8-9
Cisco SCE8000 GBE Installation and Configuration Guide
OL-19897-02
Chapter 8 Troubleshooting
Troubleshooting Overview
Troubleshooting the Management Subsystem
Check Table 8-7 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 8-7 Troubleshooting the Management Subsystem
Symptom Diagnostic Action Possible Cause Possible Solution
Management link down:
• Mng LINK LED not lit
• CLI command show
interface
GigabitEthernet 1/1
• ping to management
interface fails
RJ 45 connector is not
connected to the platform or
to the network.
Reconnect the cable to the
GBE port and to network.
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 Setup Parameters,
page 5-2
Refer to “Setting the IP
Address and Subnet Mask of
the Management Interface”
section in the Cisco SCE8000
GBE Software Configuration
Guide.
CLI command
show access-lists
An ACL may be assigned that
denies entry.
See Initial Setup Parameters,
page 5-2
Refer to “Configuring Access
Control Lists (ACLs)” section
in the Cisco SCE8000 GBE
Software Configuration
Guide.
• Telnet connection cannot
be established
• Mng LINK LED is not lit
(link is down)
• CLI command show
interface
GigabitEthernet 1/1
Management interface IP
address or subnet mask is
incorrect.
Check / reconfigure
management port IP address
and subnet mask
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