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H3C Manuals
Network Router
S5560-EI series
Troubleshooting manual
Troubleshooting Ports; Fiber Port Remains In Down State; Symptom - H3C S5560-EI Series Troubleshooting Manual
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Installation manual
(106 pages)
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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Troubleshooting ports
This section provides troubleshooting information for common port problems.
Fiber port remains in down state
Symptom
A fiber port (SFP port, SFP+ port, or QSFP+ port) remains in down state.
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Table of Contents
Troubleshooting
Troubleshooting hardware
9
Troubleshooting flowchart
10
Operating power module failure
11
Newly installed power module failure
12
Fan tray failure
13
Troubleshooting ACL
15
ACL application failure without an error message
16
Troubleshooting flowchart
18
Troubleshooting IRF
21
Troubleshooting flowchart
22
Troubleshooting Ethernet link aggregation
25
Troubleshooting flowchart
26
Troubleshooting ports
29
Troubleshooting flowchart
30
Copper port remains in down state
32
Non-H3C transceiver module
33
Troubleshooting flowchart
35
Error frames (for example, CRC errors) on a port
36
Failure to receive packets
38
Failure to send packets
40
Troubleshooting system management
43
High memory utilization
45
Troubleshooting other problems
47
Troubleshooting flowchart
48
Troubleshooting flowchart
54
Related commands
55
Troubleshooting flowchart
57
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