This document describes how to connect and configure Channelized WAN SwitchProbe devices. These devices are used in WAN networks and are installed between a Data Service Unit/Channel Service Unit (DSU/CSU) and the WAN cloud.

You can use Channelized WAN SwitchProbe devices to monitor:

A T1 link, carrying a maximum of 24 DS0 units.
An E1 link, carrying a maximum of 31 DS0 units.

Note A channel contains one or more DS0 units. If a link has more than one data source, it is considered a channelized link. If a link has only one data source, it is considered a clear channel link.

Because different channels can carry data from different sources, each channel has unique properties such as speed, encapsulation protocol, signaling mode, and time slot groupings within a T1 or E1 link. However, each DS0 unit within a channel has the same properties, such as encapsulation protocol and speed. The Channelized WAN SwitchProbe devices monitor these channels and provide RMON1/RMON2 MIB-type statistics.

Each WAN interface in a Channelized T1 WAN SwitchProbe device can monitor one T1 link (either channelized or clear channel). A channelized T1 link can contain:

Up to 24 separate channels, with each channel containing one DS0, or
Two separate channels containing four DS0s each and three separate channels containing one DS0 each.

Each WAN interface in a Channelized E1 WAN SwitchProbe device can monitor one E1 link (either channelized or clear channel). A channelized T1 link can contain:

Up to 31 separate channels, with each channel containing one DS0, or
Five separate channels containing four DS0s each, and three separate channels containing two DS0s each.

Note Channelized WAN SwitchProbe devices can only monitor data—not voice or video. Therefore, do not configure the Channelized WAN SwitchProbe device to monitor voice or video time slots on a T1 or E1 link.

The Channelized WAN SwitchProbe devices use a passive, pass-through, active repeating T1/E1 tap to monitor T1 or E1 network activity.

The Channelized WAN SwitchProbe devices are available in two configurations:

Channelized T1 WAN device with an Ethernet management interface—This device monitors the network activity of a T1 WAN network before that activity passes through a DSU/CSU.
Channelized E1 WAN device with an Ethernet management interface—This device monitors the network activity of a E1 WAN network before that activity passes through a DSU/CSU.

Document Contents

This document includes the following sections:

Document Conventions

Command descriptions use the following conventions:

boldface font	Commands and keywords are in boldface.
italic font	Arguments for which you supply values are in italics.
[ ]	Elements in square brackets are optional.

Screen examples use the following conventions:

`screen` font	Terminal sessions and information the system displays are in `screen` font.
boldface screen font	Information you must enter is in boldface screen font.
[ ]	Default responses to system prompts are in square brackets.

Notes use the following conventions:

Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the publication.

Cautions use the following conventions:

Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.

Warnings use the following conventions:

Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, you must be aware of the hazards involved with electrical circuitry and familiar with standard practices for preventing accidents. To see translated versions of the warnings, refer to the translated safety warnings appendix in the Cisco SwitchProbe Installation and Configuration Guide.

Site Requirements

The SwitchProbe device is designed to operate in a normal office environment and can be placed on a table, or mounted in an equipment rack near the network segment it serves. The site must be equipped with the following:

A power source within seven feet (2.133 m) of the unit

Warning This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors).

The appropriate physical connection to the network link to be monitored

The appropriate physical connection to the network segment used to communicate with the management software such as an Ethernet or EIA/TIA-232 connection

Note EIA/TIA-232 and EIA/TIA-449 were known as recommended standards RS-232 and RS-449 before their acceptance as standards by the Electronics Industries Association (EIA) and Telecommunications Industry Association (TIA).

Before beginning the installation process, read the following installation cautions and warnings:

Note To see the warnings in multiple languages, see the translated safety warnings appendix in the Cisco SwitchProbe Installation and Configuration Guide.

Caution To prevent possible damage to the device, read the section "Site Requirements" in this document.

Warning The safety cover is an integral part of the product. Do not operate the unit without the safety cover installed. Operating the unit without the cover in place will invalidate the safety approvals and pose a risk of fire and electrical hazards.

Warning Read the installation instructions before you connect the system to its power source.

Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Warning Ultimate disposal of this product should be handled according to all national laws and regulations.

Warning The device is designed to work with TN power systems.

Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.

Warning To prevent the device from overheating, do not operate it in an area that exceeds the maximum recommended ambient temperature of 104° F (40° C). To prevent airflow restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation openings.

Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:

This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack.

Unpacking a Channelized WAN SwitchProbe Device

Before unpacking the shipping carton, ensure that there is no visible damage to the carton. If there is damage, notify the carrier representative, and arrange for a representative to be present while you unpack the carton.

After opening the shipping carton and removing the unit, inspect it for any obvious damage that might have occurred during shipment. If any damage is present, file a claim with the carrier.

Inspect the shipping carton contents and verify that you have received the following:

Channelized WAN SwitchProbe device
Power cord (optional outside of the United States)
T1/E1 WAN tap kit and cables
Cisco SwitchProbe Installation and Configuration Guide
This document

Physical Features of Channelized WAN SwitchProbe Devices

This section describes the physical features of Channelized WAN SwitchProbe devices.

Note Before connecting this device to the network, you must configure it with an IP address, subnet mask, and default gateway address. For more information, see the initialization chapter in the Cisco SwitchProbe Installation and Configuration Guide. To connect this device to the network, see the section "Connecting a Channelized WAN SwitchProbe Device to the Network" in this document.

The Channelized WAN SwitchProbe devices are part of the PB8 SwitchProbe device series and are housed in front-access chassis that measures 17 inches wide, by 16.5 inches deep, by 5.25 inches high (13.3 by 43.18 by 41.91 cm). You can mount these devices in a 19-inch equipment rack. For instructions on mounting the device in a rack, see the installation chapter in the Cisco SwitchProbe Installation and Configuration Guide.

The following sections describe each area of the Channelized WAN SwitchProbe devices:

Front Panel

Figure 1 shows the front panel of the Channelized T1/E1 WAN SwitchProbe model.

Note The T1 and E1 WAN SwitchProbe models are very similar in appearance.

Figure 1: Channelized T1/E1 WAN SwitchProbe Device—Front Panel

The following sections describe the elements on the front panel of the Channelized WAN SwitchProbe devices:

Chassis LEDs

Table 1 describes the four LEDs on the top left of the chassis front panel.

Table 1: Chassis LEDs

LED Label	LED Color	Status	Meaning
POWER	Green	On	Proper power is being supplied to the device. This LED is normally on.
POWER	Green	Off	Proper power is not being supplied to the device.
FAULT	Red	On or Blinking	Hardware or software error in the device.
FAULT	Red	Off	Device is working properly.
DIAG			Reserved for future diagnostic use.
ACTIVITY	Amber	On	Heavy network traffic.
		Blinking	Moderate network traffic.
		Off	No network traffic.

Manual Reset Button

There is a small pin hole (Figure 1) to the left of the LEDs that provides access to the manual reset button. To manually reboot the device, insert a small object such as the tip of a pen, and push inward. A slight press of the manual reset button reboots the device.

Note When you reset a SwitchProbe device, all counters are cleared to zero. Any changes you made to the device settings (using the Agent Configuration Utility) since the previous reset take effect.

You can also reset the device using the Reset Agent option of the Agent Configuration Utility. For more information about this option, see the Cisco SwitchProbe Installation and Configuration Guide.

