Port is link down with no apparent reason Investigation of syslog reports:
<165>Oct 25 09:23:01 172.24.254.7 LinkTrapInterface tg.1.103 is Down. <165>Oct 25 09:23:48 172.24.254.7 LinkFlapLINKFLAP VIOLATION: port tg.1.103 DOWN - 5 in 60 seconds
S-Series N-Series K-Series 7100
Linkflap threshold has been exceeded and the port has been taken down due to linkflap configuration
If there is an issue with the link that has caused it to go up/down too many times resolve the physical link issue. If linkflap has been triggered prematurely use the "set linkflap threshold" command in any command mode to increase the number of link flaps that will trigger a link flap action for the specified ports. If you only require notification but to keep the port active then change the action using "set linkflap action"