This chapter describes how to use the console interface to monitor the performance of the Cisco Catalyst 1800 Token Ring switch. This chapter contains the following sections:
The Monitor menu allows you to view system status.
Type this command from the Main menu:
Monitor
The Monitor menu appears (see Figure 4-1).
Figure 4-1: Monitor Menu
Cisco Systems Catalyst 1800 Token Ring Switch
Select From
Bridge
FDDI
MAC Addresses
NetBIOS Names
Physical Ports
Serial Port
SRT Statistics
STP Ports
System
Catalyst 1800> Monitor
The following table describes the parameters displayed on the Monitor Bridge Configuration screen and shows where to find additional information.
Table 4-1: Monitor Bridge Menu Selections
The Bridge screen displays bridge-related values.
Type this command from the Main menu:
Monitor Bridge
The Monitor Bridge Configuration screen appears (see Figure 4-2).
Figure 4-2: Monitor Bridge Configuration Screen
Cisco Systems Catalyst 1800 Token Ring Switch
Bridge Configuration
Number of Bridge Ports : 2
STP Protocol Spec. : 802.1d
Bridge Group Address : 0xC00000000100
Spanning-Tree Protocol : Enabled
STP Priority : 0x8001
STP Time Since Change : 0
STP Topology Changes : 1
STP Designated Root : 0x800100a0eeffff00
STP Root Cost : 0
STP Root Port : 0
STP Maximum Age : 20
STP Hello Time : 2
STP Hold Time : 1
STP Forward Delay : 15
Catalyst 1800> Monitor Bridge
The following table describes the parameters displayed on the Monitor Bridge Configuration screen.
Table 4-2: Monitor Bridge Configuration Parameters
| Parameter
| Description
|
|---|
| Number of Bridge Ports
| The current number of bridge ports configured for this node
|
| STP Protocol Spec
| The version of the Spanning-Tree Protocol that is being run on this node
|
| Bridge Group Address
| The current multicast address used in the spanning-tree frames generated by this node
|
| Spanning-Tree Protocol
| The current enabled/disabled state of the Spanning-Tree Protocol
|
| STP Priority
| The current value of the writable portion of the bridge ID, which is the first two octets of the eight-octet long bridge ID
|
| STP Time Since Change
| The time since the last time a topology change was detected by this node
|
| STP Topology Changes
| The total number of topology changes detected by this node since power on
|
| STP Designated Root
| The bridge identifier of the root of the spanning tree as determined by the Spanning-Tree Protocol as executed by this node
|
| STP Root Cost
| The cost of the path to the root as seen from this node
|
| STP Root Port
| The port number of the port that offers the lowest cost path from this node to the root bridge node
|
| STP Maximum Age
| The maximum age of Spanning-Tree Protocol information learned from the network on any port before it is discarded. This value is displayed in seconds.
|
| STP Hello Time
| The amount of time between the transmission of configuration bridge frames by this node on any port when it is the root of the spanning tree or trying to become the root of the spanning tree. This value is displayed in seconds.
|
| STP Hold Time
| This time value determines the interval length during which no more than two configuration bridge frames shall be transmitted by this node. This value is displayed in seconds.
|
| STP Forward Delay
| This time value, displayed in seconds, controls how fast a port changes its spanning state when moving towards the forwarding state. The value determines how long the port stays in each of the listening and learning states, which precede the forwarding state. When a topology change has been detected and is underway, this value is also used to age all dynamic entries in the forwarding database.
|
The MAC Address screen displays all MAC addresses learned by the Catalyst 1800 switch and on which port they were learned. You can select whether you want to display all ports or just one.
If all addresses cannot fit on a single screen, a message appears, stating "more addresses are available." If you reenter a MAC address that was previously displayed, the display resumes where it had left off at the previously issued command.
Type this command from the Main menu:
Monitor MAC port_number
where port_number can either be 0 for all ports or a specific port number. Depending on your system, this number can be between 1 and 8, 1 and 12, or 1 and 16.
The MAC Address Database screen appears (seeFigure 4-3). In this example, the user typed 0 for all ports.
Figure 4-3: MAC Address Database Screen
Cisco Systems Catalyst 1800 Token Ring Switch
MAC Address Database
Port=4 Addr=00-05-77-1b-cb-84
Port=6 Addr=00-05-77-1b-64-fb
Port=5 Addr=00-05-77-1b-b5-6a
Port=7 Addr=00-05-77-1b-b8-47
Catalyst 1800>monitor mac 0
The following table describes the entries on this screen.
