I was under the impression that the 6500 can only egress police layer 3 interfaces...thus the output service-policy is on the SVI.

http://www.gossamer-threads.com/lists/cisco/nsp/59889

On Mon, 2 Aug 2010, Arie Vayner (avayner) wrote:

Jon,

Do you want to police the traffic on the physical port or on the vlan?
If on the physical port, apply the policy on the port itself...

There is a good chance that in that old IOS there would be a problem
with VLAN counters...

Arie

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Jon Lewis
Sent: Monday, August 02, 2010 20:39
To: [email protected]
Subject: [c-nsp] 6500 policing

I'm having some trouble with policing on a 6500 (sup720-3bxl) on a
WS-X6416-GBIC port.  The port is supposed to be rate-limited to
40mbit/s.
The physical port is configured as a layer 2 port tied to a single vlan
(switchport access vlan ...).  Egress policing is applied to the SVI
port

interface Vlan2006
 service-policy output 40mbit

The policy-map is simply

class-map match-any all
  match ip dscp default
policy-map 40mbit
  class all
     police 40000000 4000000 4000000 conform-action transmit
exceed-action drop

The interface counters really don't make much sense.  show int g...
shows
the physical port is doing 20-25mbit/s in each direction.  show int
vl2006
claims there's no input and 10mbit/s output traffic.  I can live with
the
vlan interface counters being bogus, but what I'm seeing is at
20-25mbit/s
output traffic on the gig port, output packets are being dropped and sh
mls qos ip g... shows policed packets incrementing at a pretty good
rate.

I'm tempted to reconfigure the physical ports as layer 3 ports to see if

that makes any difference.

I'm doing similar policing on other interfaces and can't recall ever
seeing this behavior.

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 Jon Lewis                   |  I route
 Senior Network Engineer     |  therefore you are
 Atlantic Net                |
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----------------------------------------------------------------------
 Jon Lewis                   |  I route
 Senior Network Engineer     |  therefore you are
 Atlantic Net                |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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