26
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: 0 packets/sec 10 bytes/sec 0%
Last 300 seconds output: 0 packets/sec 10 bytes/sec 0%
Input (total): 1438 packets, 480292 bytes
0 unicasts, 0 broadcasts, 1438 multicasts, 0 pauses
Input (normal): 1438 packets, - bytes
0 unicasts, 0 broadcasts, 1438 multicasts, 0 pauses
Input: 0 input errors, 0 runts, 0 giants, 0 throttles
0 CRC, 0 frame, - overruns, 0 aborts
- ignored, - parity errors
Output (total): 1440 packets, 475200 bytes
0 unicasts, 0 broadcasts, 1440 multicasts, 0 pauses
Output (normal): 1440 packets, - bytes
0 unicasts, 0 broadcasts, 1440 multicasts, 0 pauses
Output: 0 output errors, - underruns, - buffer failures
0 aborts, 0 deferred, 0 collisions, 0 late collisions
0 lost carrier, - no carrier
b.
If the statistics are not zero, the following failures might occur:
−
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.
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.
−
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.
