I'm implementing QoS and encountered a problem where the router is not recognizing the DSCP information from the LAN.
On the LAN Switch port connected to the router I have:
!
interface GigabitEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
queue-set 2
mls qos trust dscp
auto qos voip trust
!
On the Router I have:
!
class-map match-any VOICE_BEARER_TRAFFIC
match ip dscp ef
class-map match-any VOICE_CONTROL_TRAFFIC
match ip dscp cs3 af31 cs5
!
policy-map WAN_OUT_CHILD
class VOICE_BEARER_TRAFFIC
priority percent 10
class VOICE_CONTROL_TRAFFIC
bandwidth percent 2
class class-default
fair-queue
random-detect
policy-map WAN_OUT_PARENT
class class-default
shape average 1000000
service-policy WAN_OUT_CHILD
!
interface GigabitEthernet0/0
bandwidth 1000
service-policy output WAN_OUT_TSTT_SANDO
!
However, when I do a "show policy int gig0/0" I get:
RTR#sh policy-map interface GigabitEthernet0/0
GigabitEthernet0/0
Service-policy output: WAN_OUT_PARENT
Class-map: class-default (match-any)
343734 packets, 65366192 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: any
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 343721/65278879
shape (average) cir 1000000, bc 4000, be 4000
target shape rate 1000000
Service-policy : WAN_OUT_CHILD
queue stats for all priority classes:
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 0/0
Class-map: VOICE_BEARER_TRAFFIC (match-any)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: ip dscp ef (46)
0 packets, 0 bytes
5 minute rate 0 bps
Priority: 15% (150 kbps), burst bytes 3750, b/w exceed drops: 0
Class-map: VOICE_CONTROL_TRAFFIC (match-any)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: ip dscp cs3 (24) af31 (26) cs5 (40)
0 packets, 0 bytes
5 minute rate 0 bps
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 0/0
bandwidth 3% (30 kbps)
Class-map: class-default (match-any)
239067 packets, 49815430 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: any
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops/flowdrops) 0/0/0/0
(pkts output/bytes output) 239080/49822124
Fair-queue: per-flow queue limit 16
Exp-weight-constant: 9 (1/512)
Mean queue depth: 0 packets
class Transmitted Random drop Tail/Flow drop Minimum Maximum Mark
pkts/bytes pkts/bytes pkts/bytes thresh thresh prob
0 239080/49822124 0/0 0/0 20 40 1/10
1 0/0 0/0 0/0 22 40 1/10
2 0/0 0/0 0/0 24 40 1/10
3 0/0 0/0 0/0 26 40 1/10
4 0/0 0/0 0/0 28 40 1/10
5 0/0 0/0 0/0 30 40 1/10
6 0/0 0/0 0/0 32 40 1/10
7 0/0 0/0 0/0 34 40 1/10
All the traffic is shown in the default class, and nothing is being matched in the traffic classes configured.
If I look at the switch QoS statistics on the port that connected to the router I see classed traffic leaving and entering the switch port.
SW#sh mls qos interface gig0/1 statistics
GigabitEthernet0/1
dscp: incoming
-------------------------------
0 - 4 : 890120760 0 115 0 106
5 - 9 : 0 120 0 7364 0
10 - 14 : 5185 0 4264 0 26
15 - 19 : 0 250 0 1583 0
20 - 24 : 0 0 3803 0 16
25 - 29 : 0 2640 0 3540 0
30 - 34 : 0 0 56928 0 3875576
35 - 39 : 0 4 0 3429 0
40 - 44 : 26086277 42 0 0 0
45 - 49 : 0 195433083 0 13143148 0
50 - 54 : 0 0 0 0 1353
55 - 59 : 0 0 0 0 0
60 - 64 : 0 0 0 3
dscp: outgoing
-------------------------------
0 - 4 : 868314905 0 0 0 286
5 - 9 : 0 0 0 0 0
10 - 14 : 0 0 0 0 0
15 - 19 : 0 1 0 0 0
20 - 24 : 0 0 0 0 0
25 - 29 : 0 0 0 0 0
30 - 34 : 0 0 56916 0 4326017
35 - 39 : 0 0 0 0 0
40 - 44 : 12339636 0 0 0 0
45 - 49 : 0 192006693 0 87391218 0
50 - 54 : 0 0 0 0 358
55 - 59 : 0 0 0 0 0
60 - 64 : 0 0 0 0
cos: incoming
-------------------------------
0 - 4 : 1143645037 0 0 0 0
5 - 7 : 0 0 0
cos: outgoing
-------------------------------
0 - 4 : 934164530 0 1 0 0
5 - 7 : 213672 254270653 7478
What is going on? Why is traffic not being classed or recognised by the router?
Sachin
