no access after migrating vm to n1kv

[Dragomir]

after i migrated a vm to n1kv. the vms cannot get access to the network.

I did a show inte vethernet 109 status and status is up. vlan is correct. other vms on this vlan works just fine.

duplex/speed is auto auto

any idea?

thanks

[Robert Burns]

Tony,

For us to help you, you have to give us the min. details.

-Version of N1K

-Version of ESX

-Topology

By your symptom alone we have no way of narrowing down what the problem could be.

Regards,

Robert

[Robert Burns · Accepted solution]

Have you read through the troubleshooting guide at least?

http://www.cisco.com/en/US/products/ps9902/prod_troubleshooting_guides_list.html

There's plenty of useful commands to start off your investigation.  When you get stuck after reading this guide, you can post the relevant outputs - then we'll be able to assist you.

Robert

[Dragomir]

the version of n1k is

4.2(1)SV2(1.1a)

version of esxi is 5.1

the topology is pretty standard -

vm > n1kv -> ESXi -> UCS  -> FI -> nexus7k

this is a linux vm, other vms on the same vlan and portgroup is forwarding just fine. when i change the portgroup of this vm to a standard dvs switch. it works just fine.

i will look at the doc and see if i can find anything.

thanks

[Robert Burns · Accepted solution]

So VM was working fine on host-1, when moved to host-2 it stopped working.

This tells me you probably have some differences in the VLAN config of your two ESXi hosts.

-Check the allowed VLANs to ensure they're the same on both hosts

-Check the native VLAN (if any) to ensure its the same on boht hosts.

-Are the two ESXi VEMs using the same uplink Port Profile?

My vote is item one is your problem. 

Connect to UCS CLI

connect nxos

show int trunk

- Do you see all the appropriate VLANs allowed on your two hosts vNICs?

Robert

[Dragomir]

I ran that command and the vlan is there. I change the portgroup back to the n1kv vlan and its working now. I guess the intiial vmotion migration from another host into this new esxi host has issues. I do notice sometimes that it take a while for a port to come online when changing from the standard dvs to the n1kv.

thanks for your assistance.