XKL DarkStar DRA, Руководство пользователя

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DarkStar User Guide
4: Troubleshooting
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ator authentication and authorization, console connection, and access issues to external servers, such as SNMP, caused by
invalid IP addressing or other management server connectivity failure.
• Networking Issues. Many networking issues are due to IP addressing problems or changes, and to interruptions in access
to external IP servers. Optical interface problems may be due to faulty fiber connections, or to changes in interface config-
uration on the local or the remote DarkStar system.
4.2.1 System Issues
TABLE 4.1
System Troubleshooting Matrix
Symptom Possible Cause Possible Solution
Operator unable to run
commands. Incorrect authentication or authorization
of operator. Review and revise AAA settings for authen-
tication and authorization. Check
passwords in use.
Operator loses existing
access to commands. Change of passwords.

Warm boot from an older config file may
have re-activated older passwords.
Review and verify operator passwords in
use.
No serial connection / no
activity at console. Faulty cable connection.

Incorrect or faulty cable.
Check connection and reseat if necessary.

Replace with good cable.
Link LED is on, but the
activity LED remains off. Wrong IP address assigned to Ethernet
interface.

Ethernet ports administratively shut down.

Remote routing problems.
In
CONF-ETH[#]
mode,

Use the
ip address
command to
correct addressing issues.

Issue a
no shutdown
command to
restart.
OSC trunk LED dark, OSC
line state flapping/
bouncing. Faulty fiber connection between DarkStar
systems.

OSC interface is administratively down.

Insufficient optical signal to noise ratio in
long--haul configuration.
Clean and reconnect fiber connections.

In
CONF-OSC[#]
mode, issue a
no
shutdown
command.

Contact XKL technical support.
System unreachable via
OSC. No IP address assigned to OSC interface.

Bad or missing IP routes.
In
CONF-OSC[#]
mode, issue an i
p
address
command to correct IP
addressing.
SNMP fails to run. Incorrect SNMP configuration or SNMP
server unreachable. Verify and revise SNMP server IP
address(es).

Verify and revise SNMP configuration.