Interfaces

The following sections describe the interfaces on the Channelized WAN SwitchProbe devices:

Network Interface Cards

Channelized WAN SwitchProbe devices contain the following three network interface cards:

Ethernet—Interface 1. The default mode of this interface (manage) allows the SwitchProbe device to communicate on the network by exchanging (sending and receiving) commands with a management station. You can change the mode of the Ethernet interface using the Agent Configuration Utility. However, to maintain peak performance, Cisco Systems recommends that you maintain the interface in manage mode. For information about configuring network interfaces, see the Cisco SwitchProbe Installation and Configuration Guide.

: For information about the Agent Configuration Utility, see:

The initialization chapter in the Cisco SwitchProbe Installation and Configuration Guide.

The section "Configuring a Channelized T1 WAN SwitchProbe Device" or "Configuring a Channelized E1 WAN SwitchProbe Device" in this document.

WAN—Interfaces 3 and 4. Two WAN interfaces (corresponding to one DB-26 connector) are used to monitor two T1 WAN networks, and are always configured in monitor mode.

Note

not

Figure 2 shows the interfaces on a Channelized T1/E1 WAN SwitchProbe device.

Figure 2: Channelized T1/E1 WAN SwitchProbe Device—Interfaces

Table 2 describes the interfaces on the Channelized T1/E1 WAN SwitchProbe devices.

Table 2: Channelized T1/E1 WAN SwitchProbe Interfaces

Interface Number	Interface Type	Connection Type	Default Interface Mode
1	Ethernet	Thicknet (10Base5) Thinnet (10Base2) Unshielded Twisted Pair (RJ-45)	Manage
2	Serial (PCC)	Remote (DB-9) port	Manage
3 and 4	WAN	DB-26 port (supports connection to tap)	Monitor

Peripheral Controller Card

The Peripheral Controller Card (PCC), always designated as interface 2, has the following three external components:

Remote Port—Serial Line Internet Protocol (SLIP) port. This 9-pin, male, D-type connector supports RS-232 signals. The port specifications are listed in Table 3.

: The remote port can only be used to exchange management data to and from an attached device such as a management station or a modem. You must configure the remote port to manage mode. The remote port can be the secondary management port if communication to the primary management port is lost.

Note

To adjust the baud rate of the remote port, see the Cisco SwitchProbe Installation and Configuration Guide.

Table 3 shows the console and remote port specifications.

Table 3: Console and Remote Port Specifications

Port Setting	Specification
Line rate	9600 bps (default)
Line code	ASYNC
Line interface	EIA/TIA-232
No. of bits	8
No. of stop bits	1
Parity	None

Note EIA/TIA-232 and EIA/TIA-530 were known as recommended standards RS-232 and RS-530 before acceptance as standards by the Electronic Industries Association (EIA) and Telecommunications Industry Association (TIA).

Console Port—Configuration port. This 9-pin, male, D-type connector supports RS-232 signals.

: To configure a SwitchProbe device (set IP address, subnet mask, and default gateway address) using an ASCII terminal, you must connect that terminal to the console port. For more information about configuring the SwitchProbe device through an ASCII terminal, see the initialization chapter in the Cisco SwitchProbe Installation and Configuration Guide.

Note

: Use a null-modem cable to connect the console port to an ASCII terminal. A sample wiring diagram of a null-modem crossover cable is provided in "Cable Pinouts."

DIP Switches (SW1)—Configurable DIP switches (labeled SW1) between the console and remote ports used for adjusting the baud rate of the console port and setting the device's boot mode.
- Switch 1—Specifies whether the device boots from FLASH memory or erasable programmable read-only memory (EPROM).
- Switch 2—Not used.
- Switches 3 and 4—Specifies the console port baud rate.

Table 4 shows the DIP switch settings.

Table 4: DIP Switch Settings

Switch	Setting	Result
1	Off (default) On	Boot from FLASH memory Boot from EPROM
2	Off	Reserved
3, 4	3 = off 4 = off	Console port = 1200 bps
	3 = off 4 = on	Console port = 2400 bps
	3 = on (default) 4 = off (default)	Console port = 9600 bps (default)
	3 = on 4 = on	Console port = 19200 bps

Note Cisco SwitchProbe devices have the latest version of agent firmware loaded in both EPROM and FLASH memory. If an updated version becomes available, you might need to upgrade the agent firmware. For information about updating the firmware, see the Cisco SwitchProbe Installation and Configuration Guide.

Because SwitchProbe devices boot from FLASH memory by default, all upgraded agent firmware is written to FLASH memory. Regardless of any upgrade, the factory-installed, original version of agent firmware remains in the EPROM. Therefore, if a firmware upgrade fails, you can force the device to boot from the EPROM by setting DIP switch 1 to on. The agent will boot from the EPROM and use the original version of firmware.

If the FLASH becomes corrupted, the agent automatically boots from EPROM, regardless of the setting of DIP switch 1.

Ethernet Interface LEDs

The Ethernet interface contains two LEDs, described in Table 5.

Table 5: Ethernet Interface LEDs

LED Position	LED Color	Status	Description
Left LED	Green	On Off	Link signal detected. No link signal detected or no cable is attached.
Right LED	Amber	On Blinking Off	Heavy network traffic. Moderate network traffic. No network traffic.

Figure 3 shows the Ethernet interface LEDs.

Figure 3: Ethernet Interface LEDs

Rear Panel

Figure 4 shows the rear panel of a Channelized T1/E1 WAN SwitchProbe device.

Figure 4: Channelized WAN SwitchProbe Device—Rear Panel

Power Switch

The power switch is on the upper right of the rear panel of the device.

To turn on the power, press the switch once.
To turn off the power, press the switch again.

Caution To avoid damaging the device, you cannot turn the power off for four seconds after you turn the power on.

Power Socket

The power socket is located on the lower right rear panel of the device. The power socket has three metal prongs.

Each SwitchProbe device is equipped with an AC power cord for connection to an appropriate power source. To connect the device to a power source, see "Connecting a Channelized WAN SwitchProbe Device to a Power Source."

Note The power supply automatically adjusts to the applied voltage. There is no switch to change input voltage if the device is moved from the United States to Europe.

Connecting a Channelized WAN SwitchProbe Device
to the Network

Note Before connecting a Channelized WAN SwitchProbe device to the network, you must configure it with an IP address, subnet mask, and default gateway address. For more information, see the initialization chapter in the Cisco SwitchProbe Installation and Configuration Guide.

Before connecting this device to the network, note the following warnings:

Note To see the warnings in multiple languages, refer the translated safety warnings appendix in the Cisco SwitchProbe Installation and Configuration Guide.

Warning This equipment is to be installed and maintained by service personnel only as defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel.

Warning The telecommunications lines must be disconnected 1) before unplugging the main power connector and/or 2) while the housing is open.

Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.

To connect a Channelized T1/E1 WAN SwitchProbe device to the network segment, see the following sections:

Making a Connection to an Ethernet Interface

The Ethernet interface supports either Thicknet, Thinnet, or unshielded twisted pair (UTP) cable types; the device is set to one of the three types during manufacture. A label in the lower portion of the device front panel indicates the factory-set configuration.

Table 6 describes the label and corresponding connection.

Table 6: Ethernet Interface Factory Settings

If the Label States...	You Connect
Configured for AUI	A Thicknet (10Base5) cable to the Thicknet connector.
Configured for BNC	A Thinnet (10Base2) cable to the Thinnet connector.
Configured for UTP	A category 5 UTP cable to the RJ-45 UTP connector.

Making a Connection to a T1 or E1 WAN Interface

Each WAN interface is a single port with a 26-pin, D-type connector. You use a T1/E1 WAN tap (included with the SwitchProbe device) to connect the WAN interface to the network segment.

