difference between nego-fail and lacp-up event

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Deepak_K
L3 Networker

difference between nego-fail and lacp-up event

Multiple logs are generated for LACP on passive firewall , but not sure whether this event generated due to layer 1 issue or config issue at switch end. We never faced this king of issue , this log are generated all of a sudden on passive firewall. 

Looking for exact meaning for below events . PFA image

1. Link-down

2. nego-fail

3. lacp-up

 

Deepak_K_0-1601271762681.pngDeepak_K_1-1601271790244.png

there is link-down event on firewall which can be physical port issue , but also nego-fail event also generated for same port so not sure whether the port was down or issue in lacp. This event is occurred 3 times on all interfaces of firewall (eth1 - eth12) , but nego-fail event occurred only for eth1/5 in first occurrence and on eth1/13 on second occurrence. Due to this behavior not able to find exact issue. 

Tags (2)
Abdul-Fattah
L4 Transporter

Hi,

 

maybe this info will be helpful for your troubleshooting:

a "nego-fail" event will not be generated if the Interface is down.

what could make LACP flip up and down like this, is that your Firewall LACP configuration uses Fast Transmission Rate. try using "Slow" Transmission.

 

you can check LACP logs on firewall which are logged during these events in l2ctrld.log, these would be helpful

less mp-log l2ctrld.log

 

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