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ESR(config)# hostname ASBR2
ESR(config)#
ESR(config)# ip vrf CE1
ESR(config-vrf)# ip protocols ospf 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 ospf 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)# vlan 100,200
ESR(config-vlan)# exit
ESR(config)#
ESR(config)# router bgp 65500
ESR(config-bgp)# router-id 10.11.1.2
ESR(config-bgp)# neighbor 10.11.1.1
ESR(config-bgp-neighbor)# remote-as 65500
ESR(config-bgp-neighbor)# update-source 10.11.1.2
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)# address-family ipv4 unicast
ESR(config-bgp-vrf-af)# redistribute ospf 1 intra-area inter-area external1 external2
ESR(config-bgp-vrf-af)# exit
ESR(config-bgp-vrf)# exit
ESR(config-bgp)# vrf CE2
ESR(config-bgp-vrf)# address-family ipv4 unicast
ESR(config-bgp-vrf-af)# redistribute ospf 1 intra-area inter-area external1 external2
ESR(config-bgp-vrf-af)# exit
ESR(config-bgp-vrf)# exit
ESR(config-bgp)# exit
ESR(config)#
ESR(config)# router ospf log-adjacency-changes
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)# router ospf 1 vrf CE1
ESR(config-ospf)# redistribute bgp 65500
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)# router ospf 1 vrf CE2
ESR(config-ospf)# redistribute bgp 65500
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)# bridge 10
ESR(config-bridge)# ip vrf forwarding CE1
ESR(config-bridge)# vlan 100
ESR(config-bridge)# ip firewall disable
ESR(config-bridge)# ip address 172.16.32.2/30
ESR(config-bridge)# ip ospf instance 1
ESR(config-bridge)# ip ospf
ESR(config-bridge)# enable
ESR(config-bridge)# exit
ESR(config)# bridge 20
ESR(config-bridge)# ip vrf forwarding CE2
ESR(config-bridge)# vlan 200
ESR(config-bridge)# ip firewall disable
ESR(config-bridge)# ip address 172.16.32.6/30
ESR(config-bridge)# ip ospf instance 1
ESR(config-bridge)# ip ospf
ESR(config-bridge)# enable
ESR(config-bridge)# exit
ESR(config)#
ESR(config)# interface gigabitethernet 1/0/1
ESR(config-if-gi)# description "to ASBR1"
ESR(config-if-gi)# mode switchport
ESR(config-if-gi)# spanning-tree disable
ESR(config-if-gi)# switchport forbidden default-vlan
ESR(config-if-gi)# switchport mode trunk
ESR(config-if-gi)# switchport trunk allowed vlan add 100,200
ESR(config-if-gi)# exit
ESR(config)# interface gigabitethernet 1/0/2
ESR(config-if-gi)# description "to PE2"
ESR(config-if-gi)# mtu 1522
ESR(config-if-gi)# ip firewall disable
ESR(config-if-gi)# ip address 10.101.0.2/30
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 10.11.1.2/32
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 10.11.1.2
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 |
Проверим распространение маршрутной информации и сетевую доступность узлов:
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PE1# sh bgp vpnv4 unicast all
Status codes: * - valid, > - best, i - internal, S - stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Codes Route Distinguisher IP Prefix Next hop Metric Label LocPrf Weight Path
----- --------------------- ------------------ --------------- ---------- ------- ---------- ------ ----------------
*> 65500:1 10.110.0.1/32 -- -- 37 100 -- 65501 i
*> 65500:1 10.111.0.1/32 -- -- 35 100 -- 65501 i
*>i 65500:1 10.113.0.1/32 10.10.1.2 -- 43 100 0 ?
*>i 65500:1 10.114.0.1/32 10.10.1.2 -- 48 100 0 ?
CE1# ping 10.113.0.1 source ip 10.110.0.1 detailed
PING 10.113.0.1 (10.113.0.1) from 10.110.0.1 : 56 bytes of data.
64 bytes from 10.113.0.1: icmp_seq=1 ttl=0 time=1.31 ms
64 bytes from 10.113.0.1: icmp_seq=2 ttl=0 time=1.14 ms
64 bytes from 10.113.0.1: icmp_seq=3 ttl=0 time=1.08 ms
64 bytes from 10.113.0.1: icmp_seq=4 ttl=0 time=1.06 ms
64 bytes from 10.113.0.1: icmp_seq=5 ttl=0 time=1.16 ms
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