[c-nsp] CBWFQ with Tunnel interface

[Aly, Yasser]

Hi Oliver,

  Platforms involved in this configuration are 3640 running 12.3(12B)
and 2651XM running 12.3(8)T11.



I wonder if I applied a service-policy on the Ethernet input direction
to match on the traffic and set IP prec accordingly. Then, apply another
service-policy under the serial interface on the output direction
matching on the IP prec and set bandwidth and priority commands
accordingly would work? Putting into consideration that a tunnel is
running over the serial interface and qos-preclassify command is applied
under the tunnel interface

What do you think?


-----Original Message-----
From: Oliver Boehmer (oboehmer) [mailto:oboehmer at cisco.com] 
Sent: Friday, January 20, 2006 4:02 PM
To: Aly, Yasser; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] CBWFQ with Tunnel interface

Aly, Yasser <> wrote on Friday, January 20, 2006 11:40 AM:

>   I am working on QoS configs that requires apply CBWFQ on a WAN
> interface to priotorize portion of the bandwidth for voice traffic,
> beside distributing bandwidth over three other classes. The question I
> am looking forward to get an answer for is how to do this under tunnel
> interface? Is it supported to apply under a tunnel interface a policy
> that is used CBWFQ? If not then what are other ways or workarounds to
> achieve this target?

you can do CBWFQ on a Tunnel using hierarchical policies (i.e. shaper at
parent to create the backpressure upon congestion, and then apply CBFWQ
in a child policy), check out
http://www.cisco.com/en/US/tech/tk543/tk545/technologies_tech_note09186a
008017405e.shtml

Which platform are you trying this on?

	oli