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Posted by response3 on May 27, 2008, 7:38 pm
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>
>
> > I've inherited a semi large corporate network and want to get the QoS
> > cleaned up a bit. The current network is a bit of a mess, so I am
> > mostly looking at doing some classification and policing at the WAN
> > routers for the near term solution. This has been done somewhat on the
> > WAN router already, but most of the larger sites have riverbed WAN
> > accelerators, so classifying traffic which isnt already marked with a
> > DSCP value isn't really an option as it all gets sent out over one
> > port to the riverbed device at the destination site.
>
> > This is what I have at one of the sites...
> > LAN <-> 3560 <-> Riverbed <-> Wan Router <-> WAN
>
> > I'd like to do some classification on the 3560, apply DSCP values,
> > have the riverbed pass those through and have the WAN router police on
> > those. The riverbed passes through DSCP values, as my voice traffic
> > that is marked at the phone goes through fine, so that shouldnt be an
> > issue. I tried applying a policy on both the vlan and interfaces on
> > the 3560, but havent had much luck.
>
> > When trying to apply the "service policy input classify" on the port
> > leading to the Riverbed, I get...
> > - Remove policy failed for interface GigabitEthernet0/1 -
>
> > The first thought in my head is that I need CEF on to do 'set' based
> > policies, but I havent applied too much QoS on a L3 switch before, so
> > ya know.
>
> > * * * * * 3560 Config (Abbreviated)* * * * *
> > version 12.2
> > no service pad
> > service timestamps debug datetime localtime
> > service timestamps log datetime localtime
> > service password-encryption
> > !
> > hostname ***agg-sw1
> > !
> > clock timezone EST -5
> > clock summer-time EDT recurring 2 Sun Mar 2:00 1 Sun Nov 2:00
> > vtp mode transparent
> > ip subnet-zero
> > ip routing
> > no ip domain-lookup
> > !
> > mls qos
> > !
> > !
> > class-map match-all medium-priority
> > match access-group name qos-medium-priority
> > class-map match-all high-priority
> > match access-group name qos-high-priority
> > class-map match-any voice
> > match ip dscp ef
> > match access-group name qos-voice
> > !
> > !
> > policy-map classify
> > class voice
> > set dscp ef
> > class high-priority
> > set dscp 31
> > class medium-priority
> > set dscp 21
> > class class-default
> > set dscp default
> > !
> > !
> > !
> > interface GigabitEthernet0/1
> > description WAN
> > switchport access vlan 2
> > speed 1000
> > duplex full
> > priority-queue out
> > mls qos trust dscp
> > !
> > interface GigabitEthernet0/2
> > description Link to Building2
> > switchport access vlan 4
> > speed 100
> > duplex full
> > mls qos trust dscp
> > !
> > !
> > interface Vlan1
> > no ip address
> > shutdown
> > !
> > interface Vlan2
> > description SITE1 WAN
> > ip address 172.20.3.254 255.255.255.0
> > ip pim sparse-mode
> > !
> > interface Vlan4
> > description Link to Building2
> > ip address 172.25.4.2 255.255.255.252
> > ip pim sparse-mode
> > !
> > * * * * *
>
> > Any ideas, or direction on how I can achieve my goal of doing some
> > classification and setting the DSCP field on the 3560?
>
> From Cisco: "Only one ACL per class map and only one match class-map
> configuration command per class map are supported. The ACL can have
> multiple ACEs, which match fields against the contents of the packet."
>
> It's kinda lame, but I think the problem is in your voice class-map.
>
> The easy answer: Auto
QoShttp://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/re...
Sorry, here's the link I found that info in.
http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_44_se/configuration/guide/swqos.html#wp1426811
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