H3C S5560S-EI Series, Troubleshooting Manual

Page 1: ...0V2 MS4200 Switch Series H3C WS5850 WiNet WS5820 WiNet WS5810 WiNet Switch Series H3C WAS6000 Switch Series Document version 6W103 2020315 Copyright 2020 New H3C Technologies Co Ltd All rights reserve...

Page 2: ...ion 7 USB device anomaly 8 Symptom 8 Solution 8 Interface card anomaly 8 Symptom 8 Solution 8 Related commands 9 Troubleshooting ACL 10 ACL application failure with an error message 10 Symptom 10 Solu...

Page 3: ...25 Layer 2 forwarding failure 25 Symptom 25 Troubleshooting flowchart 25 Solution 26 Related commands 28 Layer 3 forwarding failure 28 Symptom 28 Troubleshooting flowchart 29 Solution 29 Related comma...

Page 4: ...the commands executed during the troubleshooting process To ensure safety wear an ESD wrist strap when you replace or maintain a hardware component If hardware replacement is required use the release...

Page 5: ...vice status CPU status Memory status Configuration status Software entries Hardware entries Collecting common log messages 1 Save the common log messages from the log buffer to a log file By default t...

Page 6: ...collect operating statistics by saving the statistics to a file or displaying the statistics on the screen When you collect operating statistics follow these guidelines Log in to the device through a...

Page 7: ...ne Sysname gunzip diag gz Decompressing file flash diag gz Done Display the statistics in the file Sysname more diag display clock 23 49 53 UTC Tue 01 01 2016 More Contacting technical support If an i...

Page 8: ...tch might use fixed power modules or removable power modules Unexpected switch reboot Symptom The switch reboots unexpectedly when it is operating Troubleshooting flowchart Figure 1 Troubleshooting un...

Page 9: ...y Then execute the display power command to verify that the power module has changed to Normal state b If the power module remains in Absent state remove and reinstall the power module in an empty pow...

Page 10: ...module has changed to Normal state If the power module remains in Absent state go to step b b Remove and install the power module into an empty power module slot Then execute the display power comman...

Page 11: ...for the interface card Jan 1 20 57 42 169 2013 H3C DRVPLAT 4 DrvDebug Subslot 1 can not support this card If the device outputs this message repeatedly determine whether the device supports this inter...

Page 12: ...lists the commands that you might use for troubleshooting hardware Command Description display device manuifo Displays information about the device display device usb Displays operating information a...

Page 13: ...on To resolve the issue 1 Execute the display qos acl resource command and then check the Remaining field for ACL resources insufficiency If this field displays 0 the ACL hardware resources are exhaus...

Page 14: ...tion destination Destination Command Interface display qos policy interface VLAN display qos vlan policy Global display qos policy global b If the QoS policy does not contain a class behavior associat...

Page 15: ...and to check whether the ACL is configured correctly If the ACL is configured incorrectly reconfigure it If the ACL is configured correctly go to step 3 3 If the issue persists contact H3C Support Rel...

Page 16: ...13 Troubleshooting IRF This section provides troubleshooting information for common issues with IRF IRF fabric establishment failure Symptom An IRF fabric cannot be established...

Page 17: ...Yes No Yes No Yes Use models in the same switch series or same group Yes No Is the number of members fewer than the upper limit Assign a unique member ID to each member device Can models join the same...

Page 18: ...at the IRF physical interfaces meet the binding and connection requirements a Verify that the physical interfaces bound to IRF ports can be used as IRF physical interfaces IMPORTANT Make sure all the...

Page 19: ...bound to the IRF port If the field displays DOWN or ADM administratively down for all the physical interfaces remove the link failures or use the undo shutdown command to bring up the administrativel...

Page 20: ...tus of each IRF link display irf configuration Displays basic IRF settings including the current member ID new member ID and physical interfaces bound to the IRF ports on each IRF member device The ne...

Page 21: ...ation This section provides troubleshooting information for common issues with Ethernet link aggregation Link aggregation failure Symptom Some member ports fail to be placed in Selected state and link...

Page 22: ...ilure Solution To resolve the issue 1 Verify that all physical connections are correct You can verify the physical connections against your network plan 2 Verify that all member ports are up a Execute...

Page 23: ...ence port 6 Verify that the number of member ports in the aggregation group does not exceed the configured maximum number of Selected ports a Execute the link aggregation selected port maximum command...

Page 24: ...This section provides troubleshooting information for common port issues A fiber port fails to come up Symptom A fiber port fails to come up Troubleshooting flowchart Figure 5 Troubleshooting link up...

Page 25: ...perating correctly If the port cannot come up you can determine that the local port fails Replace the local port with a new port operating correctly 4 Verify that the transceiver module and cable are...

Page 26: ...the rate and duplex mode for the port 2 Replace the network cable with a new one to verify that the network cable is in good condition 3 Replace the local port with a new one to verify that the local...

Page 27: ...c information Displays or saves running status data for multiple feature modules display interface brief Displays brief interface information display transceiver alarm interface Displays alarms presen...

Page 28: ...ayer 2 packet loss failure Incoming error packets No Yes Yes Troubleshoot the problem End No Yes Layer 2 packet loss Packets filtered by ACLs or QoS policies Troubleshoot the problem Port blocked No T...

Page 29: ...e 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 traffi...

Page 30: ...the port belongs to a smart link group execute the display smart link group command to verify the port status The port cannot forward packets if its state is standby or down If the port is standby co...

Page 31: ...een successfully applied to an interface for packet filtering display qos lr interface Displays the rate limit configuration and statistics on a specified interface or all the interfaces display qos p...

Page 32: ...y mac address command to verify that the output interfaces in the MAC address entries and ARP entries are the same by using the display mac address command If the output interfaces are not the same ex...

Page 33: ...able Displays brief information about active routes in the routing table display mac address Displays MAC address entries Protocol flapping Symptom The switch cannot send or receive protocol packets T...

Page 34: ...NP 0 0 0 100 S On SMAC 8 4 VRRP 0 0 0 1024 S On SMAC 8 5 UNKNOWN_IPV4MC 0 0 0 100 S On SMAC 8 6 UNKNOWN_IPV6MC 0 0 0 100 S On SMAC 8 7 IPV4_MC_RIP 0 0 0 150 D On SMAC 8 8 IPV4_BC_RIP 0 0 0 150 D On SM...

Page 35: ...nformation a Execute the display poe device command in any view to display PSE information and check the faulty field to identify PSE issues Sysname display poe device PSE ID SlotNo SubSNo PortNum Max...

Page 36: ...Remaining Guaranteed 370 W PSE CPLD Version PSE Software Version 390 PSE Hardware Version 57603 PSE Legacy Detection disabled PSE Utilization threshold 80 PSE Pd policy Mode disable PSE PD Disconnect...

Page 37: ...higher wattage supply 3 If the issue persists contact H3C Support Related commands This section lists the commands that you might use for troubleshooting PoE Command Description display poe device Di...