Table Of Contents
Connecting Cisco Network Analysis Modules
Network Analysis Module Overview
Connecting Cisco Network Analysis Modules to the Network
Online Insertion and Removal with a Cisco Network Analysis Module
Related Documents
Cisco IOS Software Documentation
Connecting Cisco Network Analysis Modules
This chapter describes how to connect Cisco network analysis modules for modular access routers and contains the following sections:
•
Network Analysis Module Overview
• Online Insertion and Removal with a Cisco Network Analysis Module
• Related Documents
Note The Network Analysis Module (NAM) is available in multiple hardware forms for some Cisco routers and Catalyst switches. This document applies only to the NAM for branch routers, also known as modular access, multiservice, or integrated services routers.
Tip To determine whether your router supports a specific network module, see Table 1-6 on page 1-16.
Network Analysis Module Overview
This section provides information on the network analysis module (NM-NAM). (See Figure 25-1.)
All network modules have an enable (EN) LED. This LED indicates that the module has passed its self-tests and is available to the router.
All network analysis modules display an additional power (PWR) LED, a disk (DISK) LED, and two additional LEDs for the Fast Ethernet port (see Figure 25-1 and Table 25-1).
Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect the network analysis module (NM-NAM) only to intrabuilding or nonexposed wiring or cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends.
Figure 25-1 Cisco Network Analysis Module (NM-NAM) Faceplate and LEDs
Table 25-1 Cisco Network Analysis Module (NM-NAM) LEDs
Callout
|
LED
|
Meaning
|
1
|
DISK
|
There is activity on the hard drive.
|
2
|
LINK
|
The Fast Ethernet connection is available to the network module.
|
3
|
ACT
|
There is activity on the Fast Ethernet connection.
|
4
|
PWR
|
Power is available to the network module.
|
5
|
EN
|
The module has passed self-test and is available to the router.
|
Connecting Cisco Network Analysis Modules to the Network
To connect a network analysis module to the network, use a straight-through 2-pair Category 5 unshielded twisted-pair (UTP) cable to connect the RJ-45 port on the network analysis module to a switch, hub, repeater, server, or other network device. (See Figure 25-2.)
Caution To comply with the Telcordia GR-1089 NEBS standard for electromagnetic compatibility and safety, connect the network analysis module (NM-NAM) only to intrabuilding or nonexposed wiring or cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends.
Note RJ-45 cables are not available from Cisco Systems. These cables are widely available and must be Category 5 cables.
Figure 25-2 Connecting a Cisco Network Analysis Module to a Fast Ethernet Hub
Online Insertion and Removal with a Cisco Network Analysis Module
Some Cisco modular access routers allow you to replace network modules without switching off the router or affecting the operation of other interfaces. This feature is called online insertion and removal (OIR). OIR of network modules provides uninterrupted operation to network users, maintains routing information, and ensures session preservation.
Caution Unlike other network modules, network analysis modules use hard disks. Online removal of disks without proper shutdown can result in file system corruption and might render the disk unusable. The operating system on the network analysis module must be shut down in an orderly fashion before the network module is removed.
Caution Cisco routers support OIR with similar modules only. If you remove a network module, install another module exactly like it in its place. If you remove a two-slot network module (along with any installed WAN or voice interface cards), install another module and card combination exactly like it.
For a description of informational and error messages that may appear on the console during this procedure, see the hardware installation guide for your type of router.
To perform online removal of a network analysis module and insertion of a replacement, follow these steps with the router in privileged EXEC mode:
Step 1 Perform a graceful halt of the network analysis module by using the following command:
Router# service-module analysis-module slot/0 shutdown
Shutdown is used for Online removal of Service Module.
Do you want to proceed with shutdown? [confirm]
Use service module resent command to recover from shutdown
Step 2 Press Enter to confirm the request. Wait for the following status message (it may take a minute or two):
%SERVICEMODULE-5-SHUTDOWN2:Service module NAM-Sensor1/0 shutdown complete
Step 3 Unplug the network interface cable from the network analysis module.
Step 4 Loosen the two captive screws holding the network analysis module in the chassis slot.
Step 5 Remove the network analysis module from the slot.
Step 6 Align the replacement network analysis module with the guides in the chassis slot, and slide it gently into the slot.
Note If the router is not fully configured with network modules, make sure that blank panels fill the unoccupied chassis slots to provide proper airflow.
Step 7 Push the module into place until you feel the edge connector mate securely with the connector on the backplane.
Step 8 Reconnect the network interface cable previously removed in Step 3.
Step 9 Tighten the two captive screws on the faceplate.
Step 10 Reset the network analysis module using the reset command.
Router# service-module analysis-module slot/0 reset
Use reset only to recover from shutdown or failed state
Warning: May lose date on the hard disc!
Do you want to reset?[confirm]
Step 11 Press Enter to confirm the request. The network analysis module resets itself.
Step 12 Check that the network module LEDs are on and that the power and enable LEDs on the front panel also are on. This inspection ensures that connections are secure and that the new unit is operational.
Related Documents
For additional information, see the following documents.
Tip For information on obtaining documentation, see the "Obtaining Documentation" section on page viii. For information on obtaining technical assistance, see the "Obtaining Technical Assistance" section on page xi.
Cisco IOS Software Documentation
For information on Cisco IOS software configuration, see the Network Analysis Module (NM-NAM) document.
