NEC IP8800/S6300 Check the setting of failed port status using, With detail parameter specified

3. Troubleshooting Functional Failures in Operation

No.	Troubleshooting Steps and Command		Action
2	Check the setting of failed port status using	Check the status of each port. If all ports in a link aggregation group are Down, the
	the show channel-group command	link aggregation group is also Down.
	with "detail" parameter specified.	Take the action below for the Down port depending on the Reason displayed.
		•	CH Disabled
			The link aggregation group is Disabled and Down.
		•	Port Down
			The link is down. See "3.4 Network Interface Communication Failure."
		•	Port Speed Unmatch
			Due to mismatch of the line speed on other ports in the link aggregation group,
			a degeneration has occurred. To avoid degeneration, match the speed on all
			ports in the link aggregation group.
		•	Duplex Half
			The mode is Half and the degenerated status has occurred. To avoid degenera-
			tion, set the Duplex mode to Full.
		•	Port Selecting
			Because the port aggregation conditions are being checked, the degeneration
			has occurred. Wait until the check completes. If the degeneration is not recov-
			ered though you wait for a while, check to see the operation status and settings
			of the remote system.
		•	Waiting Partner Synchronization
			The system has finished the port aggregation condition check and is waiting for
			the synchronization of the connected port, so the degeneration has occurred. If
			recovery does not occur after a while, check the remote system operation status
			and settings.
		• Partner System ID Unmatch
			Partner System ID received from the connected port does not match the Partner
			System ID of the group. As a result, the degeneration has occurred. To avoid de-
			generation, check the remote system operation and wiring.
		•	LACPDU Expired
			Since the valid LACPDU time from the connected port has expired, the port has
			degenerated. Check the LACPDU statistics using the show chan-
			nel-group statistics command with "lacp" parameter specified. Also,
			check the remote system operation status.
		•	Partner Key Unmatch
			Since Key received from the connected port does not match Partner Key of the
			group, the degeneration has occurred. To avoid degeneration, check the remote
			system operation and wiring.
		•	Partner Aggregation Individual
			Since link aggregation disabled is received from the connected port, the degen-
			eration has occurred. To avoid degeneration, check the remote system operation
			and settings.
		• Partner Synchronization OUT_OF_SYNC
			Since synchronization disabled is received from the connected port, the degen-
			eration has occurred. (This occurs if configuration is changed on this system or
			the line is blocked on the remote system.)
		•	Port Moved
			The connected port was connected with another port. Check the wiring.
		• Operation of Detach Port Limit
			Since the detached port limiting function is activated, the link aggregation group
			is Down.

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