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The Physical Status of the Member Interface Is Up But the Link Protocol Status Is Down Because Link Aggregation Is Not Configured on the Remote End
Fault Description
SwitchA is configured with link aggregation, but SwitchB is not configured with link aggregation. As a result, the physical status of the member interface on SwitchA is Up but the link protocol status is Down.
Procedure
- Run the display this command on 10GE1/0/1, 10GE1/0/2, and 10GE1/0/3 of SwitchB. The three interfaces do no join the Eth-Trunk.
If interfaces join the Eth-Trunk, you can view the following configuration in the command output.
# interface 10GE1/0/1 eth-trunk 1 #
- On SwitchB, configure the same link aggregation mode as SwitchA. For details, see Configuring Link Aggregation in Manual Load Balancing Mode or Configuring Link Aggregation in LACP Mode.