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rafaelbn_176840's avatar
rafaelbn_176840
Icon for Altocumulus rankAltocumulus
Feb 07, 2019

BIG-IP CGNAT - VLAN CMP Hash

Hello Devs! How is everybody doing? I'm trying to wrap my head around a requirement for the CGNAT module. Currently, it's mandatory that, for the CGNAT using PBA LSN pools, that the ingress VLAN ...
application delivery
BIG-IP
cgnat
TMOS
rafaelbn's avatar
rafaelbn
Icon for Cirrostratus rankCirrostratus
Feb 07, 2019

After digging a little deeper, I found an article explaining the reasoning.

 

https://support.f5.com/csp/article/K54951499

 

The idea (to my understanding at least) is to optimize the return traffic, kind of pinning the subscriber to the same TMM process. If you don't do that, the returning traffic could be handled by another TMM and both TMM process handling that one subscriber would need to communicate, introducing some delays.

 

Sorry for asking too early! Cheers! Rafael