Fibre Channel (SAN)

Occasional Contributor
Posts: 13
Registered: ‎01-17-2011

DCX blades

Getting ready to install a pair of DCXs with 48 Port blades. Do all the ports provide 8gbits or just a particular group on each blade?

External Moderator
Posts: 5,030
Registered: ‎02-23-2004

Re: DCX blades

FC8- blade all Port support 8G

FC16- blade all Port Support 16G

Regular Contributor
Posts: 201
Registered: ‎11-24-2009

Re: DCX blades

Hi Bill,

as you didn't provide exact models, here are possible cases:

FC8-48 blade in a 8G DCX director: all ports are capable of running 8G; however the backplane connection is 32x8G thus the confguration would be 1.5:1 oversubscribed (48:32) in the worst case scenario. But, because Brocade ASICs utilise "local switching" (switching packets within ASIC ports on a blade wherever possible) the stated theoretical oversubscription rate is not an issue in most setups.

FC8-48 blade in a 16G DCX 8510 director: not supported.

For 16G directors there is another blade called FC8-48E which can run all ports on 8G but has 16G connections to the backplane.

FC8-48E is not supported in 8G DCX directors.

Hope this helps,


Join the Community

Get quick and easy access to valuable resource designed to help you manage your Brocade Network.

vADC is now Pulse Secure
Download FREE NVMe eBook