lacp neg failed for sec then came up

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Announcements

lacp neg failed for sec then came up

Cyber Elite
Cyber Elite

got email alert

 

SYSTEM ALERT : critical : LACP interface ethernet1/21 moved out of AE-group ae1. Selection state Selected

 

system log shows

 

( severity neq informational ) and ( eventid eq nego-fail ) and ( description contains 'LACP interface ethernet1/21 moved out of AE-group ae1. Selection state Selected' ) and ( receive_time leq '2019/03/01 11:50:57' )

 

( receive_time leq '2019/03/01 11:50:57' ) and ( description contains 'LACP interface ethernet1/21 moved into AE-group ae1.' ) and ( eventid eq lacp-up ) and ( subtype eq lacp )

 

I check the switch logs all is good.

 

is there anything i can check on the PA side to know the cause of lap neo fail?

MP

Help the community: Like helpful comments and mark solutions.
6 REPLIES 6

L4 Transporter

Have you verified Layer 1?  I would check your cabling first.  That's a pretty fast flicker if I'm reading your logs correctly.  Also, are you using "lacp fast" or "lacp slow" timers?  You could be mismatched.

Layer 1 is good.

My side is slow.

 

 

MP

Help the community: Like helpful comments and mark solutions.

switch side is fast

MP

Help the community: Like helpful comments and mark solutions.

I would match those then.  Fast/Fast or Slow/Slow.  Those decide the timers on each side of the LACP aggregate and they really should match.

can anyone please confirm this?

 

Fast/Fast or Slow/Slow.  LACP timers should match?

MP

Help the community: Like helpful comments and mark solutions.

Timers do not have to match. If devices have different transmission rates, each uses the rate of its peer.

  • 4147 Views
  • 6 replies
  • 0 Likes
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!