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分类: 系统运维

2007-10-28 14:49:34

一个视频Qos配置案例

作者:    

  本例中用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
  class-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
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