H3C S6800 Series Troubleshooting Manual

Also see for S6800 Series: Manual Installation guide Command reference MCE Command Reference Command reference

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19b. If the member ports are down, follow the solution in "Troubleshooting ports" to troubleshootthe problem.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 ofthe member ports.b. Execute the display current-configuration interface command to display theconfigurations of the aggregate interface and the Unselected ports.c. Configure the Unselected ports to make sure they have the same operational key andattribute configurations 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 configurationsas the peer port of the reference port:a. Execute the display current-configuration interface command on the peer device todisplay the configurations of the peer member ports.b. Configure the peer member ports to make sure the peer ports have the same operationalkey and 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 theconfigured maximum number of Selected ports.a. Execute the link-aggregation selected-port maximum command to set the maximumnumber of Selected 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 ofmember ports does not exceed the configured maximum number of Selected ports.If the number of member ports exceeds the maximum number of Selected ports, the portswith higher port numbers are in Unselected state.c. Use the undo port link-aggregation group command to remove undesired member portsfrom the aggregation group.This makes sure all member ports you assign to the aggregation group can becomeSelected ports.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 verbose Display detailed information about the aggregation groupsthat correspond to the existing aggregate interfaces.link-aggregation selected-port maximum Configure the maximum number of Selected ports allowed inan aggregation group.