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LTM to Junos LACP Query

Jason_Chapman_3
Nimbostratus
Nimbostratus

Looking for a little assistance please, I work with LACP between LTM's and Cisco often, normally this is quite straight forward and I don't experience issues here. I am trying to bring up a LACP bundle between a Juniper stack and a set of LTM's with the below config, two 10gb interfaces in an interface range linked to a vanilla LAG interface.

 

0691T000006ApkPQAS.png

 

LTM config is below:

 

0691T000006ApkQQAS.png

 

Ideally I'd like both sides Active but have tried various combinations of Active/Passive, periodic slow and fast. No scenario will bring this LAG up, I can't spot what I am doing wrong here, does any one have a working example of LACP to Junos from TMOS they could share?

 

Link details from TMOS are below advise/help appreciated.

 

0691T000006ApkRQAS.png

 

4 REPLIES 4

thistuffjuice_3
Altostratus
Altostratus

Hello

 

Can you provide LACP debug (traceoptions) or log output from your JUNOS switch? Have you also checked your /var/ltm log directory?

 

https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/traceopti...

 

If you enter show lacp interfaces on JUNOS, can you see your interfaces involved in LACP?

 

show interfaces ae20 statistics should also give you some helpful output.

 

VFB
Cirrus
Cirrus

Was there ever a resolution to this issue? I ran into the same problem earlier tonight.

 

Simon_Blakely
F5 Employee
F5 Employee

VFB,

 

What version of BigIP are you running, and on what hardware?

 

VFB
Cirrus
Cirrus

12.1.2 in DMZ and 13 in Core. Both instances have issues with LACP. I noticed when I disabled LACP, the trunk comes up, but still no traffic.