ā04-02-2013 02:54 PM - edited ā03-01-2019 10:57 AM
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
Solved! Go to Solution.
ā04-02-2013 02:59 PM
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
ā04-02-2013 04:26 PM
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
ā04-02-2013 02:56 PM
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
ā04-02-2013 02:59 PM
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
ā04-02-2013 03:28 PM
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
ā04-02-2013 04:26 PM
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
ā04-03-2013 02:00 PM
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.
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