Apply QoS on Interface

kzhen · ‎04-22-2010

I want to apply the QoS service on the ATM interface, but fail.

Router#

interface ATM0/1/0

bandwidth 2048

no ip address

scrambling-payload

atm vc-per-vp 1024

no atm auto-configuration

no atm ilmi-keepalive

no atm address-registration

no atm ilmi-enable

!

interface ATM0/1/0.1 point-to-point

ip address 192.168.100.1 255.255.255.252

pvc 1/777

oam-pvc manage 0

oam retry 3 5 1

oam ais-rdi 10 3

encapsulation aal5nsap

!

Router(config)#interface ATM0/1/0

Router(config-if)#service-policy output WAN

GTS: Not supported on this interface

Router(config-if)#interface ATM0/1/0.1 point-to-point

Router(config-subif)#service-policy output WAN

GTS: Not supported on this interface

I am not sure why I am not able to apply the service policy on the ATM interface. Please help.

John Blakley · ‎04-22-2010

It's probably a configuration that you have in your policy map. Can you post the configuration of that?

HTH,

John

HTH, John *** Please rate all useful posts ***

ronaldobf · ‎04-22-2010

You will have to apply it to the VC.

Example:

Running-config of the interface:

interface ATM0/1/0.1 point-to-point

ip address 192.168.100.1 255.255.255.252

pvc 1/777

oam-pvc manage 0

oam retry 3 5 1

oam ais-rdi 10 3

encapsulation aal5nsap

service-policy output WAN

To do so:

Router(config-if)#interface ATM0/1/0.1 point-to-point

Router(config-subif)#pvc 1/777

Router(config-if-atm-vc)#service-policy output WAN

A good source:

http://www.digitalvideoheadend.com/en/US/tech/tk39/tk824/technologies_tech_note09186a00800d76b5.shtml

I hope this helps!

Regards,

kzhen · ‎04-23-2010

Hi Mikael,

Here is the show atm vc on the router

Router#show atm pvc

Interface VCD/Name VPI VCI Type Encaps SC Peak Kbps Avg/Min Kbps Burst Cells Sts

0/1/0.1 1 1 777 PVC SNAP UBR 1920 UP

should I apply as the followings

PVC1/777

vbr-nrt 1920 1920 1

service-policy output WAN

Thank you

mlund · ‎04-23-2010

Hi

You haven't configured the vc type, and therefore the router is using it's default, wich is ubr(UnsspecifiedBitRate). You can verify this with "show atm vc".

Because the bitrate is unspecified You can't guarantee any speed.

Try to change to a vbr-rt or vbr-nrt and see if that solves the problem.

Mikael

kzhen · ‎04-23-2010

Hi Mikael,

I applied the change on the router

pvc 1/777

vbr-nrt 1920 1920 1

service-policy output WAN

It didn't show the "servie-policy output WAN" under pvc 1/777 and I didn't get any output from the " show policy-map int atm0/1/0"

Thank you

ronaldobf · ‎04-23-2010

You applied it to the pvc under the subinterface. You issued a command for the physical interface only.

sh policy-map interface ATM0/1/0.1

or

sh policy-map interface ATM0/1/0.1 vc 1/777 [there are several subcommands like outbound, inbound, pvc, etc]

mlund · ‎04-26-2010

Hi

As ronaldobf pointed out, You have to do "sh policy-map interface ATM0/1/0.1"

Here is an example from our routers

interface ATM0/0/IMA0.1 point-to-point
ip address 10.x.x.x 255.255.255.252
pvc 0/35
vbr-rt 9216 4096 1842
service-policy output Core

!

router#sh policy-map interface ATM0/0/IMA0.1
ATM0/0/IMA0.1: VC 0/35 -

Service-policy output: Core

    Class-map: Real-Time (match-any)
      5153073 packets, 454363997 bytes
      5 minute offered rate 0 bps, drop rate 0 bps
      Match: ip dscp cs5 (40) ef (46)
        5153073 packets, 454363997 bytes

/Mikael