Table 4-3: MAC Address Database Entries
| Parameter
| Description
|
|---|
| Port
| The number of the port on which the MAC address was learned
|
| Addr
| The MAC address
|
The NetBIOS Names screen displays the current NetBIOS name caching enable/disable status for each switch port.
Type this command from the Main menu:
Monitor NetBIOS
The Monitor NetBIOS Name Database screen appears (see Figure 4-4).
Figure 4-4: Monitor NetBIOS Name Database
Cisco Systems Catalyst 1800 Token Ring Switch
NetBIOS Name Database
Port=4 Addr= 00-00-F6-1b-c2-29 Name= Netbios-n1
The following table describes the parameters on this screen.
Table 4-4: NetBIOS Parameters
| Parameter
| Description
|
|---|
| Port
| The number of the switch port for this node
|
| Addr
| The source MAC address learned for this entry
|
| Name
| The NetBIOS name learned for this entry
|
The Token Ring Physical Port Statistics screen displays 802.5 MAC layer statistics for the selected port.
Step 1 Type this command from the Main menu:
The system responds:
Step 2 Enter the port number and press Return.
If the port you specified is a Token Ring port, the Token Ring Physical Ports Statistics screen appears (Figure 4-5). (See Figure 4-6 for an example of an FDDI screen.)
Figure 4-5: Token Ring Physical Ports Statistics Screen
Cisco Systems Catalyst 1800 Token Ring Switch
Port Number :1 Segment Number :101(x065)
Speed :16Mb MAC Address(MSB):00-05-77-00-02-01
Ring Status :Opened Ring State :Opened
Receive Transmit
Frames 11255 6734
Octets 5256773 876325
Mcasts 489 332
Errors 0 0
Line Errors 0 Token Errors 0
Burst Errors 0 Soft Errors 0
ACErrors 0 Hard Errors 0
Abort Trans Errs 0 Signal Loss 0
Internal Errs 0 TX Beacons 0
Lost Frames 0 Recoverys 0
RX Congstns 0 Lobe Wires 0
Frm Copy Errs 0 Removes 0
Singles 0 Freq Errors 0
Catalyst 1800> Monitor Physical
The following table describes the parameters on the Token Ring Physical Ports Statistics screen.
Table 4-5: Token Ring Physical Ports Statistics Parameters
| Parameter
| Description
|
|---|
| Port Number
| The specified port number being monitored
|
| Segment Number
| The segment number being monitored
|
| Speed
| The speed of the port, in megabits per second
|
MAC Address
(MSB)
| The MAC address of the specified port
|
| Ring Status
| This object indicates the success or reason for failure, of the most recent attempt of the port to enter the ring. The possible status conditions are
- Bad Parameter
- Ring Beaconing
- Duplicate MAC Address
- Insert Timeout
- Lobe Failure
- Not-Opened
- Opened
- Remove Received
- Request Failed
- Ring Fail
- Signal Loss
- Unknown
|
|
Ring State
| The current interface state with respect to entering or leaving the ring. The possible status conditions are
- Closed
- Closing
- Open Failure
- Opened
- Opening
- Ring Error
- Unknown
|
|
Frames
| The number of LLC frames received/transmitted on this port since powering up. This includes multicast/broadcast frames but does not include error frames.
|
| Octets
| The number of octets (8-bit bytes) received/transmitted on this port since powering up. This includes multicast/broadcast frames but does not include error frames.
|
| Mcasts
| The number of multicast and broadcast frames received/transmitted on the port since powering up. This does not include error frames.
|
| Errors
| Number of total errors found on this port since powering up. This includes physical Token Ring errors, source route errors, and any internal system errors that were found.
|
| Line Errors
| This counter is incremented when a station copies or repeats a frame or token, the E bit is zero in the frame or token, and one of the following conditions exists:
- There is a nondata bit (J or K bit) between the start delimiter (SD) and the end delimiter (ED) of the frame or token.
