10-22-2020 09:05 PM
Hi,
In a test lab, I created an EtherChannel as in the below diagram.
Issue: If I create EtherChannel at L2, my PC11 could ping PC12, but when I create the same at L3 (after no switchport, and IP assignment to Port-Channels from the same subnet as PCs keeps) PC11 can't ping to PC12 and vice versa, but switches can ping each other port-channel IPs.
Appreciate any support to understand why is it like this?
Thanks
Solved! Go to Solution.
10-23-2020 12:11 AM
when port-channel layer 2, it is 1 broadcast domain, when you make Layer 3 port-channel now it wll be different broadcast domain.
to reach each other VPC device, you need routing to be in place when you make Layer 3 network example :
switch 3 IP address 10.10.10.3
switch 6 IP address 10.10.10.6
on switch3
ip route 0.0.0.0 0.0.0.0 10.10.10.6
on switch6
ip route 0.0.0.0 0.0.0.0 10.10.10.3
make sure VPC12 have gateway - 10.10.10.6
make sure VPC11 have gateway - 10.10.10.3
10-23-2020 12:11 AM
when port-channel layer 2, it is 1 broadcast domain, when you make Layer 3 port-channel now it wll be different broadcast domain.
to reach each other VPC device, you need routing to be in place when you make Layer 3 network example :
switch 3 IP address 10.10.10.3
switch 6 IP address 10.10.10.6
on switch3
ip route 0.0.0.0 0.0.0.0 10.10.10.6
on switch6
ip route 0.0.0.0 0.0.0.0 10.10.10.3
make sure VPC12 have gateway - 10.10.10.6
make sure VPC11 have gateway - 10.10.10.3
10-23-2020 12:47 AM
Thanks!
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