[nsp] IP to ATM CoS

From: Dave O'Meara (dave.omeara@eircom.net)
Date: Tue Apr 16 2002 - 09:49:56 EDT


Hi,

I'm having a problem using CBWFQ (LLQ actually) over a vbr-nrt ATM PVC. IOS is
12.2(8)T1 SP.

here's the config:

class-map match-any BE
  match mpls experimental 0 1
  match ip precedence 0 1
class-map match-any BC
  match mpls experimental 3
  match ip precedence 3
class-map match-any Interactive
  match mpls experimental 5
  match ip precedence 5

policy-map QoS-Policy
  class Interactive
    priority percent 20
  class BC
   bandwidth percent 30
   random-detect
  class BE
   bandwidth percent 50
   random-detect

interface ATM5/0
 description *** ATM port ***
 no ip address
 no ip redirects
 no ip proxy-arp
 shutdown
 atm sonet stm-1
 no atm ilmi-keepalive
 hold-queue 500 in
!
interface ATM5/0.111 point-to-point
 description *** 10Mb PVC ***
 bandwidth 10000
 no ip redirects
 no ip proxy-arp
 tag-switching ip
 pvc testpvc 0/111
  vbr-nrt 10000 10000 1
  oam-pvc manage
  oam retry 3 3 5
  encapsulation aal5mux ip
  service-policy output QoS-Policy
!

PE4# show queue atm 5/0.111
'Show queue' not supported with FIFO queueing.
PE4# show policy-map int atm 5/0.111

PE4#

The 'show queue' command should give something like:

PE4#show queue f3/0
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations 0/0/256 (active/max active/max total)
     Reserved Conversations 3/3 (allocated/max allocated)
     Available Bandwidth 71000 kilobits/sec

Any ideas? The config looks right, according to the Overview and Configuring
docs on the Cisco website. If I attach this same service-policy to an FE
port, for example, I get the expected results, as seen above.

Note that the port is currently shut down. Do I need the port to be active?

Dave



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