- There is an FCS error in the frame.
|
|
Burst Errors
| This counter is incremented when a station detects the absence of transitions for five half-bit timers (burst-five error).
|
| ACErrors
| This counter is incremented when a station receives an AMP or SMP frame in which A = C = 0, and then receives another SMP frame with A = C = 0 without first receiving an AMP frame. It denotes a station that cannot set the A and C bits properly.
|
| Abort Trans Errs
| This counter is incremented when a station transmits an abort delimiter.
|
| Internal Errs
| This counter is incremented when a station recognizes an internal error.
|
| Lost Frames
| This counter is incremented when a station is transmitting and its TRR timer expires. This condition denotes a condition in which a transmitting station in strip mode does not receive the trailer of the frame before the TRR timer goes off.
|
| RX Congstns
| This counter is incremented when a station recognizes a frame addressed to it, but there is no available buffer space. This indicates station congestion.
|
| Frm Copy Errs
| This counter is incremented when a station recognizes a frame addressed to its specific address and detects that the frame station (FS) field A bits are set to 1. This indicates a line hit or duplicate address.
|
| Singles
| The number of times the interface has sensed that it is the only station on the ring. This happens if the interface is the first one up on a ring, or if there is a hardware problem.
|
| Token Errors
| This counter is incremented when a station acting as the active monitor recognizes an error condition that needs a token transmitted.
|
| Soft Errors
| The number of soft errors the interface has detected. It directly corresponds to the number of report error MAC frames that this interface has transmitted. Soft errors are those that are recoverable by the MAC layer protocols.
|
| Hard Errors
| The number of times this interface has detected an immediately recoverable fatal error. It denotes the number of times this interface is either transmitting or receiving beacon MAC frames.
|
| Signal Loss
| The number of times this interface has detected the loss of signal condition from the ring
|
| TX Beacons
| The number of times this interface has transmitted a beacon frame
|
| Recoveries
| The number of claim token MAC frames received or transmitted after the interface has received a ring purge MAC frame. This counter signifies the number of times the ring has been purged and is being recovered back into a normal operating state.
|
| Lobe Wires
| The number of times the interface has detected an open or short circuit in the lobe data path. The adapter is closed and dot5RingState signifies this condition.
|
| Removes
| The number of times the interface has received a remove ring station MAC frame request. When this frame is received, the interface enters the close state and dot5RingState signifies this condition.
|
| Freq Errors
| The number of times the interface detects that the frequency of the incoming signal differs from the expected frequency by more than the maximum deviation specified by the IEEE 802.5 standard.
|
If the port number entered on the Physical Port Statistics screen corresponds to the FDDI port, the following screen appears (see Figure 4-6).
Figure 4-6: FDDI Physical Ports Statistics Screen
Cisco Systems Catalyst 1800 Token Ring Switch
Port Number : 5 Segment Number : 102(x066)
Speed : 100Mb MAC Address(MSB) : 00-05-77-00-02-05
Ring State A : Active Ring State B : Active
Receive Transmit
Frames 11255 6734
Octets 5256773 876325
Mcasts 489 332
Errors 0 0
MAC Error Count : 0 MAC Lost Count : 0
LCT Fail Count A : 0 LCT Fail Count B : 0
LEM Reject Count A: 0 LEM Reject Count B: 0
LEM Count A : 0 LEM Count B : 0
Catalyst 1800> Monitor Physical
The following table describes the parameters on the FDDI Physical Ports Statistics screen.
Table 4-6: FDDI Physical Ports Statistics Parameters
| Parameters
| Description
|
|---|
| Port Number
| The number of the port being monitored
|
| Segment Number
| The number of the segment being monitored
|
| Speed
| The current speed at the specified port
|
| MAC Address (MSB)
| The current MAC address
|
| Ring State A & B
| The current interface state with respect to entering or leaving the ring. The possible status conditions are
- Disabled
- Connecting
- Standby
- Active
|
|
Frames
| The number of LLC frames received/transmitted on this port since powering up. This includes multicast/broadcast frames but does not include error frames.
|
| Octets
| The number of octets (8-bit bytes) received/transmitted on this port since powering up. This includes multicast/broadcast frames but does not include error frames.
|
| Mcasts
| The number of multicast and broadcast frames received/transmitted on the port since powering up. This does not include error frames.
|
| Errors
| The number of FDDI errors found on this port
|
| MAC Error Count
| The number of frames detected in error by this MAC
|
| MAC Lost Count
| The number of instances that this MAC detected a format error during frame reception
|
| LCT Fail Count (A & B)
| The number of consecutive times the link confidence test (LCT) has failed during connection management, listed for port A and port B separately
|
LEM Reject Count
(A & B)
| The number of times a link has been rejected, listed for port A and port B separately
|
| LEM Count (A & B)
| The link error monitor error count, listed for port A and port B separately
|
The Serial Port Configuration screen displays the current configuration of the switch console port.
