RE: 3560 QoS weirdness

From: Shine Joseph (shinepjoseph@iprimus.com.au)
Date: Sun Mar 30 2008 - 18:36:34 ART


Keith,

I think it is the IOS help in the version you are running. My switch DOES'T
displays the help as you mentioned. Please see below:

SW1(config)#do sh ver
Cisco IOS Software, C3550 Software (C3550-IPSERVICESK9-M), Version
12.2(25)SEE1,
 RELEASE SOFTWARE (fc1)

SW1(config)#mls qos map cos-dscp ?
  <0-63> 8 dscp values separated by spaces

Update your IOS :)

Regards,
Shine

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
keith tokash
Sent: Monday, 31 March 2008 7:41 AM
To: ccielab@groupstudy.com
Subject: 3560 QoS weirdness

Interesting command here:

Cat-1(config)#mls qos map cos-dscp ?
  <0-63> CoS values separated by spaces (up to 8 values total)

Hrm. CoS values don't go up to 63, DSCP values do. After playing with the
command a little I confirmed that they *are* looking for DSCP values here.

Cat-1(config)#do sh mls qos map Cos-dscp
   Cos-dscp map:
        cos: 0 1 2 3 4 5 6 7
     --------------------------------
       dscp: 0 8 16 24 32 40 48 56

Cat-1(config)#mls qos map cos-dscp 0 1 2 3 4 5 6 7
Cat-1(config)#do sh mls qos map Cos-dscp
   Cos-dscp map:
        cos: 0 1 2 3 4 5 6 7
     --------------------------------
       dscp: 0 1 2 3 4 5 6 7

So whatever you enter here changes the DSCP values. My question is simply
...
is there a reason for this or is it just a typo in the IOS? Maybe I'm
missing
something, but the context-sensitive help looks to be leading the
bit-flinger
directly down the wrong path. If there's a reason I'd really like the
enlightenment.

With a few exceptions, secrecy is deeply incompatible with democracy and
with
science.
        --Carl Sagan



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