H3C S6520X-HI Series - Solution

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Solution
To resolve the issue:
1. Verify that no error packets have been received on the local port:
Execute the display interface command and check for error packets.
<Sysname> display interface ten-gigabitethernet 1/0/1
Ten-GigabitEthernet1/0/1
Current state: DOWN
Line protocol state: DOWN
IP packet frame type: Ethernet II, hardware address: 38ad-be30-b9bb
Description: Ten-GigabitEthernet1/0/1 Interface
Bandwidth: 10000000 kbps
Loopback is not set
Media type is not sure, Port hardware type is no connector
Unknown-speed mode, unknown-duplex mode
Link speed type is autonegotiation, link duplex type is autonegotiation
Flow-control is not enabled
Maximum frame length: 10000
Allow jumbo frames to pass
Broadcast max-ratio: 100%
Multicast max-ratio: 100%
Unicast max-ratio: 100%
PVID: 1
MDI type: Automdix
Port link-type: Access
Tagged VLANs: None
Untagged VLANs: 1
Port priority: 0
Last link flapping: Never
Last clearing of counters: Never
Peak value of input: 3 bytes/sec, at 2013-01-01 01:59:12
Peak value of output: 0 bytes/sec, at 2013-01-01 00:01:24
Last 300 seconds input: 0 packets/sec 3 bytes/sec 0%
Last 300 seconds output: 0 packets/sec 0 bytes/sec 0%
Input (total): 17 packets, 2344 bytes
0 unicasts, 4 broadcasts, 13 multicasts, 0 pauses
Input (normal): 17 packets, - bytes
0 unicasts, 4 broadcasts, 13 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): 0 packets, 0 bytes
0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses
Output (normal): 0 packets, - bytes
0 unicasts, 0 broadcasts, 0 multicasts, 0 pauses
Output: 0 output errors, - underruns, - buffer failures
0 aborts, 0 deferred, 0 collisions, 0 late collisions
0 lost carrier, - no carrier