The Channelized WAN SwitchProbe device is shipped with a T1/E1 WAN tap kit, which consists of the following items:

One channelized tap unit
One T1/E1 WAN tap interface cable
Four 15-foot Bantam cables
Two 3-foot RJ-48-to-Bantam cables
Two 15-foot RJ-48c cables, 120 Ohm
Four BNC T female connectors
Four 3-foot BNC cables, 75 Ohm
Two three-foot RJ-48c-to-dual-BNC cables

Figure 5 shows the front panel of the T1/E1 WAN tap. The front panel of the tap contains one DB-25 port.

Figure 5: T1/E1 WAN Tap—Front Panel

Figure 6 shows the rear panel of the T1/E1 WAN tap. The rear panel contains four RJ-48c ports—labeled IN and OUT; and four Bantam ports—labeled Monitor TX and Monitor RX.

Figure 6: T1/E1 WAN Tap—Rear Panel

Connecting a T1 or E1 network segment to a T1 or E1 WAN interface on a Channelized WAN SwitchProbe device is a two-stage process:

Connect the T1/E1 WAN tap to the SwitchProbe device.
Connect the T1/E1 WAN tap to the network segment.

Note Each tap supports a maximum of two links.

Connecting the T1/E1 WAN Tap to the SwitchProbe Device

To connect a T1/E1 WAN tap to the SwitchProbe device, see Figure 7 and follow these steps:

Step 1 Connect the DB-25F (female) end of the 15-foot cable (included with the SwitchProbe device) to the 25-pin male connection on the front of the tap.

Step 2 Connect the DB-26M (male) end of the 15-foot cable to one of the SwitchProbe device WAN interfaces (26-pin female connector).

Figure 7: Connecting the T1/E1 WAN Tap to the SwitchProbe Device

Step 3 To monitor a T1 line, set the DIP switch (on the right front of the tap) to T1.

To monitor an E1 line, set the DIP switch to E1.

Note

Step 4 To monitor RJ-48c or BNC connections, set the DIP switch (on the right front of the tap) to RJ

To monitor Bantam connections, set the DIP switch to Bantam.

Note

Connecting a T1/E1 WAN Tap to the Network Segment

Because routers have many different types of connectors, there are many ways you can connect a tap to a network segment.

The following sections describe four common scenarios for connecting the T1/E1 WAN tap to a network segment:

Tap Between a Router (With DSU) and a CSU Connected to a WAN Cloud

Figure 8 shows how to place the tap and SwitchProbe device between a router with Data Service Unit (DSU) and a Channel Service Unit (CSU) connected to a WAN cloud.

Figure 8: Tap Between a Router (With DSU) and a CSU Connected
to a WAN Cloud

The T1/E1 WAN tap kit consists of two RJ-48c cables (among other cables). To connect the tap to a router (with DSU) and a CSU, see Figure 9 and follow these steps:

Step 1 Connect one end of the RJ-48c cable to the tap port labeled IN.

Step 2 Connect the other end of the RJ-48c cable to the router (with DSU).

Step 3 Connect one end of the second RJ-48c cable to the tap port labeled OUT.

Step 4 Connect the other end of the second RJ-48c cable to the CSU.

Figure 9: Connecting the Tap to a Router (With DSU) and a CSU

Tap Between a Router (With DSU/CSU) and a T1 Line Connected to a
WAN Cloud

Figure 10 shows how to place the tap and SwitchProbe device between a router (with DSU/CSU) and a T1 line connected to a WAN cloud.

Figure 10: Tap Between a Router (With DSU/CSU) and a T1 Line Connected to a WAN Cloud

The T1/E1 WAN tap kit consists of two RJ-48c cables (among other cables). To connect the tap to a router (with DSU/CSU) and a WAN cloud, see Figure 11 and follow these steps:

Step 1 Connect one end of the RJ-48c cable to the tap port labeled IN.

Step 2 Connect the other end of the RJ-48c cable to the router (with DSU/CSU).

Step 3 Connect one end of the second RJ-48c cable to the tap port labeled OUT.

Step 4 Connect the other end of the second RJ-48c cable to the WAN cloud.

Figure 11: Connecting the Tap to a Router (With DSU/CSU) and a
WAN Cloud

Tap Between a Router (With G.703-Coax) and an E1 Line Connected to a WAN Cloud

Figure 12 shows how to place the tap and SwitchProbe device between a router (with G.703-coax) and an E1 line connected to a WAN cloud.

Figure 12: Tap Between a Router (With G.703-Coax) and an E1 Line Connected to a WAN Cloud

The T1/E1 WAN tap kit consists of two RJ-48c-to-dual-BNC cables (among other cables). To connect the tap to a router (with G.703-coax) and a WAN cloud, see Figure 13 and follow these steps:

Step 1 Connect the end of the cable with RJ-48c connector to the tap port
labeled IN.

Step 2 Connect the other end of the RJ-48c cable (with dual BNC connectors) to a T-connector (between router and WAN cloud).

Step 3 Connect the end of the second cable (with RJ-48c connector) to the tap port labeled OUT.

Step 4 Connect the other end of the second RJ-48c cable (with dual BNC connectors) to the T-connector (between router and WAN cloud).

Figure 13: Connecting the Tap to a Router (With G.703-Coax) and a WAN Cloud

Tap Between a Router (Where CSU Has Bantam Jacks) and a T1/E1 Line Connected to a WAN Cloud

Figure 14 shows how to place the tap and SwitchProbe device between a router (where the CSU has Bantam jacks) and a T1/E1 line connected to a WAN cloud.

Figure 14: Tap Between a Router (Where CSU Has Bantam Jacks) and a T1/E1 Line Connected to a WAN Cloud

The T1/E1 WAN tap kit consists of Bantam jack cables (among other cables). To connect the tap to a router (where the CSU has Bantam jacks) and a WAN cloud, see Figure 15 and follow these steps:

Step 1 Connect the end of the cable (without Bantam jacks) to the tap port
labeled IN.

Step 2 Connect the other end of this cable (with Bantam jacks) to the router (with CSU having Bantam jacks).

Step 3 Connect the end of the second cable (without Bantam jacks) to the tap port labeled OUT.

Step 4 Connect the other end of this cable (with Bantam jacks) to the router (where the CSU has Bantam jacks).

Figure 15: Connecting the Tap to a Router (Where CSU Has Bantam Jacks) and a WAN Cloud

Depending on the CSU model, not all Bantam-to-Bantam connections will be successful. As an alternate, use the tap-to-router cabling method, using an RJ-48-to-Bantam cable as illustrated in Figure 16.

The T1/E1 WAN tap kit consists of RJ-48-to-Bantam jack cables (among other cables). To connect the tap to a router (where the CSU has Bantam jacks) and a WAN cloud, see Figure 16 and follow these steps:

Step 1 Set the DIP switch (on the right front of the tap) to RJ.

Step 2 Connect the end of the cable (with RJ-48 connector) to the tap port
labeled IN.

Step 3 Connect the other end of this cable (with Bantam jacks) to the router (where the CSU has Bantam jacks).

Figure 16: Connecting the Tap to a Router (Using RJ-48-to-Bantam Jacks) and a WAN Cloud

Connecting a Channelized WAN SwitchProbe Device
to a Power Source

To connect a Channelized WAN SwitchProbe device to a power source, follow these steps:

Step 1 Using the AC power cord included with the device, connect one end of the cord to the Power In socket.