Type this command from the Main menu:
mon se
The Serial Port Configuration screen appears (see Figure 4-7).
Figure 4-7: Serial Port Configuration Screen
Cisco Systems Catalyst 1800 Token Ring Switch
Serial Port Configuration
Type : Console Graphics Mode : Enabled
Speed : 9600 Parity : None
Bits Per Char : 8 Stop Bits : 1
Catalyst 1800> Mon se
The following table describes the parameters listed on the Serial Port Configuration screen.
Table 4-7: Serial Port Configuration Parameters
| Parameter
| Description
|
|---|
| Type
| The type of terminal emulation on the current system, such as ANSI
|
| Speed
| The serial port speed for console operation
|
| Bits Per Char
| The number of bits per character on the serial port for console operation. The options are 7 or 8.
|
| Graphics Mode
| Specifies whether graphics mode is enabled or disabled
|
| Parity
| The parity for console operation. The options are none, even or odd.
|
| Stop Bits
| The number of stop bits for console operation. The options are 1, 1.5, or 2.
|
The SRT Statistics screen displays source route (SR) and source routing transparent (SRT) statistics for the selected port.
Type this command from the Main menu:
Monitor SR
The SRT Statistics screen appears (see Figure 4-8).
Figure 4-8: SRT Statistics Screen
Cisco Systems Catalyst 1800 Token Ring Switch
PortNo: 1 Logical Segment: 101(x065) Speed: 16 Mb
Receive Transmit
SRF 0 0
ARE 0 0
STE 0 0
Segment Mismatches 0
Duplicate Segments 0
Hop Count Exceeded 0
Duplicate LanIds 0
LanId Mismatches 0
SRF Unknowns 0
Catalyst 1800>monitor sr
The following table describes the parameters on the SRT Statistics screen.
Table 4-8: SRT Statistics Parameters
| Parameter
| Description
|
|---|
| PortNo
| The port number being monitored
|
| Logical Segment
| The logical segment number of the port
|
| Speed
| The speed of the port, specified in megabits per second
|
| SRF
| The number of source routed frames, also referred to as specifically routed frames, that the port has received/transmitted on its segment since powering up
|
| ARE
| The number of all routes explorer frames (also referred to as all paths explorer frames) that have been received/transmitted by this port from its segment since powering up
|
| STE
| The number of spanning-tree explorer frames that have been received/transmitted by this port from its segment since powering up
|
| Segment Mismatches
| The number of explorer frames that have been discarded by this port because the routing descriptor field contained an invalid adjacent segment value
|
| Duplicate Segments
| The number of frames that have been discarded by this port since powering up because the routing descriptor field contained a duplicate segment identifier
|
| Hop Count Exceeded
| The number of explorer frames that have been discarded by this port because the Routing Information Field (RIF) has exceeded the maximum route descriptor length
|
| Duplicate LanIds
| The number of duplicate LAN IDs or tree errors. This statistic helps in detection of problems in networks containing older IBM source routing bridges.
|
| LanId Mismatches
| The number of ARE and STE frames that were discarded because the last LAN ID in the Routing Information Field did not equal the LAN-in ID. This error can occur in implementations that only perform a LAN-in ID and bridge number check instead of a LAN-in ID, bridge number, and LAN-out ID check before forwarding broadcast frames.
|
| SRF Unknowns
| The number of Source Routed Frames that are discarded due to invalid RIF data. Examples include RIFs with the same segment number listed multiple times and a RIF with a mismatched bridge number.
|
The STP Port Configuration screen displays STP port related values.
Step 1 Type this command from the Main menu:
The system responds:
Enter logical segment number in hex
Step 2 Enter the segment number in hexadecimal notation and press Return.
The STP Port Configuration screen appears (see Figure 4-9).
Figure 4-9: STP Port Configuration Screen
Cisco Systems Catalyst 1800 Token Ring Switch
STP Port Configuration
STP Port (Segment) : 1 (20)
Physical Ports in Segment : 1 - 4
STP Priority : 0x8000
STP State : Forwarding
STP Enable : Enabled
STP Path Cost : 63
STP Designated Root : 0x800100a0eeffff00
STP Designated Cost : 0
STP Designated Bridge : 0x800100a0eeffff00
STP Designated Port : 0x8000
STP Forward Transitions : 1
Catalyst 1800>monitor stp
The following table describes the parameters listed on the STP Port Configuration screen.
