مثال تكوين عاكس مسار IPv6 BGP

hostname Router-A
!
ip cef
!
ipv6 unicast-routing
!
interface Loopback0
 no ip address
 ipv6 address 2011:11:11:11::11/128
 ipv6 ospf 10 area 0
!
interface Serial0/0
 no ip address
 ipv6 address 2011:12:12:12::1/64
 ipv6 ospf 10 area 0
 clock rate 2000000
!
interface Serial0/1
 no ip address
 ipv6 address 2011:13:13:13::1/64
 ipv6 ospf 10 area 0
 clock rate 2000000
!
router bgp 100
 bgp router-id 1.1.1.1
 no bgp default ipv4-unicast
 bgp log-neighbor-changes
 neighbor 2011:22:22:22::22 remote-as 100
 neighbor 2011:22:22:22::22 update-source Loopback0
 neighbor 2011:33:33:33::33 remote-as 100
 neighbor 2011:33:33:33::33 update-source Loopback0
 !
 address-family ipv6
  neighbor 2011:22:22:22::22 activate
  neighbor 2011:22:22:22::22 route-reflector-client

!--- Configures the router RRClient1 as route reflector client! 

  neighbor 2011:33:33:33::33 activate
  neighbor 2011:33:33:33::33 route-reflector-client

!--- Configures the router RRClient2 as route reflector client!

 exit-address-family
!
ip forward-protocol nd
!
ipv6 router ospf 10
 router-id 1.1.1.1

!--- Router ID of the route reflector router A!

 log-adjacency-changes
!
end

hostname RR-Client1
!
ip cef
!
ipv6 unicast-routing
!
interface Loopback0
 no ip address
 ipv6 address 2011:22:22:22::22/128
 ipv6 ospf 10 area 0
!
interface Loopback10
 no ip address
 ipv6 address 1010:10:10:10::10/128
!
interface Serial0/0
 no ip address
 ipv6 address 2011:12:12:12::2/64
 ipv6 ospf 10 area 0
 clock rate 2000000
!
router bgp 100
 bgp router-id 2.2.2.2

!--- Router ID of the RRClient1

 no bgp default ipv4-unicast
 bgp log-neighbor-changes
 neighbor 2011:11:11:11::11 remote-as 100
 neighbor 2011:11:11:11::11 update-source Loopback0
 !
 address-family ipv6
  neighbor 2011:11:11:11::11 activate
  network 1010:10:10:10::10/128
 exit-address-family
!
!
ip forward-protocol nd
!
ipv6 router ospf 10
 router-id 2.2.2.2
 log-adjacency-changes
!
!
end

hostname RR-Client2
!
ip cef
!
no ip domain lookup
ipv6 unicast-routing
!
!
interface Loopback0
 no ip address
 ipv6 address 2011:33:33:33::33/128
 ipv6 ospf 10 area 0
!
interface Loopback20
 no ip address
 ipv6 address 2020:20:20:20::20/128
!
interface Serial0/0
 no ip address
 ipv6 address 2011:13:13:13::2/64
 ipv6 ospf 10 area 0
 clock rate 2000000
!
router bgp 100
 bgp router-id 3.3.3.3

!--- Router ID of the RRClient2

 no bgp default ipv4-unicast
 bgp log-neighbor-changes
 neighbor 2011:11:11:11::11 remote-as 100
 neighbor 2011:11:11:11::11 update-source Loopback0
 !
 address-family ipv6
  neighbor 2011:11:11:11::11 activate
  network 2020:20:20:20::20/128
 exit-address-family
!
ip forward-protocol nd
!
ipv6 router ospf 10
 router-id 3.3.3.3
 log-adjacency-changes
!
end

RRClient1#sh ipv6 route bgp
IPv6 Routing Table - 9 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
       U - Per-user Static route, M - MIPv6
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
       O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
       ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       D - EIGRP, EX - EIGRP external
B   2020:20:20:20::20/128 [200/0]
     via 2011:33:33:33::33

!--- The iBGP route from RRClient2 is reflected


RRClient1#ping 2011:33:33:33::33
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2011:33:33:33::33, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/24/32 ms

!--- Ping to the RRClient2 from RRClient1 is successful

RRCLlient2#sh ipv6 route bgp
IPv6 Routing Table - 9 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
       U - Per-user Static route, M - MIPv6
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
       O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
       ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       D - EIGRP, EX - EIGRP external
B   1010:10:10:10::10/128 [200/0]
     via 2011:22:22:22::22

!--- The iBGP route from RRClient1 is reflected

RRCLlient2#ping 1010:10:10:10::10

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1010:10:10:10::10, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/50/76 ms

!--- Ping to the RRClient1 from RRClient2 is successful

RouterA#sh bgp ipv6 unicast 1010:10:10:10::10/128
BGP routing table entry for 1010:10:10:10::10/128, version 3
Paths: (1 available, best #1, table Global-IPv6-Table)
  Advertised to update-groups:
        1
  Local, (Received from a RR-client)

!--- Indicates that the route was received from a route-reflector client router RRClient1

    2011:22:22:22::22 (metric 64) from 2011:22:22:22::22 (2.2.2.2)
      Origin IGP, metric 0, localpref 100, valid, internal, best

RouterA#show bgp ipv6 unicast 2020:20:20:20::20/128
BGP routing table entry for 2020:20:20:20::20/128, version 2
Paths: (1 available, best #1, table Global-IPv6-Table)
  Advertised to update-groups:
        1
  Local, (Received from a RR-client)

!--- Indicates that the route was received from a route-reflector client router RRClient2

    2011:33:33:33::33 (metric 64) from 2011:33:33:33::33 (3.3.3.3)
      Origin IGP, metric 0, localpref 100, valid, internal, best

show bgp ipv6 unicast 2020:20:20:20::20/128
BGP routing table entry for 2020:20:20:20::20/128, version 3
Paths: (1 available, best #1, table Global-IPv6-Table)
  Not advertised to any peer
  Local
    2011:33:33:33::33 (metric 128) from 2011:11:11:11::11 (1.1.1.1)
      Origin IGP, metric 0, localpref 100, valid, internal, best
      Originator: 3.3.3.3, Cluster list: 1.1.1.1

!--- Originator ID 3.3.3.3 is the router id of the RRClient2 from which the route is received!


!--- Similarly, Cluster ID 1.1.1.1 is the router ID of the router reflector Router A!

show bgp ipv6 unicast 1010:10:10:10::10/128
BGP routing table entry for 1010:10:10:10::10/128, version 3
Paths: (1 available, best #1, table Global-IPv6-Table)
  Not advertised to any peer
  Local
    2011:22:22:22::22 (metric 128) from 2011:11:11:11::11 (1.1.1.1)
      Origin IGP, metric 0, localpref 100, valid, internal, best
      Originator: 2.2.2.2, Cluster list: 1.1.1.1

!--- Originator ID 2.2.2.2 is the router ID of the RRClient1 from which the route is received!


!--- Similarly, Cluster ID 1.1.1.1 is the router ID of the router reflector Router A!