User guide

2-12 Packet Over SONET Module Installation and User Guide
Installing or Replacing a PoS Module
Identifying Problem Categories
Table 2-1 lists the color states of PoS module and port LEDs and describes their
associated meanings. The STATUS and DIAG LEDs apply to the module as a whole; the
port status LED for each port provides status information about that port.
Table 2-1: PoS Module and Port LEDs
LED Color Indicates Corrective action
STATUS Green blinking
Amber blinking
Off
Normal operation
Configuration error (configured
slot type is different than
inserted module type)
Version error (ExtremeWare
version does not recognize
inserted module)
Version error (the PoS module
image version is not compatible
with the MSM image version)
Hardware error (module failed
diagnostics)
Network processor or GPP
down (as detected by network
processor heartbeat protocol)
No power
(No action required.)
See “Fixing Configuration
Errors” on page 2-13.
See “Upgrading the Switch
Software Image” on
page 2-14.
See “Upgrading the PoS
Module Software Image”
on page 2-14.
See “Identifying Conditions
for Replacing an I/O
Module” on page 2-16.
Reboot slot. If condition
persists, run diagnostics.
See “Fixing Power-Related
Problems” on page 2-15.
DIAG Amber blinking
Amber
Off
Diagnostics in progress
Diagnostics failed
No diagnostics in progress
(No action required.) When
the LED goes off, use the
show diagnostics
{<slot>} command to see
test status.
See “Identifying Conditions
for Replacing an I/O
Module” on page 2-16.
(No action required.)