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Блок кода
titleСE4
ESR(config)# hostname CE4
ESR(config)# 
ESR(config)# route-map BGP
ESR(config-route-map)#   rule 1
ESR(config-route-map-rule)#   exit
ESR(config-route-map)# exit
ESR(config)# router bgp 65501
ESR(config-bgp)#   neighbor 192.168.4.2
ESR(config-bgp-neighbor)#     remote-as 65500
ESR(config-bgp-neighbor)#     address-family ipv4 unicast
ESR(config-bgp-neighbor-af)#       route-map BGP out
ESR(config-bgp-neighbor-af)#       enable
ESR(config-bgp-neighbor-af)#     exit
ESR(config-bgp-neighbor)#     enable
ESR(config-bgp-neighbor)#   exit
ESR(config-bgp)#   address-family ipv4 unicast
ESR(config-bgp-af)#     network 10.114.0.1/32
ESR(config-bgp-af)#   exit
ESR(config-bgp)#   enable
ESR(config-bgp)# exit
ESR(config)# interface gigabitethernet 1/0/1.100
ESR(config-subif)#   ip firewall disable
ESR(config-subif)#   ip address 192.168.4.1/30
ESR(config-subif)# exit
ESR(config)# 
ESR(config)# interface loopback 1
ESR(config-loopback)#   ip address 10.114.0.1/32
ESR(config-loopback)# exit
ESR(config)# do com 
ESR(config)# do conf

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Произведем настройку PE1 и PE2:

Блок кода
titlePE1
ESR(config)# hostname PE1
ESR(config)# 
ESR(config)# ip vrf CE1
ESR(config-vrf)#   ip protocols bgp max-routes 100
ESR(config-vrf)#   rd 65500:1
ESR(config-vrf)#   route-target export 65500:1
ESR(config-vrf)#   route-target import 65500:1
ESR(config-vrf)# exit
ESR(config)# ip vrf CE2
ESR(config-vrf)#   ip protocols bgp max-routes 100
ESR(config-vrf)#   rd 65500:2
ESR(config-vrf)#   route-target export 65500:2
ESR(config-vrf)#   route-target import 65500:2
ESR(config-vrf)# exit
ESR(config)# 
ESR(config)# system jumbo-frames
ESR(config)# 
ESR(config)# route-map BGP
ESR(config-route-map)#   rule 1
ESR(config-route-map-rule)#   exit
ESR(config-route-map)# exit
ESR(config)# router bgp log-neighbor-changes
ESR(config)# router bgp 65500
ESR(config-bgp)#   neighbor 10.10.1.2
ESR(config-bgp-neighbor)#     remote-as 65500
ESR(config-bgp-neighbor)#     update-source 10.10.1.1
ESR(config-bgp-neighbor)#     address-family vpnv4 unicast
ESR(config-bgp-neighbor-af)#       send-community extended
ESR(config-bgp-neighbor-af)#       enable
ESR(config-bgp-neighbor-af)#     exit
ESR(config-bgp-neighbor)#     enable
ESR(config-bgp-neighbor)#   exit
ESR(config-bgp)#   enable
ESR(config-bgp)#   vrf CE1
ESR(config-bgp-vrf)#     neighbor 192.168.1.1
ESR(config-bgp-vrf-neighbor)#       remote-as 65501
ESR(config-bgp-vrf-neighbor)#       address-family ipv4 unicast
ESR(config-bgp-neighbor-af-vrf)#         route-map BGP out
ESR(config-bgp-neighbor-af-vrf)#         enable
ESR(config-bgp-neighbor-af-vrf)#       exit
ESR(config-bgp-vrf-neighbor)#       enable
ESR(config-bgp-vrf-neighbor)#     exit
ESR(config-bgp-vrf)#     address-family ipv4 unicast
ESR(config-bgp-vrf-af)#       redistribute bgp 65500 route-map BGP
ESR(config-bgp-vrf-af)#     exit
ESR(config-bgp-vrf)#     enable
ESR(config-bgp-vrf)#   exit
ESR(config-bgp)#   vrf CE2
ESR(config-bgp-vrf)#     neighbor 192.168.2.1
ESR(config-bgp-vrf-neighbor)#       remote-as 65501
ESR(config-bgp-vrf-neighbor)#       address-family ipv4 unicast
ESR(config-bgp-neighbor-af-vrf)#         route-map BGP out
ESR(config-bgp-neighbor-af-vrf)#         enable
ESR(config-bgp-neighbor-af-vrf)#       exit
ESR(config-bgp-vrf-neighbor)#       enable
ESR(config-bgp-vrf-neighbor)#     exit
ESR(config-bgp-vrf)#     address-family ipv4 unicast
ESR(config-bgp-vrf-af)#       redistribute bgp 65500 route-map BGP
ESR(config-bgp-vrf-af)#     exit
ESR(config-bgp-vrf)#     enable
ESR(config-bgp-vrf)#   exit
ESR(config-bgp)# exit
ESR(config)# 
ESR(config)# router ospf 1
ESR(config-ospf)#   area 0.0.0.0
ESR(config-ospf-area)#     enable
ESR(config-ospf-area)#   exit
ESR(config-ospf)#   enable
ESR(config-ospf)# exit
ESR(config)# 
ESR(config)# interface gigabitethernet 1/0/1.100
ESR(config-subif)#   ip vrf forwarding CE1
ESR(config-subif)#   description "to CE1"
ESR(config-subif)#   ip firewall disable
ESR(config-subif)#   ip address 192.168.1.2/30
ESR(config-subif)# exit
ESR(config)# interface gigabitethernet 1/0/1.200
ESR(config-subif)#   ip vrf forwarding CE2
ESR(config-subif)#   description "to CE2"
ESR(config-subif)#   ip firewall disable
ESR(config-subif)#   ip address 192.168.2.2/30
ESR(config-subif)# exit
ESR(config)# interface gigabitethernet 1/0/2
ESR(config-if-gi)#   mtu 1522
ESR(config-if-gi)#   ip firewall disable
ESR(config-if-gi)#   ip address 10.100.0.1/30
ESR(config-if-gi)#   ip ospf instance 1
ESR(config-if-gi)#   ip ospf
ESR(config-if-gi)# exit
ESR(config)# interface loopback 1
ESR(config-loopback)#   ip address 10.10.1.1/32
ESR(config-loopback)#   ip ospf instance 1
ESR(config-loopback)#   ip ospf
ESR(config-loopback)# exit
ESR(config)# mpls
ESR(config-mpls)#   ldp
ESR(config-ldp)#     router-id 10.10.1.1
ESR(config-ldp)#     address-family ipv4
ESR(config-ldp-af-ipv4)#       interface gigabitethernet 1/0/2
ESR(config-ldp-af-ipv4-if)#       exit
ESR(config-ldp-af-ipv4)#     exit
ESR(config-ldp)#     enable
ESR(config-ldp)#   exit
ESR(config-mpls)#   forwarding interface gigabitethernet 1/0/2
ESR(config-mpls)# exit
ESR(config)# do com
ESR(config)# do conf

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