What is the differenceVN-Link and VM-FEX

[warquezho0612]

I was away on cisco UCS a couple of months from now and this thing still bugs my mind. I was only able to implement a software implementation of ucs using nexus 1000v, assign port profile, port-group, qos, acl on the nk1v

I read before that VN-Link is the hardware implementation it would bypass the hypervisor, where the VM is directly connected to a vNIC. I've heard VM-FEX before but is this doing the same funtion of VN-Link? Just an FYI I was not able to handle UCSM 2.0 and I have only experiece UCSM up to 1.4

Also when Implementing VM-FEX / VN-Link, where can we set the policies that we can set in nexus 1000v like access-list, qos?

[zmeng]

Hi Warquezho0612,

You can reference below docs for your questions:

VN-link concept:

http://www.cisco.com/en/US/solutions/collateral/ns340/ns517/ns224/ns892/ns894/white_paper_c11-525307_ps9902_Products_White_Paper.html

VM-FEX in UCS

http://www.cisco.com/en/US/solutions/collateral/ns340/ns517/ns224/ns944/vm_fex_best_practices_deployment_guide.html

BR,

John Meng

[shemgshemg]

Before UCSM 2.0 releases, VM-FEX was known as VN-Link in Hardware.