Ethernet Switches & Routers

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Occasional Contributor
Posts: 14
Registered: ‎10-18-2011

Cisco 3750 Access switches to Brocade MLX4 Distribution/Core QOS

I am installing Cisco 3750x (stacked) Access switches and will be (cross-stack) trunking them to MLX4's. My question is in regards to QOS on the MLX side....I am trusting DSCP from the Avaya phones (Sig and Voice traffic) and want to preserve their markings across the MLX Core. Could someone please shoot me an MLX example config. I have an idea on what it needs to look like but want some validation if possible.

Thanks in Advance!!!!

Occasional Contributor
Posts: 14
Registered: ‎10-18-2011

Re: Cisco 3750 Access switches to Brocade MLX4 Distribution/Core QOS

Hmmmm....any takers? Still in need of a config example on the MLX side.

Thanks!

DUndernehr

Occasional Contributor
Posts: 14
Registered: ‎10-18-2011

Re: Cisco 3750 Access switches to Brocade MLX4 Distribution/Core QOS

Ok so here is the configuration I am going with on the MLX  (v3.8) side.

Global Config:
qos-tos map cos-dscp 0 8 16 24 32 40 46 56

!
qos-mapping
  dscp decode-map COR_VOIP
    dscp-value 40 to priority 5 drop-precedence 3
    dscp-value 46 to priority 6 drop-precedence 3
  dscp encode-map COR_VOIP
    priority 5 drop-precedence 3 to dscp-value 40
    priority 6 drop-precedence 3 to dscp-value 46
!
VE Config:
qos-tos trust dscp

Anyone see an issue with this config or do you see that I am missing anything from a Brocade perspective?

Thanks in advance!

David

Occasional Contributor
Posts: 14
Registered: ‎10-18-2011

Re: Cisco 3750 Access switches to Brocade MLX4 Distribution/Core QOS

I'm starting to lose faith in Brocade's forums.

Super Contributor
Posts: 1,087
Registered: ‎12-13-2009

Re: Cisco 3750 Access switches to Brocade MLX4 Distribution/Core QOS

Hi dundernehr,

     Sorry for the delay, your config look ok to me, however I did notice you said the MLX is on ver 3.8 (current is 5.1 or 5.2 I think) - might be worth look at updating that.

     Suggets you look at "Configuring Quality of Service for the NetIron XMR and NetIron MLX"  chapter 14 Ver 4.1 (this is the oldest I have here) of The Configuration Guide- Page 511 (PDF page)

Thanks

Michael.

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