Felix888_164906
Aug 13, 2014Nimbostratus
hairpin forwarding on the Nexus switch Show stopper here
Hello everyone:
I have the communication problem between F5 and Nexus switches 5596, which already becomes my show stopper now. Basically I am trunking (LACP) between F5 LTM and Nexus with vPC. All virtual servers created in vCMP guest are not able to be accessed. Also I am unable to ping the self IP of the guest from the host or vice versa. By further investigation, it appears that the Nexus switch discards the ARP, because it doesn't know how to retransmit a frame out the same port on which it was received. I can see here there are lots of success cases of F5/Nexus combination networks. Does anyone has the similar situation during the initial network setup for F5?? Your help will be greatly appreciated.
P.S. the Cisco TAC has been opened, but the case is still under investigation. I would also through a question here in case anyone has known this already. Thanks!