Eth-Trunk has many GE interface, some GE interfaces are Inactive, some GE interfaces are Active, but the state of Eth-Trunk is down.
1、 Display cu, check the lower limit of the trunk interface, is 3.
2 、Display trunkmembership Eth-Trunk, the number of the interface is 5.
3 、The number of UP interface is 2
4、 Executer the command at the interface view “least active-linknumber link-number” to adjust the lower limit as 2, the Eth-trunk is UP.
1 the number of the UP interface in the both end of the Eth-Trunk.
2 the number of the UP interface is less than the lower limit of the Eth-Trunk. (This case is due to this reason)
1 、When the UP number in the eth-trunk is less than the lower limit, the state of Trunk is Down.
2、 When the UP number in the eth-trunk reached the lower limit, the state of Trunk is Up.