03-28-2012 08:13 AM - edited 03-07-2019 05:50 AM
As a test I have enabled a policy-map PM-QOS-LAN on my switch VLAN 'LAN' interface to match packets based on ACL, and set DSCP EF. I can see matches for this policy-map. However when I enable another policy-map PM-QOS-WAN on my switch VLAN 'WAN' interface to match for DSCP EF I can't see any matches.
I can't see what I am doing wrong. Can anyone help thanks?
## Classify traffic & set DSCP EF
ip access-list extended ACL-QOS-LAN
remark Classify traffic
10 permit ip 192.168.16.0 0.0.0.255 192.168.8.0 0.0.0.255
class-map match-any CM-QOS-LAN
match access-group name ACL-QOS
policy-map PM-QOS-LAN
class CM-QOS
set dscp ef
interface vlan 21
description Local Hosts
ip vrf forwarding Test
ip address 192.168.16.254 255.255.255.0
service-policy input PM-QOS-LAN
ip route vrf Test 192.168.8.0 255.255.255.0 192.168.64.1
R1#show policy-map interface vlan 21
Vlan21
Service-policy input: PM-QOS-LAN
Class-map: CM-QOS-LAN (match-any)
724644 packets
Match: access-group name ACL-QOS-LAN
724644 packets
QoS Set
ip dscp ef
Class-map: class-default (match-any)
6586885 packets
Match: any
## See if classification is working
class-map match-any CM-QOS-WAN
match ip dscp ef
policy-map PM-QOS-WAN
class CM-QOS-WAN
interface vlan 11
description WAN
ip vrf forwarding Test
ip address 192.168.64.2 255.255.255.252
service-policy input PM-QOS-WAN
service-policy output PM-QOS-WAN
R1#sh policy-map interface vlan 11
Vlan11
Service-policy input: PM-QOS-WAN
Class-map: CM-QOS-WAN (match-any)
0 packets
Match: ip dscp ef
0 packets
Class-map: class-default (match-any)
9734258 packets
Match: any
Service-policy output: PM-QOS-WAN
Class-map: CM-QOS-WAN (match-any)
0 packets
Match: ip dscp ef
0 packets
Class-map: class-default (match-any)
6536248 packets
Match: any
03-28-2012 08:54 AM
Well I'm not sure why I'm not matching packets for DSCP on the switch WAN interface, but I've enabled an identical policy map on the WAN interface of the next hop device and I can see packets being matched just fine.
03-28-2012 09:59 AM
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Switches? Often policy-maps are very restricted on switches vs. software routers.
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