02-27-2018 05:09 AM - edited 03-01-2019 01:26 PM
Hello!
I have a really weird problem in a UCS solution, it has 2 Fabric Interconnect 6269 connected to 2 Nexus, and IOM's to the Chassis and servers in End Host Mode.
The problem is that I have some Virtual servers that can not be reached from the outside unless the server PING it's default gateway, this problem happens randomly in some servers, they can be reached over SSH and they have connection between other servers on the same VLAN, I thought it was a layer 3 problem with the Nexus, and made a test with a PING with the servers under the fault, and it can not ping it, I've compared the MAC table of the Nexus with the servers but this was not conclusive, I believed it might have been a problem with the nexus loosing the MAC of the servers, or they are not properly doing an ARP request, but I'm not sure on how to do prove this or what else this would be