Warning This equipment is intended to be grounded. Ensure that the host is connected to earth ground during normal use.

Step 2 Connect the other end of the AC power cord to a suitable power source.

Note Depending on the voltage applied from the power source, the power supply will automatically switch to the appropriate condition.

Configuring a Channelized T1 WAN SwitchProbe Device

The Cisco SwitchProbe Installation and Configuration Guide (shipped with all Cisco SwitchProbe devices) explains the basic configuration process. Read and follow the instructions in that guide to configure the agent firmware in your SwitchProbe device.

When you have finished the basic configuration, read the remainder of this document to learn how to implement specialized agent configuration tasks that apply only to the WAN interfaces of the Channelized T1 WAN devices.

To configure a Channelized T1 WAN SwitchProbe device, follow these steps:

Step 1 From the Agent Configuration Utility menu, enter 8 and press Enter.

Step 2 Enter the menu selection of the WAN interface you want to configure.

The Agent Configuration Utility menu that is displayed when you select a Channelized WAN interface contains some unique options.

Worksheets and instructions are provided (see Table 9, Figure 23, and the section "Worksheets and Instructions") so you can record the structure of the WAN network to be monitored by a Channelized T1 WAN SwitchProbe device. When you have completed the worksheets, use that data as you enter information about the network using the Agent Configuration Utility menus.

Step 3 On the first page of the Agent Configuration Utility menu, enter 31 and press Enter.

The second page of the Agent Configuration Utility menu is displayed.

Step 4 Enter 24 and press Enter.

The WAN Link menu is displayed. The menu selections and default values provided on this menu differ slightly according to the type of WAN link you are configuring (T1 or E1).

Note You can use command-line objects to set values in these special parameters. For more information, see "Using Special Command-Line Objects."

The (T1) WAN Link menu is shown in Figure 17.

Figure 17: T1 WAN Link Menu


WAN link menu: 
 
Interface: 3, Type T1
 
[1] Enter Channel Info	.
[2] Display Channel Info.
[3] Clear All Channel Info.
[4] Change DS0 rate    :						        [64k]
[5] Change t1_code     :						        [b8zs]
[6] Change t1_framing  :						        [esf]
[7] Change data_invert :						        [off]
 
[9] Return to MAIN menu
 
Selection#:

A channelized T1 link has up to 24 DS0 units (also known as time slots). Each DS0 can have a bandwidth of 64k, 56k, or 48k.

A channel contains one or more time slots, and each time slot within a channel has the same properties, such as encapsulation protocol and speed.

The following sections contain additional configuration instructions:

Define Channels

To set up user-defined channels, enter 1 and press Enter.

The Channel Interface Creation menu is displayed (Figure 18).

Note The channel map creation and the line characteristics you select must match the DSU/CSU selections; otherwise, the device will not see accurate data.

Figure 18: Channel Interface Creation Menu


Selection#: 1
 
Enter '+/-' for next/previous channel
 
[1] Channel      :						 1
[2] Encapsulation: FRAME_RELAY						
[3] PVC discovery:		 [on]				
[4] Raw Capture  : [on]
[5] Mod_128_lapb :						 [off]
[6] Data Offset  :						 [0]
[7] Slot Map     :						 Slot 1 -> [1----------------------] <- Slot 24]
[8] Previous menu
 
Selection :

The following sections contain additional configuration instructions:

Select Channel

The Channel menu option defaults to channel 1.

To select another channel, follow these steps:

Step 1 Enter 1 and press Enter.

Step 2 At the Select Channel prompt, enter the channel number (a value from 1 through 24), and press Enter.

The selected channel number is displayed next to the Channel option in the Channel Interface Creation menu.

Note Information related to the selected channel (encapsulation, PVC discovery, and so on) is also displayed next to each menu option.

Tip

Alternate Channel Selection Method—You can select the previous or next channel by entering + or - respectively and pressing Enter.

For example, if channel 1 is the current selected channel and you want to select channel 2, enter + and press Enter. Or, if channel 18 is the selected channel and you want to select channel 17, enter - and press Enter.

Select Encapsulation Protocol

The Encapsulation menu option defaults to Line Data. To select a different encapsulation protocol for the selected channel, follow these steps:

Step 1 Enter 2 and press Enter.

A menu of encapsulation protocols is displayed.

Step 2 Enter the number associated with the encapsulation protocol that you want to assign to the selected channel and press Enter.

The selected encapsulation protocol is displayed next to the Encapsulation option of the selected channel.

Select PVC Discovery (for Frame Relay Encapsulation Only)

Channelized WAN SwitchProbe devices support the monitoring of permanent virtual circuits (PVCs) over WAN interface channels. You can configure these devices to create/discover a virtual interface for each data-link connection identifier (DLCI) on the WAN Frame Relay channels (up to 256 virtual interfaces per device).

After a DLCI virtual interface is created/discovered, it is treated as a physical interface, allowing you to monitor each DLCI as you would an entire SwitchProbe agent. You can use a number of TrafficDirector applications to view detailed statistics of any DLCI on a WAN channel. The PVC discovery menu option defaults to off.

To change the value that appears in the PVC discovery field, enter 3 and press Return. The value will toggle to its opposite value (for example, off to on).

If the selected channel uses a Frame Relay management protocol such as LMI or Annex D, PVC discovery and DLCI interface creation is fully automated. For each DLCI the device sees on the selected WAN channel, it automatically creates a virtual interface that you can monitor as you would any other agent. For more information, see "Automatically Discovering Frame Relay DLCIs."
If the selected channel does not use a Frame Relay management protocol such as LMI or Annex D, you must manually specify which DLCIs you want to monitor. For more information, see "Using Command-Line Mode to Manually Configure DLCIs."

Select Raw Capture (for Frame Relay Encapsulation Only)

When you select Frame Relay as the encapsulation type, Frame Relay header information is included in any data capture of the channel's packets. The default value in this field is off.

To change the value, enter 4 and press Enter. The value will toggle to its opposite value (for example, off to on).

Select Mod_128_lapb (for X.25 Encapsulation Only)

When the selected encapsulation type is X.25, the packets monitored by the device can have one of two headers (either Mod_8 or Mod_128_lapb). You use this option to configure the device to match the composition of the monitored link packets.

The default value in this field is off (that is, the header of monitored packets is not interpreted as a Mod_128_lapb header).

To change the value, enter 5 and press Enter. The value will toggle to its opposite value (for example, off to on).

Select Data Offset

Some packets contain a two-byte header while other packets contain a zero-byte header. You use the Data Offset option to configure the device to ignore a set number of bytes at the beginning of each data packet. The default value in this field is zero (no bytes are ignored). To change the value in this field, follow these steps:

Step 1 Enter 6 and press Enter.

Step 2 Enter the number of bytes (1 through 15) that you want the device to ignore as it reads each packet and press Enter.

Select Slot Map

This option allows you to select the DS0 units (time slots) of the selected channel.

After you select this option, you are prompted to enter the particular time slots. Enter time slot information in one of four formats:

A single time slot (for example, 7)
Several time slots, each separated by a space (for example, 11 18 4)
A range of time slots, with low and high boundaries separated by a hyphen (for example, 3-15)
A combination of the preceding forms (for example, 3 15 11-13 18-22)

Note The selected WAN interface has a finite number of time slots (T1 has 24, E1 has 31). After you select a time slot as a component of a channel, you cannot select that time slot as a component of any other channel (unless you disassociate the time slot from its original channel).

To return to the (T1) WAN Link menu, enter 8 and press Enter.

