04-07-2017 06:58 PM - edited 03-05-2019 08:19 AM
Hello all,
I configured a service policy on port-channel interface (cisco 3945) and when a put the show command the Wred stats is zero.
This is a MQC set and there is access-list and class-map but it was suppressed.
* Config:
policy-map DCA_Congestion_Avoidance_modelo_c_200M
class DCA_police
police 70000000 conform-action set-dscp-transmit af31 exceed-action set-dscp-transmit af13 violate-action set-dscp-transmit af13
policy-map DCL_Congestion_Avoidance_modelo_c_200M
class DCL_police
police 40000000 conform-action set-dscp-transmit af21 exceed-action set-dscp-transmit af12 violate-action set-dscp-transmit af12
policy-map modelo_c_200M
class voz
priority percent 10
police 1000000 conform-action set-dscp-transmit ef exceed-action drop violate-action drop
class video
priority percent 20
police 2000000 conform-action set-dscp-transmit af41 exceed-action drop violate-action drop
class DCA
bandwidth percent 35
random-detect dscp-based
random-detect dscp 14 196 490 5
random-detect dscp 26 294 784
queue-limit 980 packets
service-policy DCA_Congestion_Avoidance_modelo_c_200M
class DCL
bandwidth percent 20
random-detect dscp-based
random-detect dscp 12 102 256 5
random-detect dscp 18 153 409
queue-limit 512 packets
service-policy DCL_Congestion_Avoidance_modelo_c_200M
class class-default
random-detect dscp-based
set ip dscp default
policy-map modelo_c_200M_svi
class class-default
shape average 200000000
service-policy modelo_c_200M
* Applying on interface:
interface Port-channel10.915
bandwidth 200000
encapsulation dot1Q 915
ip address 192.168.161.5 255.255.255.252
ip ospf authentication
ip ospf authentication-key 7 055B531F076A1F5A0C
ip ospf network point-to-point
ip ospf dead-interval 60
ip ospf mtu-ignore
service-policy output modelo_c_200M_svi
*Show command:
Class-map: class-default (match-any)
6829268 packets, 5288225856 bytes
30 second offered rate 2977000 bps, drop rate 0 bps
Match: any
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 0/0
Exp-weight-constant: 9 (1/512)
Mean queue depth: 0 packets
dscp Transmitted Random drop Tail drop Minimum Maximum Mark
pkts/bytes pkts/bytes pkts/bytes thresh thresh prob
QoS Set
dscp default
Packets marked 6829278
Class-map: DCA (match-any)
49933 packets, 17825915 bytes
30 second offered rate 155000 bps, drop rate 0 bps
Match: access-group name citrix_acl
216 packets, 12748 bytes
30 second rate 0 bps
Match: access-group name oam_acl
31241 packets, 12115501 bytes
30 second rate 111000 bps
Match: access-group name svoip_acl
9478 packets, 2264101 bytes
30 second rate 31000 bps
Match: access-group name lbio_acl
0 packets, 0 bytes
30 second rate 0 bps
Match: access-group name gerimp_acl
617 packets, 873302 bytes
30 second rate 0 bps
Match: ip dscp af31 (26)
7037 packets, 1601530 bytes
30 second rate 8000 bps
Match: ip dscp cs3 (24)
776 packets, 547162 bytes
30 second rate 1000 bps
Match: access-group name vipf5acessoweb_acl
0 packets, 0 bytes
30 second rate 0 bps
Match: access-group name vipf5point_acl
0 packets, 0 bytes
30 second rate 0 bps
Match: access-group name vipf5skype_acl
568 packets, 411571 bytes
30 second rate 0 bps
Queueing
queue limit 980 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 0/0
bandwidth 35% (70000 kbps)
Exp-weight-constant: 9 (1/512)
Mean queue depth: 0 packets
dscp Transmitted Random drop Tail drop Minimum Maximum Mark
pkts/bytes pkts/bytes pkts/bytes thresh thresh prob
af13 0/0 0/0 0/0 196 490 1/5
af31 0/0 0/0 0/0 294 784 1/10
I really thank any help.
Solved! Go to Solution.
04-08-2017 12:56 AM
Hello,
the MQC looks good actually. Does it make a difference when you replace the DSCP values withe the corresponding 'af' values:
class DCA
random-detect dscp af13 196 490 5
random-detect dscp af31 294 784
class DCL
random-detect dscp af12 102 256 5
random-detect dscp af21 153 409
That said, WRED would only kick in during congestion...
04-08-2017 12:56 AM
Hello,
the MQC looks good actually. Does it make a difference when you replace the DSCP values withe the corresponding 'af' values:
class DCA
random-detect dscp af13 196 490 5
random-detect dscp af31 294 784
class DCL
random-detect dscp af12 102 256 5
random-detect dscp af21 153 409
That said, WRED would only kick in during congestion...
04-08-2017 06:12 AM
Hello Georg,
Thank you for the response. I tried to change the dscp decimal value but the ios return to them.
It all makes sense when you said about congestion period and I will simulate that and go back the information here.
Thanks.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide