Cisco SCE 8000 User Manual

8-11
Cisco SCE8000 GBE Installation and Configuration Guide
Chapter 8 Troubleshooting
Problem Solving Using a Subsystems Approach
Troubleshooting the Link Interface Subsystem
See Table 8-8 to help isolate a problem in the link interface subsystem.
In general, the case where no traffic is coming out of the Cisco SCE 8000 is often caused by link
problems or the 10 GBE interface configuration. In some cases, the problem which seems as a transmit
problem could be in the Rx (no traffic is being received by the Cisco SCE 8000 or there is actually no
traffic on the line, which could be a normal situation).
Note In CLI commands for TenGigabitEthernet interfaces, # stands for the number of the SPA module (Cisco
SCE 8000-SIP subslot). This can be 0 through 3.
Problems in the link interface subsystem could be any of the following:
• Link is down. (LINK LED not lit and system status is WARNING)
• Peer does not receive traffic from Cisco SCE 8000. (LINK LED is lit and Tx LED is flashing)
• 10 GBE link is up but not receiving from peer. (LINK LED is lit, but Rx LED is not flashing)
— CLI commands:
• show access-lists
• show ip access-class
Host is not a member of a
valid access list.
See Initial Setup Parameters,
page 5-3.
See the “Configuring Access
Control Lists (ACLs)” section
in Cisco SCE8000 10GBE
Software Configuration
Guide.
Telnet connection terminates
automatically.
CLI commands:
• show line
• show line vty timeout
Telnet connection may be
timing out.
Reconfigure line timeout.
timeout <time in seconds>
Table 8-7 Troubleshooting the Management Subsystem (continued)
Symptom Diagnostic Action Possible Cause Possible Solution
Table 8-8 Troubleshooting the Link Interface Subsystem
Symptom Diagnostic Action Possible Cause Possible Solution
• Link is down. (LINK
LED not lit)
• Output counters not
incrementing.
CLI command:
• show interface
TenGigabitEthernet
3/#/0 counters
Connector is not connected to
the platform or to the network.
Reconnect the fiber to the 10
GBE port and to network.
— — Fiber is broken or damaged. Reconnect or replace the fiber
to the 10 GBE port.
— — Connectivity using external
optic bypass is incorrect or
problematic.
Reconnect or replace the fiber
between the 10 GBE port and
the optic bypass module.

Cisco SCE 8000 Specifications

General

Brand	Cisco
Model	SCE 8000
Category	Switch
Language	English