Display Channels

To view the user-defined channels within the selected WAN interface, enter 2 from the (T1) WAN Link menu and press Enter.

A list of all user-defined channels (within the selected WAN interface) with a summary of each channel's characteristics is displayed (Figure 19).

Figure 19: Channelized T1 WAN Channel Map

Selection#: 2
 
Channel map: interface 3, Type T1
 
Channel ifIndex  slotmap                              protocol
-----------------|---|----|----|----|----|----|---------------------
1       2048    [1111--------------------]            CISCO_HDLC
2       2049    [----1111----------------]            FRAME_RELAY
3       2050    [--------11--------------]            CISCO_HDLC
4       2051    [----------11------------]            FRAME_RELAY
5       2052    [------------11----------]            CISCO_HDLC
6       2053    [--------------1---------]            FRAME_RELAY
7       2054    [---------------1--------]            CISCO_HDLC
 
Press <Enter> key to proceed ..

Note The agent internally assigns an interface index number (ifIndex) for each user-defined channel in the selected WAN interface. To receive a statistics about a specific channel, you must create an agent and direct that agent to monitor the channel's corresponding ifIndex.

Clear All Channels

To clear (delete) all channels associated with the selected interface, follow these steps:

Step 1 Enter 3 and press Enter.

A message is displayed to alert you that all channel maps (for the selected interface) will be deleted.

Step 2 Confirm the deletion by entering Y and pressing Enter at the confirmation prompt.

Change Line Characteristics of Listed Channels

You use menu options 4, 5, 6 and 7 to set the line characteristics of the listed channels. For example, if you change the DS0 rate, all listed channels will inherit that DS0 rate. The fields listed in Table 7 display when the WAN link is a T1 line.

Table 7: T1 Line Characteristic Fields

Field	Description and Action
Change DS0 rate	Each DS0 can have a bandwidth rate of 64k (default), 56k, or 48k To change the DS0 bandwidth value, enter 4 and press Enter. Three choices are displayed. Enter the desired bandwidth rate. The rate is case sensitive,
Change t1_code	The device is set to a default code standard of B8ZS (Binary 8, Zero Sequencing). To toggle the code to AMI (Alternate Mark Inversion), enter 5 and press Enter.
Change t1_framing	The device is set to a default framing value of ESF (Extended Super Frame). To toggle the framing standard to SF Super Frame (also known as D4), enter 6 and press Enter. The value changes to sf(d4).
Change_data_invert	Data inversion is primarily used with AMI in most older CSUs for better noise tolerance. The default data invert setting is off. To toggle this feature (on/off), enter 7 and press Enter.

To return to the main menu of the Agent Configuration Utility, enter 9 and press Enter.

Configuring a Channelized E1 WAN SwitchProbe Device

When you have finished the basic configuration, read the remainder of this document to learn how to implement specialized agent configuration tasks that only apply to the WAN interfaces of the Channelized E1 WAN devices.

To configure a Channelized E1 WAN SwitchProbe device, follow these steps:

Step 1 From the Agent Configuration Utility menu, enter 8 and press Enter.

Step 2 Enter the menu selection of the WAN interface you want to configure.

The Agent Configuration Utility menu that is displayed when you select a Channelized WAN interface contains some unique options.

Worksheets and instructions are provided (see Table 10, Figure 24, and the section "Worksheets and Instructions") so you can record the structure of the WAN network to be monitored by a Channelized E1 WAN SwitchProbe device. When you have completed the worksheets, use that data as you enter information about the network using the Agent Configuration Utility menus.

Step 3 On the first page of the Agent Configuration Utility menu, enter 31 and press Enter.

The second page of the Agent Configuration Utility menu is displayed.

Step 4 Enter 24 and press Enter.

The WAN Link menu is displayed. The menu selections and default values provided on this menu differ slightly according to the type of WAN link you are configuring (T1 or E1).

Note You can use command-line objects to set values in these special parameters. For more information, see "Using Special Command-Line Objects."

The (E1) WAN Link menu is shown in Figure 20.

Figure 20: E1 WAN Link Menu

WAN link menu: 
 
Interface: 3, Type E1
 
[1] Enter Channel Info	.
[2] Display Channel Info.
[3] Clear All Channel Info.
[4] Change DS0 rate    :						        [64k]
[5] Change e1_code     :						        [hdb3]
[6] Change e1_framing  :						        [crc_4]
[7] Change e1_mode     :						        [ccs]
[8] Change data_invert :						        [off]
 
[9] Return to MAIN menu
 
Selection#:

A channelized E1 link has up to 31 DS0 units (also known as time slots). A channel contains one or more time slots, and each time slot within a channel has the same properties, such as encapsulation protocol and speed.

The following sections contain additional configuration instructions:

Define Channels

To set up user-defined channels, enter 1 and press Enter.

The Channel Interface Creation menu is displayed (Figure 21).

Note The channel map creation and line characteristics selected must match the DSU/CSU selections; otherwise, the device will not see accurate data.

Figure 21: Channel Interface Creation Menu

Selection#: 1
 
Enter '+/-' for next/previous channel
 
[1] Channel      :						 1
[2] Encapsulation: FRAME_RELAY						
[3] Pvc discovery:		 [on]				
[4] Raw Capture  : [on]
[5] Mod_128_lapb :						 [off]
[6] Data Offset  :						 [0]
[7] Slot Map     :						 Slot 1 -> [1-----------------------------] <- Slot 31]
[8] Previous menu
 
Selection :

The following sections contain additional configuration instructions:

Select Channel

The Channel menu option defaults to channel 1.

To select another channel, follow these steps:

Step 1 Enter 1 and press Enter.

Step 2 At the Select Channel prompt, enter the channel number (a value from 1 through 31) and press Enter.

The selected channel number is displayed next to the Channel option in the Channel Interface Creation menu.

Note Information related to the selected channel (encapsulation, PVC discovery, and so on) is displayed next to each menu option).

Tip

Select Encapsulation Protocol

The Encapsulation menu option defaults to Line Data. To select a different encapsulation protocol for the selected channel, follow these steps:

Step 1 Enter 2 and press Enter.

A menu of encapsulation protocols is displayed.

Step 2 Enter the number associated with the encapsulation protocol that you want to assign to the selected channel and press Enter.

The selected encapsulation protocol is displayed next to the Encapsulation option of the selected channel.

Select PVC Discovery (for Frame Relay Encapsulation Only)

After a DLCI virtual interface is created/discovered, it is considered a physical interface, allowing you to monitor each DLCI as you would an entire SwitchProbe agent. You can use a number of TrafficDirector applications to view detailed statistics about any DLCI on a WAN channel. The PVC discovery menu option defaults to off.

To change the value that appears in the PVC discovery field, enter 3 and press Enter. The value toggles to its opposite value (for example, off to on).

If the selected channel uses a Frame Relay management protocol such as LMI or Annex D, PVC discovery and DLCI interface creation is fully automated. For each DLCI the device sees on the selected WAN channel, it automatically creates a virtual interface that you can monitor as you would any other agent. For more information, see "Automatically Discovering Frame Relay DLCIs."
If the selected channel does not use a Frame Relay management protocol such as LMI or Annex D, you must manually specify which DLCIs you want to monitor. For more information, see "Using Command-Line Mode to Manually Configure DLCIs."

Select Raw Capture (for Frame Relay Encapsulation Only)

When you select Frame Relay as the encapsulation type, Frame Relay header information is included in any data capture of the channel's packets. The default value is off.

To change the value, enter 4 and press Enter. The value toggles to its opposite value (for example, off to on).

