Table Of Contents - H3C S5560-EI Series Troubleshooting Manual

Contents
Introduction ··································································································································································· 1
General guidelines ···························································································································································· 1
Collecting log and operating information ······················································································································ 1
Collecting common log messages ·························································································································· 2
Collecting diagnostic log messages ······················································································································· 3
Collecting operating statistics ································································································································· 3
Contacting technical support ··········································································································································· 4
Troubleshooting hardware ·········································································································································· 5
Unexpected switch reboot ················································································································································ 5
Symptom ···································································································································································· 5
Troubleshooting flowchart ······································································································································· 6
Solution ······································································································································································ 6
Operating power module failure ····································································································································· 7
Symptom ···································································································································································· 7
Troubleshooting flowchart ······································································································································· 7
Solution ······································································································································································ 7
Newly installed power module failure ···························································································································· 8
Symptom ···································································································································································· 8
Troubleshooting flowchart ······································································································································· 8
Solution ······································································································································································ 8
Fan tray failure ·································································································································································· 9
Symptom ···································································································································································· 9
Troubleshooting flowchart ······································································································································· 9
Solution ······································································································································································ 9
Related commands ························································································································································· 10
Troubleshooting ACL ·················································································································································· 11
ACL application failure with an error message ·········································································································· 11
Symptom ································································································································································· 11
Troubleshooting flowchart ···································································································································· 11
Solution ··································································································································································· 11
ACL application failure without an error message ····································································································· 12
Symptom ································································································································································· 12
Troubleshooting flowchart ···································································································································· 12
Solution ··································································································································································· 12
Packet loss or forwarding failure ·································································································································· 13
Symptom ································································································································································· 13
Troubleshooting flowchart ···································································································································· 14
Solution ··································································································································································· 14
Related commands ························································································································································· 16
Troubleshooting IRF ···················································································································································· 17
IRF fabric establishment failure ····································································································································· 17
Symptom ································································································································································· 17
Troubleshooting flowchart ···································································································································· 18
Solution ··································································································································································· 18
Related commands ························································································································································· 20
Troubleshooting Ethernet link aggregation ··············································································································· 21
Link aggregation failure ················································································································································ 21
i