Need help in intra EPG and

Iqwinder Bir Singh · ‎07-16-2016

Need help in intra EPG and inter EPG communicaton in Cisco ACI. working on network centric approach , BD=EPG=VLAN. created EPG 20 and associated interfaces 104/1/1 (leaf 104 , ip address to host 10.253.20.10) and 105/1/1 (leaf 5, , ip address to host 10.253.20.11). bridge domain subnet 10.253.20.1/24. created application profile etc. links up . both hosts can ping gateway .1 but cannot ping each other. same goes with inter EPG comunication. 10.253.30.10 (EPG 30) can ping gateway of EPG 20 & EPG 30 but not host. contract between EPG established.

need urgent help. thabks

Ganesh Hariharan · ‎07-17-2016

Need help in intra EPG and inter EPG communicaton in Cisco ACI. working on network centric approach , BD=EPG=VLAN. created EPG 20 and associated interfaces 104/1/1 (leaf 104 , ip address to host 10.253.20.10)  and 105/1/1 (leaf 5, , ip address to host 10.253.20.11).  bridge domain subnet 10.253.20.1/24. created application profile etc. links up . both hosts can ping gateway .1 but cannot ping each other. same goes with inter EPG comunication. 10.253.30.10 (EPG 30) can ping gateway of EPG 20 & EPG 30 but not host. contract between EPG established.need urgent help. thabks

Hi,

You don't require Contract for host in same EPG, Have you checked right Port group mapping done at VM level w.r.t EPG bindings.

for Inter EPG You need contract specifying allowing both the subnets and check about the Port group mapping at VMware level for these hosts.

Hope it Helps..

-GI

Iqwinder Bir Singh · ‎07-17-2016

Thanks Ganesh,

I double checked the port groups. from VM host I can ping the gateway defind in BD / EPG and even the other gateway ip address of second EPG.

example : 10.253.20.10 can ping 10.253.20.1 in EPG 20 and 10.253.30.1 in EPG 30 but , it cannot ping 10.253.20.11 in EPG 20.

While troubleshooting , i get ingress forwarding drop packet error. i do not know if i am missing some config , but doesnot seems like.

Ganesh Hariharan · ‎07-19-2016

Hi ,

Ingress forwarding drop packet can be due to bug CSCut65721.

Have a study on the bug details for more clarity and solution.

Hope it Helps..

-GI

INTRA EPG communication Cisco ACI