Solution - H3C S5120V3-EI Series Troubleshooting Manual

Solution

To resolve the issue:
1. Verify that no error packets have been received on the local port:
a. Execute the display interface command and check for error packets.
<Sysname>display interface Ten-GigabitEthernet1/0/25
Ten-GigabitEthernet1/0/25 current state: UP
Line protocol state: UP
IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: aa11-2233-4496
......
Last 300 seconds input:
Last 300 seconds output:
Input (total):
Input (normal):
Input:
Output (total): 1440 packets, 475200 bytes
Output (normal): 1440 packets, - bytes
Output: 0 output errors, - underruns, - buffer failures
b. If the statistics are not zero, the following failures might occur:
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c. If the issue persists, contact H3C Support.
2. Verify that packets are not mistakenly filtered out by ACLs:
a. Examine the ACL and QoS policy configurations for packet filtering on the port, on the VLAN
of the port, or globally. If packets are mistakenly filtered out, modify the ACL or QoS policy
configuration.
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1438 packets, 480292 bytes
0 unicasts, 0 broadcasts, 1438 multicasts, 0 pauses
1438 packets, - bytes
0 unicasts, 0 broadcasts, 1438 multicasts, 0 pauses
0 input errors, 0 runts, 0 giants, 0 throttles
0 CRC, 0 frame, - overruns, 0 aborts
- ignored, - parity errors
0 unicasts, 0 broadcasts, 1440 multicasts, 0 pauses
0 unicasts, 0 broadcasts, 1440 multicasts, 0 pauses
0 aborts, 0 deferred, 0 collisions, 0 late collisions
0 lost carrier, - no carrier
Interface hardware failure—To test such a failure, connect the cable that is connected
to the local port to a correctly operating port (for example, Port A) with the same
configurations as the local port. If Port A forwards traffic correctly, you can determine
that the hardware of the local port fails. In this event, you must replace the local port with
a correctly operating port.
Transceiver module, fiber, or twisted pair failure—To test and resolve such a failure,
replace the transceiver module, fiber, or twisted pair with a good one.
Inconsistent configurations—Verify that the configurations (including speed and
duplex mode) of the peer are consistent with the local port. If they are inconsistent,
modify the configurations of the local port.
To display the ACL configuration on the port for packet filtering, execute the display
packet-filter command.
To display the QoS policy configuration on the port, execute the display qos policy
command.
To display the QoS policy configuration on the VLAN of the port, execute the display
qos vlan-policy command.
0 packets/sec 10 bytes/sec 0%
0 packets/sec 10 bytes/sec 0%
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