LACP configure between PA and cisco switch
Active and Active mode and transmission rate: slow
LACP System log::::LACP interface ethernet1/19 moved out of AE-group ae2. Selection state Unselected(Link down)
l2ctrld.log file below
2020-04-12 00:19:25.085 +0400 Got port 82 event, link 0, speed 4, duplex 2
2020-04-12 00:19:25.086 +0400 port 82 is full duplex. Enable lacp
2020-04-12 00:19:25.086 +0400 ethernet1/19 idx 82 mux state change RX_TX=>ATTACHED, select_state Unselected(Link down), partner state 0x3d
2020-04-12 00:19:25.086 +0400 post LACP event to DP: if_idx 82, up 0
2020-04-12 00:19:25.086 +0400 log ethernet1/19 idx 82 leaves lag. sel state Unselected(Link down)
2020-04-12 00:19:25.335 +0400 ethernet1/19 idx 82, mux state change ATTACHED=>DETACHED
2020-04-12 00:20:36.584 +0400 ethernet1/19 idx 82, current_while expired.
2020-04-12 00:20:36.584 +0400 ethernet1/19 idx 82, rx state change CURRENT=>EXPIRED
2020-04-12 00:20:39.584 +0400 ethernet1/19 idx 82, current_while expired.
2020-04-12 00:20:39.584 +0400 ethernet1/19 idx 82, rx state change EXPIRED=>DEFAULTED
2020-04-12 00:23:09.585 +0400 Got port 82 event, link 1, speed 4, duplex 2
2020-04-12 00:23:09.585 +0400 port 82 is full duplex. Enable lacp
what could be the reason for Flapping and how we can resolve
What does it show on the Cisco end? What is the log on the Cisco switch show?
I ran into similar problem in the past, both were related to physical media issues (one time is SFP, one time is fiber jumper)
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