HP 5500 SI Troubleshooting Manual page 15

a. Unplug and then plug in the network cable of the port.
b. Verify that the port is up.
2. Verify that the port is not shut down:
a. Execute the display interface brief command.
b. Determine whether ADM appears in the second column of the output for the port.
c. If ADM appears, use the undo shutdown command to bring up the port.
3. Verify that the speed and duplex mode of the port match those of the peer port:
a. Execute the display interface brief command.
b. Determine whether the speed and duplex mode of the port match those of the peer port.
c. If they do not match, use the speed command and the duplex command to set the speed and
duplex mode for the port.
4. Examine the network cable quality or verify that the transceiver module type of the fiber port
matches the wavelength:
a. Replace the network cable with a new one, and verify that the port is up.
b. If the port is a fiber port, verify that the transceiver module type of the fiber port matches the
wavelength.
If the transceiver module information is not on the label, use the display transceiver interface
command to display the transceiver module information.
<Sysname>display transceiver interface ten-gigabitethernet 1/1/1
Ten-GigabitEthernet1/1/1 transceiver information:
Transceiver Type
Connector Type
Wavelength(nm)
Transfer Distance(m)
Digital Diagnostic Monitoring : YES
Vendor Name
Ordering Name
5. If the port is on a subcard, verify that the subcard is operating correctly:
a. Execute the display device command.
b. Determine whether Normal appears in the last column of the output for the subcard.
c. If Normal does not appear in the last column, re-plug in the subcard or replace the subcard
with a subcard of the same model.
[Sysname]display device
Slot 1
SubSNo PortNum PCBVer FPGAVer CPLDVer BootRomVer AddrLM Type
0 52
1 2
6. Enable internal loopback testing on the port to verify that the physical port is operating correctly.
[Sysname-GigabitEthernet1/0/2]loopback internal
%Apr 26 12:40:25:309 2000 5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/2: link status is UP
%Apr 26 12:40:25:531 2000 5500 IFNET/4/LINK UPDOWN:
GigabitEthernet1/0/2: link status is DOWN
Loop internal succeeded!
REV.C NULL 007
REV.A NULL NULL
15
: 10G_BASE_SR_SFP
: LC
: 850
: 80(50um),30(62.5um)
: FINISAR CORP.
: SFP_XGE_SX-MM850
607 IVL
NULL IVL
State
MAIN Normal
2*10GE Normal