Hi Joseph,
I used your config for our qos environement which has a diagram below. Central and all branchs connected to ISP/MPLS cloud via metro ethernet lines witch different bandwidths. Central connected 100Mb, other branchs has different bandwidths.
We need QoS both central and branchs for especially voip RTP and signallling traffic. So i used your config but we have some problems.
As you see following outputs Class-map: Branch-A has 1024Kb bw and using 1024Kb bandwitdth but under Service-policy "queue",
Class-map: "realtime" and "signal" using 20000 and 5000Kb bandwidth. Actually i want to use 20% and 5% of 1024Kb.
What is the issue outthere?
Router:Cisco 3845
IOS:c3845-spservicesk9-mz.124-13f.bin
Thanks in advance.
Central_Router#sh policy-map interface g0/0
GigabitEthernet0/0
Service-policy output: central
Class-map: Branch-A (match-all)
133672 packets, 93715046 bytes
5 minute offered rate 372000 bps, drop rate 0 bps
Match: access-group name Branch-A
Traffic Shaping
Target/Average Byte Sustain Excess Interval Increment
Rate Limit bits/int bits/int (ms) (bytes)
100000000/100000000 625000 2500000 2500000 25 312500
Adapt Queue Packets Bytes Packets Bytes Shaping
Active Depth Delayed Delayed Active
- 0 133672 93715046 0 0 no
Queueing
Output Queue: Conversation 265
Bandwidth 1 (%)
Bandwidth 1024 (kbps)Max Threshold 64 (packets)
(pkts matched/bytes matched) 454/409201
(depth/total drops/no-buffer drops) 0/0/0
Service-policy : queue
Class-map: realtime (match-all)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: ip dscp ef (46)
Queueing
Strict Priority
Output Queue: Conversation 264
Bandwidth 20 (%)
Bandwidth 20000 (kbps) Burst 500000 (Bytes)
(pkts matched/bytes matched) 0/0
(total drops/bytes drops) 0/0
Class-map: signal (match-all)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: ip dscp af31 (26)
Queueing
Output Queue: Conversation 265
Bandwidth 5 (%)
Bandwidth 5000 (kbps)Max Threshold 64 (packets)
(pkts matched/bytes matched) 0/0
(depth/total drops/no-buffer drops) 0/0/0
Class-map: class-default (match-any)
133672 packets, 93715046 bytes
!---INPUT-----
!
policy-map mark
class RTP_AUDIO
set ip dscp ef
class SIGNALLING
set ip dscp af31
!
class-map match-any RTP_AUDIO
match access-group name rtp
!
ip access-list extended rtp
permit udp any any range 16384 32767
!
class-map match-any SIGNALLING
match ip dscp cs3
match access-group name signalling
!
ip access-list extended signalling
remark H323
permit tcp any any range 1720 1721
remark SKINNY
permit tcp any any range 2000 2002
permit udp any any range 1720 1721
remark MGCP
permit udp any any eq 2427
remark SIP
permit tcp any any eq 5060
permit udp any any eq 5060
!
!
!----OUTPUT-----
policy-map queue
class realtime
priority percent 20
class signal
bandwidth percent 5
class class-default
fair-queue
!
class-map match-all realtime
match ip dscp ef
!
class-map match-all signal
match ip dscp af31
!
!---OUTPUT with BRANCH-----
!
policy-map central
class Branch-A
shape average 100000000
bandwidth percent 1
service-policy queue
class Branch-B
shape average 100000000
bandwidth percent 1
service-policy queue
class Branch-C
shape average 100000000
bandwidth percent 2
service-policy queue
class Branch-D
shape average 100000000
bandwidth percent 2
service-policy queue
!
class-map match-all Branch-A
match access-group name Branch-A
class-map match-all Branch-B
match access-group name Branch-B
class-map match-all Branch-C
match access-group name Branch-C
class-map match-all Branch-D
match access-group name Branch-D
!
ip access-list extended Branch-A
permit ip any 10.34.128.0 0.0.7.255
ip access-list extended Branch-B
permit ip any 10.34.112.0 0.0.7.255
ip access-list extended Branch-C
permit ip any 10.34.152.0 0.0.7.255
ip access-list extended Branch-D
permit ip any 10.35.144.0 0.0.7.255
!
interface GigabitEthernet0/0
bandwidth 102400
ip address 172.100.0.2 255.255.255.248
service-policy output central
!
interface GigabitEthernet0/1
ip address 172.18.0.2 255.255.255.252
service-policy input mark
!
