====IOS-XR Lab 7: iBGP with Three Routers part 3====

This lab will configure all three routers to form iBGP relationships with each other.
  - Connect R1: G0/0/0/2 to R3: G0/0/0/2
  - On R1:
    - IP: 10.0.2.2/24
    - BGP ASN 65000
  - On R3: 10.0.2.3/24
    - BGP ASN 65000
  - Add a neighbor and network statement to R3 from R1 and vice-versa.
    - ++Answer R1|<code>router bgp 65000
 address-family ipv4 unicast
  network 10.0.2.0/24
 ! 
 neighbor 10.0.2.3
  remote-as 65000
  address-family ipv4 unicast</code> ++
    - ++Answer R3|<code>router bgp 65000
 address-family ipv4 unicast
  network 10.0.2.0/24
 ! 
 neighbor 10.0.2.1
  remote-as 65000
  address-family ipv4 unicast</code> ++
  - Verify
    - <code>RP/0/0/CPU0:R3#show bgp summ
Neighbor        Spk    AS MsgRcvd MsgSent   TblVer  InQ OutQ  Up/Down  St/PfxRcd
10.0.0.2          0 65000      24      24      779    0    0 00:18:58          3
10.0.1.2          0 65000      25      27      779    0    0 00:22:02          3
10.0.2.2          0 65000       4       4      779    0    0 00:00:11          3
</code>
    - <code>RP/0/0/CPU0:R3#show bgp nei 10.0.0.2 | i BGP state
BGP state = Established, up for 01:44:11</code>
    - <code>RP/0/RP0/CPU0:R3#show route bgp
Tue Feb  4 14:13:28.337 UTC

B    1.1.1.1/32 [200/0] via 10.0.0.2, 00:00:00
B    2.2.2.2/32 [200/0] via 10.0.1.2, 00:23:32
B    10.0.0.0/24 [200/0] via 10.0.0.2, 00:00:00</code>
    - <code>RP/0/RP0/CPU0:R3#show route bgp
Thu Feb  6 13:46:14.638 UTC

B    1.1.1.1/32 [200/0] via 10.0.2.2, 00:20:02
B    2.2.2.2/32 [200/0] via 10.0.1.2, 06:09:40
B    10.0.0.0/24 [200/0] via 10.0.2.2, 00:20:02</code> 
    - Now R1 and R3 have a physical full-mesh iBGP relationship.

[[:cisco:labs:ios_xr:lab8|IOS-XR Lab 8: iBGP with Three Routers part 4 - using loopback peering]]\\ 
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