Cisco SCE8000 Installation And Configuration Guide

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Cisco SCE8000 Installation and Configuration Guide, Rel 3.1.7
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Chapter 8 Troubleshooting
Troubleshooting with the User Log
Troubleshooting with the User Log
The user log is an ASCII file that can be viewed in any editor. It contains a record of system events,
including startup, shutdown and errors. You can use the Logger to view the user log to determine whether
or not the system is functioning properly, as well as for technical support purposes.
• The Logging System, page 8-11
• Generating a File for Technical Support, page 8-13
The Logging System
Events are logged to one of two log files. After a file reaches maximum capacity, the events logged in
that file are then temporarily archived. New events are then automatically logged to the alternate log file.
When the second log file reaches maximum capacity, the system then reverts to logging events to the
first log file, thus overwriting the temporarily archived information stored in that file.
Basic operations include:
• Copying the User Log to an external source
• Viewing the User Log
• Clearing the User Log
• Viewing/clearing the User Log counters
Figure 8-5 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
10GBE port and to network.
Fiber is broken or damaged. Reconnect / replace the fiber
to the 10GBE port.
Connectivity using external
optic bypass is incorrect or
problematic.
Reconnect / replace the fiber
between the 10GBE port and
the optic bypass module.
Temporarily disconnect optic
bypass module and check
operation. See Cabling the
10GBE Line Interface Ports,
page 6-9
Problem with external optic
bypass module.
Replace the optic bypass
module.
• 10GBE link is up
(LINK LED is
continuous green)
• No traffic received
(10GBE interface Rx
LED is not flashing)
No traffic is being transmitted to
the Cisco SCE8000 from its
peers.
Check traffic connection at
peer.

Cisco SCE8000 Specifications

General

Brand	Cisco
Model	SCE8000
Category	Network Hardware
Language	English