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Chapter 8 Troubleshooting
Problem Solving Using a Subsystems Approach
SCE 2000 4xGBE Installation and Configuration Guide
8-12 OL-7824-02
Troubleshooting the Management Subsystem
Check the following to help isolate a problem in the management subsystem.
Problems in the management subsystem could be any of the following:
• Management link is down. (Mng LINK LED not lit--also Status is WARNING)
• Management link is up (Mng LINK LED lit) but does not answer ping
• Telnet connection cannot be established due to link problems (Mng LINK LED not lit)
• Management link is up (Mng LINK LED lit) but Telnet connection cannot be established
• Telnet connection established, but terminates automatically
Note
When the management link is down and/or a Telnet connection cannot be established, you must open a
CLI session on a local terminal connected to the CON port. This enables you to solve the problem and
then reconnect through the management port.
Table 8-6 Troubleshooting the Management Subsystem
Symptom Diagnostic Action Possible Cause Possible Solution
Management link down:
• Mng LINK LED not
lit
• Status is WARNING
(Status LED is
flashing orange)
• CLI command
show interface
FastEthernet 0/0
• ping to
management
interface fails
RJ 45 connector is not
connected to the platform or
to the network
Reconnect the cable to the Mng
1 port and to network.
Cable is connected to Mng 2
port.
Reconnect the cable to the Mng
1 port.
Cable is broken Check / Replace the cable.
Management link up:
• Mng LINK LED is lit
• ping to
management interface
fails
CLI commands
• show ip route
• show ip default-
gateway
One of the following
configurations may be wrong:
IP address / subnet mask
IP default gateway
See Initial System Configuration
(on page 5-3)
Refer to "IP Configuration" in
the Cisco SCE 2000 4xGBE
Software Configuration Guide.
CLI command
show access-lists
An ACL may be assigned
that denies entry.
See Initial System Configuration
(on page 5-3)
Refer to "Access Control Lists"
in the Cisco SCE 2000 4xGBE
Software Configuration Guide.
• Telnet connection
cannot be established
• Mng LINK LED is
not lit (link is down)
• CLI command
show interface
FastEthernet 0/0
Management interface IP
address or subnet mask is
incorrect
Check / reconfigure
management port IP address and
subnet mask