Jumbo Frames on Nexus 5k

[rdotson]

I need to enable jumbo frames on a pair of Nexus 5k's that sit between UCS B chassis and Netapp Storage.  If I enable it globally using service policy, how will it affect other things connected to the 5k's that aren't using jumbo frames?

[stephendrkw]

This may help https://supportforums.cisco.com/document/12168171/configuring-jumbo-mtu-support-nexus-7000-and-5000

[rdotson]

Thanks Stephen, from that it sounds to me that if I enable jumbo frames system wide on the 5k, only devices that are configured on their end will use jumbo frames and devices connected to the switch that are configured for mtu 1500, will still use 1500.

[dangleminh]

Yes, correct.

Switch is enabled to support only if end hosts send a jumbo frame to it :)