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至顶网网络频道用LLQ来实现视频QoS实例

用LLQ来实现视频QoS实例

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作者:vlan9.com 来源:vlan9.com 2008年6月5日

关键字: QoS 服务质量 qos服务质量

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  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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