Vpc host mode on fex dual-homed

[l.marrone]

Hi all,

based on pic below

at this time and with current releases of NX-OS for N7k N5k and N1K, is it possible to link Host nr 2 in vPC Host mode (with mac pinning or not) through Nexus 1000v using two fex dual-homed in a double-sided vpc topology ?

All my links are 10G.

Thanks in advance

Liborio

[Robert Burns]

In that configuration, with N2K dual homed to a pair of N5Ks, and the N5Ks dual homed to the N7Ks, the only option you can use with your 1000v uplinks is MAC Pinning.  You can't use any etherchannel at the 1000v level in this case.

Here's a good design guide on N5/N7K design.  You'll read that the host would normally only allow an active/passive connection, but in the case of 1000v and Mac Pinning you can have both host links forwarding.

Regards,

Robert

[l.marrone]

Thanks Robert,

please can you tell me where is guide ?

Best Regards

Liborio

[Robert Burns]

Sorry, must have missed pasting the link.  Here you go.

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/C07-572830-00_Agg_Dsgn_Config_DG.pdf

Regards,

Robert