Select Mod_128_lapb (for X.25 Encapsulation Only)

When the selected encapsulation type is X.25, packets monitored by the device can have one of two headers (Mod_8 or Mod_128_lapb). This option allows you to configure the device to match the composition of the monitored link's packets. The default value is off (the device does not interpret header of monitored packets as a Mod_128_lapb header).

To change the value, enter 5 and press Enter. The value toggles to its opposite value (for example, off to on).

Select Data Offset

Some packets contain a two-byte header and others contain a zero-byte header. You use the Data Offset option to configure the device to ignore a set number of bytes at the beginning of each data packet. The default value is zero (no bytes are ignored).

To change the value, follow these steps:

Step 1 Enter 6 and press Enter.

Step 2 Enter the number of bytes (1 through 15) that you want ignored as the device reads each packet, and press Enter.

Select Slot Map

Use this option to select the DS0 units (time slots) that will make up the selected channel.

After you select this option, you are prompted to enter the time slots. Enter time slot information in one of four formats:

A single time slot (for example, 28)
Several time slots, each separated by a space (for example, 25 18 4)
A range of time slots, with low and high boundaries separated by a hyphen (for example, 3-19)
A combination of the preceding formats (for example, 3 15 11-13 18-22)

Note The selected WAN interface has a fixed number of time slots (T1 has 24, E1 has 31). After you select a time slot as a component of a channel, that time slot cannot be selected as a component of any other channel (unless you disassociate the time slot from its original channel).

To return to the (E1) WAN Link menu, enter 8 and press Enter.

Display Channels

To view the user-defined channels within the selected WAN interface, enter 2 from the E1 WAN Link menu and press Enter.

A list of all user-defined channels (within the selected WAN interface) with a summary of each channel's characteristics is displayed (Figure 22).

Figure 22: User-Defined Channels

Channel map: interface 3, Type E1
 
Channel ifIndex  slotmap                          protocol
-----------------|---|----|----|----|----|----|-----------------
1       2048    [11-----------------------------] FRAME_RELAY
2       2049    [--11---------------------------] FRAME_RELAY
3       2050    [----11-------------------------] FRAME_RELAY
4       2051    [------11-----------------------] FRAME_RELAY
5       2052    [--------11---------------------] FRAME_RELAY
6       2053    [----------11-------------------] FRAME_RELAY
7       2054    [------------11-----------------] FRAME_RELAY
8       2055    [--------------11---------------] FRAME_RELAY
9       2056    [----------------11-------------] FRAME_RELAY
10      2057    [------------------11-----------] FRAME_RELAY
11      2058    [--------------------11---------] FRAME_RELAY
12      2059    [----------------------11-------] FRAME_RELAY
13      2060    [------------------------11-----] FRAME_RELAY
14      2061    [--------------------------11---] FRAME_RELAY
15      2062    [----------------------------11-] FRAME_RELAY
16      2063    [------------------------------1] FRAME_RELAY
 
Press <Enter> key to proceed ..

Note The agent internally assigns an interface index number (ifIndex) for each user-defined channel in the selected WAN interface. To receive statistics for a specific channel, you must create an agent and direct that agent to monitor the channel's corresponding ifIndex.

Clear All Channels

To clear (delete) all channels associated with the selected interface, follow these steps:

Step 1 Enter 3 and press Enter.

A message is displayed to alert you that all channel maps (for the selected interface) will be deleted.

Step 2 Confirm the deletion by entering Y and pressing Enter at the confirmation prompt.

Change Line Characteristics of Listed Channels

You use menu options 4 through 8 to set the line characteristics of the listed channels. For example, if you change the DS0 rate, all listed channels will inherit that DS0 rate. The fields listed in Table 7 are displayed when the WAN link is a E1 line.

Table 8: E1 Line Characteristic Fields

Field	Description and Action
Change DS0 rate	Each DS0 can have a bandwidth rate of 64k (default), 56k, or 48k. To change the DS0 bandwidth value, enter 4 and press Enter. Three choices are displayed. Enter the desired bandwidth rate. The rate is case sensitive.
Change e1_code	The device is set to a default code standard of HDB3 (high-density, bipolar 3-zero). To toggle the code to AMI (Alternate Mark Inversion), enter 5 and press Enter.
Change e1_framing	The device is set to a default framing value of CRC_4 (cyclic redundancy check). To toggle the framing standard to NO_CRC_4 (no cyclic redundancy check), enter 6 and press Enter.
Change_e1_mode	The E1 WAN device can have one of two modes: CCS (Common Channel Signaling)—Used in a network with no voice traffic (slot 0 is used for framing data). This is the default. CAS (Channel Associated Signaling)—Used in a network that has voice and data traffic (slot 0 is used for framing data; slot 16 is used for framing voice). . To toggle the e1_mode value (CCS/CAS), enter 7 and press Enter.
Change_data_invert	Data inversion is primarily used with AMI in most older CSUs for better noise tolerance. The default data invert setting is off. To toggle this feature (on/off), enter 8 and press Enter.

To return to the main menu of the Agent Configuration Utility, enter 9 and press Enter.

Monitoring DLCI Virtual Interfaces on Channelized WAN SwitchProbe Devices

Channelized WAN SwitchProbe devices support the monitoring of permanent virtual circuit (PVCs) over WAN Frame Relay segments. You can configure these devices to create/discover up to 256 data-link connection identifiers (DLCIs) on the monitored WAN Frame Relay segment (from one channel or many channels).

After you create a DLCI virtual interface, it is treated as a physical interface, allowing you to monitor each DLCI as you would an entire SwitchProbe agent. You can use a number of TrafficDirector applications to view detailed statistics about any DLCI on a WAN segment.

Note Properties (domains, traps, and so on) are assigned to the entire WAN segment and are inherited by all DLCIs on the segment.

If the WAN segment you are monitoring uses a Frame Relay management protocol such as LMI or Annex D, PVC discovery and DLCI interface creation is fully automated. For more information, see "Automatically Discovering Frame Relay DLCIs."

For each DLCI the device sees on the WAN network, it automatically creates a virtual interface that you can monitor as you would any other agent. Because this automatic discovery feature is enabled by default, you will usually connect the device to the network and specify Frame Relay as the WAN encapsulation protocol (see "Select Encapsulation Protocol"). The device will automatically learn any DLCI on the monitored network.

If the WAN segment you are monitoring does not use a Frame Relay management protocol such as LMI or Annex D, you must manually specify which DLCIs you want to monitor (see "Manually Specifying Frame Relay DLCIs").

The following sections contain additional information:

Automatically Discovering Frame Relay DLCIs

When you enable the PVC discovery option (it is enabled by default), the SwitchProbe device automatically discovers any permanent virtual channels (PVCs) on the attached WAN Frame Relay segments that are running a management protocol.

The device reads the management protocol packets to obtain the DLCI and creates a virtual interface for each DLCI found on the attached segment.

LMI management protocol—The device automatically discovers both the DLCI number and the committed information rate (CIR) and creates a corresponding DLCI virtual interface.
Annex D or Annex A and ITU-T management protocol—The device automatically discovers the DLCI number and creates a corresponding DLCI virtual interface. To derive the CIR for the newly created interface, the device first looks in NVRAM for a matching DLCI entry.
- If it finds a matching DLCI entry, the device uses the CIR specified in NVRAM.
- If it does not find a matching DLCI entry, the device uses the speed of the WAN interface as the CIR.