Table 4-9: STP Port Configuration Parameters
| Parameter
| Description
|
|---|
| STP Port (Segment)
| The STP port displayed as a logical bridge port number and the associated segment number
|
| Physical Ports in Segment
| A listing of the physical ports associated with this segment
|
| STP Priority
| The value of the priority field that is contained in the first octet of the two-octet port ID. This octet is the first octet shown on the screen; the second octet is the bridge port number, which is not configurable.
|
| STP State
| The port's current state as defined by the Spanning-Tree Protocol specification. This state controls what action a port takes upon reception of a frame.
The valid states are
- Disabled
- Blocking
- Listening
- Learning
- Forwarding
- Broken
|
|
STP Enable
| The enabled/disabled status of this bridge port
|
| STP Path Cost
| The contribution of this port to the path cost of paths towards the spanning-tree root that includes this port. The spanning-tree specification recommends that this value be in inverse proportion to the speed of the attached LAN.
|
| STP Designated Root
| The unique bridge identifier of this node. It is recorded as the root in the configuration frame transmitted by the destination bridge for the segment to which the port is attached.
|
| STP Designated Cost
| The path cost of the designated port of the segment connected to this port. This value is compared to the root path cost field in received bridge frames.
|
| STP Designated Bridge
| The bridge identifier of the node that this port considers to be the designated bridge for this port's segment
|
| STP Designated Port
| The port identifier of the port on the designated bridge for this port's segment
|
| STP Forward Transitions
| The number of transitions this port has made from the learning state to the forwarding state
|
The System Overview screen displays ring activity for every port.
Type this command from the Main menu:
Monitor System
The System Overview screen appears. Figure 4-10 applies to systems with only Token Ring ports; Figure 4-11 applies to systems with FDDI ports.
Figure 4-10: System Overview Screen
Cisco Systems Catalyst 1800 Token Ring Switch
System Overview
Time : 22:45:34 UpTime: 4 days 23:05:33
Date : Tuesday, 27 June 1996
Port# RingStatus Ring# Frms Rx Frms Tx Errors
1 Opened 101(x065) 0 31 0
2 Opened 101(x065) 31 0 0
3 Opened 101(x065) 0 31 0
4 Opened 101(x065) 0 31 0
5 Opened 101(x065) 0 31 0
6 Opened 101(x065) 0 31 0
7 Opened 101(x065) 0 31 0
8 Opened 101(x065) 0 31 0
Catalyst 1800>monitor system
If you are using the FDU option, the following screen appears (see Figure 4-11). The ports 5A and 5B refer to the FDDI port.
Figure 4-11: System Overview Screen (FDDI)
Cisco Systems Catalyst 1800 Token Ring Switch
System Overview
Time : 22:45:34 UpTime: 4 days 23:05:33
Date : Tuesday, 27 June 1996
Port# RingStatus Ring# Frms Rx Frms Tx Errors
1 Opened 101(x065) 0 31 0
2 Opened 101(x065) 31 0 0
3 Opened 101(x065) 0 31 0
4 Opened 101(x065) 0 31 0
5A Active 101(x066) 0 31 0
5B Active 101(x066) 0 31 0
Catalyst 1800>monitor system
The following table describes the parameters on the System Overview screen:
Table 4-10: System Overview Parameters
| Parameter
| Description
|
|---|
| Time
| The time of the monitoring session
|
| Date
| The date of the monitoring session
|
| Uptime
| The amount of time the system has been operating
|
| Port#
| The number of the port. In the case of FDDI, the ports are 5A and 5B.
|
| RingStatus
| The status of the ring (either opened or closed). For Token Ring, valid values are listed in Table 4-5.
For FDDI, this value indicates the state of the connection. Valid values are
- Active
- Connecting
- Disabled
- Open
- Standby
|
|
Ring#
| The number of the ring
|
| Frms Rx
| The number of frames received at this port since powering up
|
| Frms Tx
| The number of frames transmitted from this port since powering up
|
| Errors
| The amount of communication errors received at this port since powering up. After 4,294,967,295 errors, this counter resets to 1 without notification.
|
