From: nikolai (niko@4ovek.com)
Date: Thu Aug 03 2006 - 01:10:48 ART
Per Cisco: "The per-port per-VLAN QoS feature enables you to specify
different QoS configurations on different VLANs on a given interface.
Typically, you will use this feature on trunk or voice VLANs (Cisco IP
Phone) ports, as they belong to multiple VLANs."
***********************************************
mls qos
!
class-map match-all ANY
match access-group 1
!
class-map match-all VLAN
match vlan 1-10
match class-map ANY
!
policy-map VLAN_IP
class VLAN
set precedence 5
!
interface GigabitEthernet0/7
switchport trunk encapsulation dot1q
switchport mode trunk
service-policy input VLAN_IP
!
access-list 1 permit any
**********************************************
SW2#sh policy-map interface GigabitEthernet0/7
GigabitEthernet0/7
Service-policy input: VLAN_IP
Class-map: VLAN (match-all)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: vlan 1-10
Match: class-map match-all ANY
Match: access-group 1
Class-map: class-default (match-any)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: any
0 packets, 0 bytes
5 minute rate 0 bps
********************************************************************
You can apply the service policy inbound on a TRUNK static port (the
example below lists access, though). However, I agree the it might not
work at all on an access port, or a trunk and native VLAN, where there
are no tags. Furthermore, the class-map VLAN is match-all, and we must
match both on VLAN id AND other criteria.
-- nikolai
lenny lim wrote:
> May i know how can you match VLAN on a Access Port ?? Thought VLAN tags
> are only on trunk links....
>
> Thanks
>
>
> */nikolai <niko@4ovek.com>/* wrote:
>
> mls qos
> !
> class-map match-any MATCH_ANY
> match any
>
> class-map match-all VLAN
> match vlan 11 22-24 -> 1st
> match class-map MATCH_ANY -> 2nd
> !
> policy-map VLAN_IP
> class VLAN
> set ip precedence 5
> !
> interface FastEthernet0/1
> switchport access vlan 11
> switchport mode access -> static ACCESS or Trunk only
> service-policy input VLAN_IP -> inbound only
> *****************************************************************
> My understanding is that this feature allows you to match packets
> (policy-map VLAN_IP) on both VLAN ID (class-map match-all VLAN) AND by
> other criteria (class-map match-any MATCH_ANY) on an MLS such as
> Cat3550/3560/3750. The thing I noted is that you can apply the service
> policy inbound on a physical interface only (access or trunk static
> port) - no routed ports, or virtual (logical) interfaces such as SVI.
>
> -- nikolai
>
> Bozhidar Batev wrote:
> > Does anyone can explain me what exactly per-port per-vlan
> classification
> > do. What could be the reason to use it.
> >
> >
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