Ethernet Fabric (VDX, CNA)

Posts: 48
Registered: ‎02-27-2012



as i know CoS on VDX has some pre-definitions - CoS 3 is reserved for FCOE (big Thresholds and 40% Bandwith DWRR) and CoS 7 Used for "Fabric" with Strict Prio and also nice Buffers/High Thresholds. 

But what is CoS 6 normally used for? Normally reserved also for Network Protocols but if i running VDX all Routing and TRILL should use 7 ?

What i need to know is how big i have to define the Buffers and Weight in a "normal" Native VDX enviroment - i think 25% Buffers and weight 60 in default is a little bit high for that ?!


Thanks for feedback

Posts: 48
Registered: ‎02-27-2012

Re: VDX Qos

As i found out - per default all Fabric ISLs provide TC6 Traffic - "CEE Map _vcs_cee" and normal "default-ports" use TC1. But i am not really familiar and started testing. It would be helpful if anyone has already configured qos on VCS-VDX and post some more infos that are not in the admin guide :-)


Thanks in advance

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