H3C S5560-EI Series Troubleshooting Manual

Also see for S5560-EI series: Installation guide

H3C S5560-EI Series Troubleshooting Manual Manual pdf 27 page image

23b. If the member ports are down, follow the solution in "Troubleshooting ports" to troubleshoot theproblem.3. Verify that the member ports have the same operational key and attribute configurations as thereference port:a. Execute the display link-aggregation verbose command to display the Selected state of themember ports.b. Execute the display current-configuration interface command to display the configurations ofthe aggregate interface and the Unselected ports.c. Configure the Unselected ports to make sure they have the same operational key and attributeconfigurations as the reference port.4. Identify the aggregation mode of the aggregation group.{ If the aggregation mode is static, proceed to step 6.{ If the aggregation mode is dynamic, proceed to step 5.5. Verify that the peer member ports have the same operational key and attribute configurations asthe peer port of the reference port:a. Execute the display current-configuration interface command on the peer device to display theconfigurations of the peer member ports.b. Configure the peer member ports to make sure the peer ports have the same operational keyand attribute configurations as the peer port of the reference port.6. Verify that the number of member ports in the aggregation group does not exceed the configuredmaximum number of Selected ports.a. Execute the link-aggregation selected-port maximum command to set the maximum number ofSelected ports allowed in the aggregation group. The value range is 1 to 16.b. Execute the display link-aggregation verbose command to verify that the number of memberports does not exceed the configured maximum number of Selected ports.If the number of member ports exceeds the maximum number of Selected ports, the ports withhigher port numbers are in Unselected state.c. Use the undo port link-aggregation group command to remove undesired member ports fromthe aggregation group.This makes sure all member ports you assign to the aggregation group can become Selectedports.7. If the problem persists, contact H3C Support.Related commandsThis section lists the commands that you might use for troubleshooting Ethernet link aggregation.Commands Descriptiondisplay current-configuration interface Displays interface configuration.display interface Displays Ethernet interface information.display link-aggregation verboseDisplay detailed information about theaggregation groups that correspond to theexisting aggregate interfaces.