视频Qos配置案例

本例中才用LLQ来实现Video的QoS
中心点 : Router 1(7507)
In between router : Router 2(3640)
Remote side : Router 3(2620)

中心点: Router 1

class-map match-all OFIS_TO_MCU
match access-group 100
c lass-map match-all MCU_TO_OFIS
match access-group 101
!
policy-map TO_MCU //定义LLQ策略
class OFIS_TO_MCU
priority 1518 //定义为Video预留的带宽，注意要在视频带宽基础上加上25%的开销
set ip precedence 5
class class-default
fair-queue
policy-map TO_OFIS
class MCU_TO_OFIS
priority 1518
set ip precedence 5
class class-default
fair-queue
!
interface FastEthernet1/0/0
no ip address
no ip route-cache distributed
full-duplex
!
interface FastEthernet1/0/0.1
description HQ1 LAN
encapsulation dot1Q 1
ip address 129.2.80.21 255.255.0.0
service-policy output TO_MCU //在接口下应用策略
!
interface Serial1/0/0
description Router 1 to ROUTER 2
ip address 206.141.24.1 255.255.255.0
ip route-cache policy
no ip route-cache distributed
service-policy output TO_OFIS
!
access-list 100 permit ip host 141.2.20.20 host 129.2.20.34 precedence critical//通过ACL匹配来激活策略
access-list 101 permit ip host 129.2.20.34 host 141.2.20.20 precedence critical
!

-------------------------------------------------------------------------------------------------

In between router : Router 2

class-map OFIS_TO_MCU
match access-group 100
class-map MCU_TO_OFIS
match access-group 101
!
!
policy-map TO_MCU
class OFIS_TO_MCU
priority 1518
class class-default
fair-queue
policy-map TO_OFIS
class MCU_TO_OFIS
priority 1518
class class-default
fair-queue

!
interface Serial2/0
description Router 2 to Router 1
bandwidth 2048
ip address 206.141.24.2 255.255.255.0
no ip directed-broadcast
ip route-cache policy
no ip mroute-cache
service-policy output TO_MCU

!
interface Serial2/1
description Router 2 to Router 3
bandwidth 2048
ip address 218.141.2.1 255.255.255.0
no ip directed-broadcast
ip route-cache policy
service-policy output TO_OFIS
!
access-list 100 permit ip host 141.2.20.20 host 129.2.20.34 precedence critical
access-list 101 permit ip host 129.2.20.34 host 141.2.20.20 precedence critical

----------------------------------------------------------------------------------------------------

Remote side : Router 3

class-map OFIS_TO_MCU
match access-group 100
class-map MCU_TO_OFIS
match access-group 101
!
!
policy-map TO_MCU
class OFIS_TO_MCU
priority 1518
class class-default
fair-queue
policy-map TO_OFIS
class MCU_TO_OFIS
priority 1518
class class-default
fair-queue
!
interface FastEthernet0/0
ip address 141.2.81.20 255.255.0.0
no ip directed-broadcast
ip route-cache policy
speed 100
full-duplex
!
interface Serial0/0
description Router 3 To Router 2
bandwidth 2048
ip address 218.141.2.2 255.255.255.0
no ip directed-broadcast
ip route-cache policy
no ip mroute-cache
service-policy output TO_MCU
!
access-list 100 permit ip host 141.2.20.20 host 129.2.20.34 precedence critical
access-list 101 permit ip host 129.2.20.34 host 141.2.20.20 precedence critical