Traffic Flow Pattern

[apache_le]

Hi all,

I have this scenario:  2 Bridge Domains (A and B) in ACI have default-gateways outside of the fabric.  In each BD, L3 is not on, flooding is on.  Will traffic from an EPG in BD A to another EPG in BD B traverse outside of fabric to the default-gateways before coming back into the fabric?  Or is it possible that traffic will be switched locally inside the fabric without going outside?  Is there a way to verify this in ACI?  

[Robert Burns]

You kinda answered your own question. If the devices in each EPG are in different IP subnets, and L3 is not enabled on the fabric, it has to exit the fabric to be routed by the Default GW.   Simply look at a traceroute and/or ARP table for the destination address.

Robert