Fixing Power-Related Problems; Fixing Link Down Problems - Extreme Networks PoS Installation And User Manual

Fixing Power-Related Problems

If the LEDs on all other modules are off, verify that the BlackDiamond 6800 series
switch is connected to an appropriate power source and is turned on.
If the LEDs on the new module are off, but the LEDs on other modules are on, try
ejecting and reseating the unpowered module. If the module still does not power up, it
is possible that the available system power is not sufficient to handle the power
requirements of the added module. To test this condition, temporarily eject another I/O
module to see whether that frees enough power to power up the new card. If it does,
you may need to upgrade the power supply configuration in this BlackDiamond 6800
series switch. For more information on system power configuration, see the
BlackDiamond 6800 Series Switch Hardware Installation Guide.

Fixing Link Down Problems

A flashing green port status LED can indicate the following conditions:
• Port is disabled.
• Port is not configured as a member of a VLAN.
To enable a port, use the following command:
enable ports <portlist>
To add a port to a VLAN, use the following command:
config vlan <name> add port <portlist> {tagged | untagged} {nobroadcast}
A flashing amber port status LED indicates that a signal has been detected, but that one
or more SONET alarms exist. Use the
status information.
If the port status LED is off, suspect a loss-of-signal condition caused by a optical-fiber
cable or connector problem. Check for one or more of the following conditions:
• The transmit (Tx) and receive (Rx) cable connectors are reversed in the module port
connector. Remove and reinsert the connectors in their correct positions.
• The optical-fiber cable is not terminated. Verify that the connectors on both ends of
the cable are plugged in correctly and firmly seated.
• The optical-fiber cable is damaged. Replace the cable with a cable known to be good
and try again.
Packet Over SONET Module Installation and User Guide
show sonet detail
Troubleshooting
command to display SONET
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