QOS with point to multipoint bridged connections?

[Patrick Beaven]

Ive got two customers that are getting a providers XLAN product that is essentially a point to mulitpoint layer2 bridge.

In the early days Frame-relay used a similiar type of setup and used fram-relay class maps to solve the issues.

How can I setup QOS for one site with 25Mbps while all the other sites have 5Mbps.

I thought I could use a type of layered QOS with the PARENT service policy shaping based on destination class-maps.

then iserting a service-policy inside it. I've tried and I'm getting "Class X requested Bandwidth 300kbps , available only 100kbps"

so apparently this is not the way to solve this problem. I want to be able to average 5Mbps to each branch and also provide a priority class and business essential class. Any Ideas?

[Marwan ALshawi]

What you can do if it's just one interface

Create a parent policy to shape the interface to 25m using class-default

Then create acl per remote site that had the source as the hub network and destination a remote site

Then create a class map per site using the relevant acl created above

Then add new policy map that uses the classes above and user each class police the traffic to 5m

Apply this policy under the parent policy

And then apply the parent policy to the interface in the outbound direction

Hope this help

If helpful rate

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[Patrick Beaven]

This is exactly what I did but when I do I get the "class X requested Bandwidth 300Kbps available only 100kbps"

It references the VOICE class I have setup. So i tried using priority percent unstead of a defined amount and I dont get the error but I suspect its not going to work as expected. Do you know if its possible to have three tiers of embeded QOS on a router? I set the parent policy to shape each site at 5Mbps then used the second level to setup a priority for voice and set percentage for Business applications.

[Marwan ALshawi]

Can you post your config here

[Patrick Beaven]

here is the config:

class-map match-all AVID

match access-group name ACL-AVID

class-map match-all all-shape

match access-group name ACL-ALL

class-map match-all DEB-NET

match access-group name DEB-NET

class-map match-all TWO-NET

match access-group name TWO-NET

class-map match-all WEB

match access-group name ACL-WEB

!

!

policy-map QOS

class AVID

  priority percent 9

  set dscp ef

class WEB

  bandwidth remaining percent 60

  set dscp 41

class class-default

  set dscp default

policy-map alltraffic

class TWO-NET

  shape average 4440000

class DEB-NET

  shape average 100000

  service-policy QOS

!

[Marwan ALshawi]

and where you getting the problem ?

my suggestion was to police the traffic per class/site

example

lets say the hub site IP range is 10.1.1.0/24 link 25M

remote site1 192.168.1.0/24 links 5M

remote site2 192.168.2.0/24 5M

on the hub site

access-list 101 permit ip any 192.168.1.0 0.0.0.255

access-list 102 permit ip any 192.168.2.0 0.0.0.255

class-map site1

match access-group 101

class-map site2

match access-group 102

policy-map PerSiteQoS

class site1

  police cir 5000000

class site2

police cir 5000000

policy-map SHAPE

class class-default

shape avvarge 25000000

service-poicy PerSiteQoS

this way you will shape the interface to 25M and traffic going to each remote site to 5M per site !

not sure if this is what you looking for

[Patrick Beaven]

I see but it doesnt allow for setting up of Class Based traffic shaping for voice and business apps.

The problem with my setup is where you see the 9% for voice. I initially set it up for 310Kbps and thats when it failed with the error i displayed in the first post of the thread. Any suggestions on either a work around or do you recommend not using a specific amount with priority queueing?