Manually Specifying Frame Relay DLCIs

If an attached WAN Frame Relay segment is not running a management protocol, you can manually specify which DLCIs you want to monitor as an interface.

Note You can also manually specify the CIR of DLCI interfaces that the SwitchProbe device creates automatically. As explained in the previous section, DLCI interfaces that the device creates automatically on segments running management protocols such as, Annex D, Annex A, and ITU-T decipher the speed of the WAN interface based on the management protocol.

If you know the CIR is different, you can manually specify the DLCI and CIR of the PVC you are interested in, then reboot the SwitchProbe device. Upon automatically discovering the PVC again, the device uses the CIR speed you specified for the DLCI (instead of attempting to decipher the speed of the WAN interface based on a management protocol).

You can use one of the following methods to manually specify which DLCIs you want to monitor as an interface:

Using the Agent Configuration Utility command-line mode
Using an agentname.frp file that you create using a text editor and download to a specific physical interface on the SwitchProbe device using the TrafficDirector Configuration Manager application (see Using the Campus TrafficDirector Application).

The following section contains additional information about manually configuring DLCIs:

Using Command-Line Mode to Manually Configure DLCIs

Using Command-Line Mode to Manually Configure DLCIs

To add DLCIs you want to monitor, delete DLCIs you are no longer interested in, or clear all DLCI interfaces, follow these steps.

Note Each command applies only to the physical interface you specify in the command. Information from these commands is stored in NVRAM and loaded when the device boots with the PVC discovery option turned off.

Step 1 Select the command-line mode option by entering 11 and press Enter.

Step 2 To add DLCIs to an interface, use the following command syntax:

set dlci add phys_interface "dlci_number dte_cir dce_cir"

where:

phys_interface is the number of the physical WAN interface on which you want to create DLCI virtual interfaces. DLCI virtual interfaces are created only on the physical interface that you specify.
dlci_number is the number that identifies the DLCI that you want to monitor. The SwitchProbe device uses this number as both the name and index number of the DLCI interface.
dte_cir is the Committed Information Rate (in bps) of DTE traffic on the DLCI interface.
dce_cir is the Committed Information Rate (in bps) of DCE traffic on the DLCI interface.

Note You can enter a single CIR parameter in the set dlci add command. When you do that, the SwitchProbe device uses the single CIR for both DCE and DTE traffic.

Step 3 To delete a specific DLCI on an interface, use the following command syntax:

set dlci delete "phys_interface dlci_number"

where:

phys_interface is the number of the physical WAN interface on which you want to remove DLCI virtual interfaces. DLCI virtual interfaces are deleted only on the physical interface you specify.
dlci_number is the number that identifies the specific DLCI you want to delete.

Step 4 To delete all DLCIs on an interface, use the following command syntax:

set dlci clear phys_interface

where phys_interface is the number of the physical WAN interface on which you want to delete all DLCI virtual interfaces.

Step 5 Exit command-line mode by entering quit and pressing Enter.

The Agent Configuration Utility Main menu is displayed.

Note All manually configured DLCIs take effect when you reset the SwitchProbe agent, but only if the PVC discovery option in the device is turned off.

Step 6 To reset the SwitchProbe agent, enter 12 and press Enter.

A message is displayed asking you to confirm the action of resetting the device.

Step 7 Enter Y and press Enter.

Worksheets and Instructions

The worksheets and instructions in this section are provided so you can record the structure of the WAN network to be monitored by a Channelized WAN SwitchProbe device. Use the data on these worksheets as you enter information about the network using the Agent Configuration Utility menus.

T1 WAN Link Worksheet Instructions—Interface Settings

In Table 9, circle the appropriate setting for WAN Interface Number, DS0 rate, T1 line code, T1 framing, and date inversion.

Table 9: T1 WAN Link Worksheet—Interface Settings
(Circle Appropriate Setting)

WAN Interface Number	3	4
DS0 rate	48k	56k	64k (recommended)
T1 line code	B8ZS	AMI
T1 framing	ESF	SF(d4)
Data inversion	Off	On

T1 WAN Link Worksheet Instructions—Channel Mapping

The WAN network can consist of many time slots in many channels. The worksheet in Figure 23 is provided to help you map the channels/time slots of the network to be monitored. When complete, you can use this chart to assist you in entering the channel/time slot information required by the SwitchProbe device.

To complete the worksheet, follow these steps:

Step 1 Place an X in the appropriate time slot of the channel(s) on the network to be monitored.

For example, if the network is configured to use time slots 6, 8, and 21 of channel 4, place an X to the right of channel 4 in the 6, 8 and 21 time slots.

Step 2 Whenever you place an X in a time slot:

Circle the time slot number (at the top of the worksheet).
Draw a line from the time slot number to the bottom of the worksheet (so you do not use the same time slot twice).
Circle the channel number (along the left side of the worksheet).
Draw a line from the channel number to the last cell (Encaps Protocol) in the chart.
In the Encaps Protocol field, enter the name of the channel encapsulation protocol type (for example Frame Relay, PPP, Cisco HDLC, and so on).

Figure 23: T1—Channel Mapping

TIME SLOTS
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	Encaps Protocol
	1
	2
	3
	4
	5
C	6
H	7
A	8
N	9
N	10
E	11
L	12
	13
N	14
U	15
M	16
B	17
E	18
R	19
	20
	21
	22
	23
	24

E1 WAN Link Worksheet Instructions—Interface Settings

In Table 10, circle the appropriate setting for WAN Interface Number, DS0 rate, E1 line code, E1 framing, E1 mode, and data inversion.

Table 10: E1 WAN Link Worksheet—Interface Settings
(Circle Appropriate Setting)

WAN interface number	3	4
DS0 rate	48k	56k	64k (recommended)
E1 line code	HDB3	AMI
E1 framing	CRC-4	NO CRC-4
E1 mode	CCS	CAS
Data inversion	Off	On

E1 WAN Link Worksheet Instructions—Channel Mapping

The WAN network that you want to monitor may consist of many time slots in many channels. The chart in Figure 24 is provided to help you map the channels/time slots of the network to be monitored. When complete, you can use this chart to assist you in entering the channel/time slot information that is required by the probe.

To complete the worksheet, follow these steps:

Step 1 Place an X in the appropriate time slot of the channel(s) on the network to be monitored.

For example, if the network is configured to use time slots 11, 3, and 8 of channel 3, place an X to the right of channel 4 in the 11, 3, and 8 time slots.

Step 2 Whenever you place an X in a time slot:

Circle the time slot number (at the top of the worksheet).
Draw a line from the time slot number to the bottom of the worksheet (so you do not use the same time slot twice).
Circle the channel number (along the left side of the worksheet).
Draw a line from the channel number to the last cell (Encaps Protocol) in the chart.
In the Encaps Protocol field, enter the name of the channel encapsulation protocol type (for example Frame Relay, PPP, Cisco HDLC, and so on).

Figure 24: E1—Channel Mapping

TIME SLOTS
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	Encaps Protocol
	1
	2
	3
	4
	5
	6
	7
	8
	9
C	10
H	11
A	12
N	13
N	14
E	15
L	16
	17
N	18
U	19
M	20
B	21
E	22
R	23
	24
	25
	26
	27
	28
	29
	30
	31

Using Special Command-Line Objects

The following sections describe the special command-line objects for the WAN interface options:

Channelized T1 WAN SwitchProbe Command-Line Objects

Note For more information about command-line mode, see the Cisco SwitchProbe Installation and Configuration Guide.

You can set the options described in Table 11 for a WAN interface using option 24 (Configure WAN Link) of the Agent Configuration Utility.

