Rx power low alarm
Rx power low warning
Recent errors:
Receive optical power fault
PMA/PMD receiver local fault
PMA/PMD transmitter local fault
PCS receive local fault
PHY XS transmit local fault
Time stamp : Mon Mar 7 16:26:06 2013
Viewing transceiver information for copper transceivers
with VCT support
This feature provides the ability to view diagnostic monitoring information for copper transceivers with Virtual
Cable Test (VCT) support. The cable quality of the copper cables connected between transceivers can be
ascertained using the transceiver cable diagnostics. Results of the diagnostics are displayed with the appropriate
CLI show commands and with SNMP using the hpicfTransceiver MIB.
The J8177C 1000Base-T Mini-GBIC is supported.
Testing the Cable
Enter the
test cable-diagnostics
command in any context to begin cable diagnostics for the transceiver.
The diagnostic attempts to identify cable faults. The tests may take a few seconds to complete for each interface.
There is the potential of link loss during the diagnostic.
Syntax:
test cable-diagnostics [port-list]
Invokes cable diagnostics and displays the results.
Output from test cable-diagnostics command
Switch # test cable-diagnostics a23-a24
The ‘test cable-diagnostics’ command will cause a loss of link and will take a few seconds per
interface to complete.
Continue (Y/N)? y
MDI Cable Distance Pair Pair MDI
Port Pair Status to Fault Skew Polarity Mode
----- ----- ---------- --------- ----- --------- ------
A23 1-2 OK 0 m 6 ns Normal MDIX
3-6 OK 0 m 0 ns Normal
4-5 OK 0 m 6 ns Normal MDIX
7-8 OK 0 m 6 ns Normal
A24 1-2 Short 2 m
3-6 Impedance 3 m
4-5 Impedance 3 m
7-8 Open 1 m
Copper cable diagnostic test results
switch# show interfaces transceiver a23 detail
Transceiver in A23
Chapter 13 Troubleshooting
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