From: ccie2be (ccie2be@nyc.rr.com)
Date: Mon Aug 30 2004 - 11:51:37 GMT-3
Hi Carlos,
I believe you're not reading/interpreting the task correctly.
The requirement is to have ALL traffic shaped to the specified parameters.
Since ALL traffic is to be shaped that clearly includes the peer to peer
traffic.
Then in task 8.4, you need to police the p2p traffic portion of the traffic
being shaped.
policy-map SHAPE
class class-default
shape average 5000000 160000 80000
service-policy QOS_POLICY
In the above snippet, since "service-policy QOS_POLICY" is within policy-map
SHAPE, what will happen is this:
The p2p traffic will be policed to 8000 bps and all other traffic will be
shaped as specified above.
There are a number of show commands you can use to verify this including
show traffic shape [options], show queue [options].
I suggest you play around with these show commands and make sure you
understand how to interpret the output. Besides the command reference, I
also recommend the Wendall Odom book, Cisco DQOS. ISBN 1-58720-058-9.
He has a bunch of examples of this type along with output from various show
commands which should make this more clear.
HTH, Tim
----- Original Message -----
From: "Carlos G Mendioroz" <tron@huapi.ba.ar>
To: <ccielab@groupstudy.com>
Sent: Monday, August 30, 2004 9:51 AM
Subject: Nested service policies, IEWB Lab 9, Task 8.4
> Task is to control P2P traffic after doing shaping to 5M
> on an interface.
>
> The solution proposed is to nest two service policies, one to do the
> shaping and the other to do the policing.
>
> But I think the policies are reversed.
> The sol goes:
>
> int atm0/0/0
> service-policy SHAPE
>
> policy-map SHAPE
> class class-default
> shape average 5000000 160000 80000
> service-policy QOS_POLICY
>
> policy-map QOS_POLICY
> class P2P
> police cir 8000
>
> It is my understanding that the interface will shape to 5M ALL the
> traffic and then the P2P traffic will be policed, so the link will be
> underutilized (i.e. P2P will not be tx, but nothing else will take the
> place).
>
> Am I wrong ? (Would not be the first time :-)
>
> --
> Carlos G Mendioroz <tron@huapi.ba.ar>
>
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