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16G FC physical function in 20G CNA ?

chuckk281
Trusted Contributor

16G FC physical function in 20G CNA ?

Bibhu had a customer question on Virtual Connect physical function capabilties:

 

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Hi,

 

A customer of mine is asking whether they can carve a 16G FC path and have the  other 3 Ethernet physical functions with a max of 4G bandwidth in the 20G CNA, using VC FF 20/40 Module.

 

My understanding is that the max supported is 8G. Pls advise.

 

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Reply from Vincent:

 

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Right, FCoE connections are limited to 8Gb when you're using an FC fabric on the uplink side of the VC FlexFabric -20/40 F8 module. The module FC uplinks are 8Gb anyway, and FCoE traffic on a downlink will not span multiple FC uplinks, so it wouldn't do any good to be able to carve more than 8Gb for FCoE on the downlinks.

 

If you're using multi-hop FCoE, i.e. your FCoE connection in the server profile is using an FCoE network on the module uplinks and not an FC Fabric, then you can carve up to 20Gb for the FCoE connection.

 

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