Table 11: Setting T1 WAN Interface Options

This Option...	Performs This Function
lnkopt	Allows you to view (get lnkopt) or establish (set lnkopt) the following options for the WAN interface.
	t1_code—Set to a default code standard of B8ZS (Binary 8 Zero Sequencing), you can set this option to Alternate Mark Inversion (AMI). To view the value, enter get linkopt t1_code. To set the value to AMI, enter set lnkopt t1_code ami. To set the value to B8ZS, enter set lnkopt t1_code b8zs.
	t1_framing—Set to a default framing value of Extended Super Frame (ESF), you can set this option to Super Frame (SF, also known as D4). To view the value, enter get lnkopt t1_framing. To set the value to SF, enter set lnkopt t1_framing sf. To set the value to ESF, enter set lnkopt t1_framing esf.
lnkopt (continued)	data_invert—Data inversion is used primarily with AMI in most older CSUs for better noise tolerance. By default, this setting is turned off. To view the value, enter get lnkopt data_invert. To set the value to on, enter set lnkopt data_invert on. To set the value to off, enter set lnkopt data_invert off. ds0_rate—Allows you to view (get lnkopt DS0_rate) or establish (set lnkopt DS0_rate) the bandwidth of each DS0 monitored by the selected WAN interface. To view the value, enter get lnkopt ds0_rate. To set the value to 56k, enter set lnkopt ds0_rate 56k. To set the value to 48k, enter set lnkopt ds0_rate 48k.

Channelized E1 WAN SwitchProbe Command-Line Objects

Note For more information about command-line mode, see the Cisco SwitchProbe Installation and Configuration Guide.

You can set the options described in Table 12 for a WAN interface using option 24 (Configure WAN Link) of the Agent Configuration Utility.

Table 12: Setting E1 WAN Interface Options

This Option...	Performs This Function
lnkopt	Allows you to view (get lnkopt) or establish (set lnkopt) the following options for the WAN interface.
	e1_code—Set to a default code standard of HDB3 (High-Density Bipolar 3-Zero), you can set this option to Alternate Mark Inversion (AMI). To view the value, enter get linkopt e1_code. To set the value to AMI, enter set lnkopt e1_code ami. To set the value to HDB8, enter set lnkopt e1_code hdb3.
	e1_framing—Set to a default framing value of crc_4 (cyclic redundancy check), you can set this option to no_crc_4 (no cyclic redundancy check). To view the value, enter get lnkopt e1_framing. To set the value to no_crc_4, enter set lnkopt e1_framing no_crc_4. To set the value to crc_4, enter set lnkopt e1_framing crc_4.
lnkopt (continued)	e1_mode—Set to a default code standard of CCS (Common Channel Signaling), you can set this option to CAS (Channel Associated Signaling). To view the value, enter get lnkopt e1_mode. To set the value to CAS, enter set lnkopt e1_mode CAS. To set the value to CCS, enter set lnkopt e1_mode CCS.
	data_invert—Data inversion is used primarily with AMI in most older CSUs for better noise tolerance. By default, this setting is turned off. To view the value, enter get lnkopt data_invert. To set the value to on, enter set lnkopt data_invert on. To set the value to off, enter set lnkopt data_invert off. ds0_rate—Allows you to view (get lnkopt ds0_rate) or establish (set lnkopt ds0_rate`)` the bandwidth of each DS0 monitored by the selected WAN interface. Note Cisco systems strongly recommends that you use the default rate of 64k. To view the value, enter get lnkopt ds0_rate. To set the value to 56k, enter set lnkopt ds0_rate 56k. To set the value to 48k, enter set lnkopt ds0_rate 48k.

Technical Specifications

Table 13 lists technical specifications for the Channelized WAN SwitchProbe device.

Standards compliance for all SwitchProbe devices is as follows:

Compliance—CE Marking

Safety—UL1950, CAN/CSA-C22.2, No. 950-95, EN 60950, and IEC 60950
EMI—FCC Class A, EN 55022 Class A, and VCCI Class A

Table 13: Channelized WAN SwitchProbe Device Technical
Specifications

Item		Specification
Power consumption		250W maximum
Power input		100-115/220-240 /VAC, 7/4 A, 50-60 Hz (auto-switching)
Operating temperature		32º to 104ºF (0º to 40ºC)
Storage temperature		-40º to 140ºF (-4º to 60ºC)
Humidity		5% to 95% relative humidity (noncondensing)
Dimensions (H x W x D)		5.25 x 17 x 16.5 in. (excluding 1 in.-wide rack-mount clips) 13.34 x 43.18 x 41.91 cm (excluding 2.54 cm-wide rack-mount clips)
Weight		24 pounds (10.89kg)
Memory
	RAM Flash	128 MB 512 KB
Port type
	Ethernet (interface 1)	Thicknet port—DB-15 connector for 10Base Thinnet port—BNC connector for 10Base2 UTP port—RJ-45 connector for 10BaseT
	Console and remote (interface 2)	Connector style—DB-9 male connector Line speed—9600 bps (default) Line code—Asynchronous Line interface—EIA/TIA-232 Number of bits—8 Number of stop bits—1 Parity—None
Port type (continued)
	WAN (interfaces 3 and 4)	26-pin, D-type, supports connection to V.35, X.21, RS-449, EIA-530
Network management standards		SNMP V1 SNMP V2 MIB2 RMON RMON2
Manage/monitor interfaces and available modes		Interface 1, Ethernet—Mode: Manage Interface 2, Serial—Mode: Manage Interface 3 and 4, WAN—Mode: Monitor

Cable Pinouts

The following sections show the pin designations for these items:

Ethernet AUI Pin Designations

Table 14 describes the pin designations for the Ethernet AUI Interface.

Table 14: Ethernet AUI Pin Designations

Pin	Signal Name	Direction
1	Logic Ground	(GND)
2	Collision Input+ (CI+)	In
3	Transmit Data+ (DO+)	Out
4	Logic Ground	(GND)
5	Receive Data+ (DI+)	In
6	+12V Logic Ground	(GND)
7	Not Used
8	Logic Ground	(GND)
9	Collision Input- (CI-)	In
10	Transmit Data- (DO-)	Out
11	Logic Ground	(GND)
12	Receive Data- (DI-)	In
13	+12V Power (+12)	Out
14	Logic Ground	(GND)
15	Not Used

WAN Connection Pinouts

The WAN interface is an EIA/TIA-232 connector. Only the pins that are connected to the SwitchProbe device (or the tap) are shown in Figure 25.

Figure 25: WAN EIA/TIA-232 Connection Pinouts

EIA/TIA-232 Console and Remote Serial Port Pin Designations

Table 15 shows the EIA/TIA-232 pin designations for the console and remote serial ports.

Table 15: EIA/TIA-232 Console and Remote Serial Port
Pin Designations

Pin	Signal Name	Direction
1	Carrier Detect (DCD)	In
2	Receive Data (RXD)	In
3	Transmit Data (TXD)	Out
4	Data Terminal Ready (DTR)	Out
5	Signal GND	(GND)
6	Data Set Ready (DSR)	In
7	Request To Send (RTS)	Out
8	Clear To Send (CTS)	In
9	Ring Indicator (RI)	In

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Table of Contents

Connecting a Channelized WAN SwitchProbe Deviceto the Network

Connecting a Channelized WAN SwitchProbe Deviceto a Power Source

Connecting a Channelized WAN SwitchProbe Device
to the Network

Connecting a Channelized WAN SwitchProbe Device
to a Power Source