N1k with MS NLB in hyper-v

[Mahmoud]

we have a nexus 1000v and hyper-v .we are trying to make  a load balance between  two VMs at a hyper-v to work with nexus port-profile 

I used the blow config for port-profile

port-profile type vethernet MS_Load_Balance
no mac auto-static-learn
no shutdown
guid 426dfa42-73ff-4f26-8af0-9918e96575a
max-ports 1024
state enabled
publish port-profile

and the config of the vethe of the two NICs of VM

interface Vethernet177
inherit port-profile dynpp_641ecc76-990d-4da-a445-6e311dcf182f_7879f0a4-723c-459e-a029-e2142bbe1e8e
description -WLB-01, Network Adapter
no mac auto-static-learn
switchport uufb disable
dvport uuid "24d9e687-6979-4725-bd50-ee98ccd5367c--26f75fc2-ec69-43f0-b26b-68eb28ce19b9"
no shutdown

when I tried to reload one of the two VMs it loss the ping and connectivity from the NLB and got the error 

[Qiese Dides · Accepted solution]

Hi Mahmoud,

Try the following workaround;

1. Login to a VM that will be part of the NLB Cluster

2. After Logging in, choose the veth adapter that will be part of NLB clustering and change the MTU to 9014 from Networking Properties.

This is due to the fact that MS NLB protocol will not bind to the adapter unless configurd to use the legacy network adapter (vs standard network adapter).

Also a great link to solve this solution is below if the above doesn't work.

http://retrohack.com/nlb-the-interface-is-misconfigured/

If you have any other questions please let me know.

Regards,

Qiese Dides

[Mahmoud]

Hello Qiese Dides,

thank you so much for your post ,it worked fine now 

appreciate your help

[Qiese Dides]

Pleasure is all mine. Glad I could help hope you enjoy your week.

Regards,

Qiese Dides