Example ToR Switch Output when you set up an iBGP connection between the ToR switches and an eBGP between each ToR switch and the upstream router.

TOR-20(config)# show running-config bgp

!Command: show running-config bgp
!Time: Tue Nov  8 00:50:29 2016

version 7.0(3)I2(2d)
feature bgp

router bgp 64990
  router-id 192.168.220.1
  address-family ipv4 unicast
    redistribute direct route-map rmap-bgp
    maximum-paths 4
    maximum-paths ibgp 2
  neighbor 192.168.53.2
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.54.2
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.143.2
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.144.2
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.145.2
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.146.2
    remote-as 64512
    address-family ipv4 unicast
  
TOR-20(config)# show ip interface brief
IP Interface Status for VRF "default"(1)
Interface            IP Address      Interface Status
Vlan1001             192.168.120.21  protocol-up/link-up/admin-up
Vlan1005             192.168.98.1    protocol-up/link-up/admin-up
Lo0                  192.168.220.1   protocol-up/link-up/admin-up
Eth1/43              192.168.143.1   protocol-up/link-up/admin-up
Eth1/44              192.168.144.1   protocol-up/link-up/admin-up
Eth1/45              192.168.145.1   protocol-up/link-up/admin-up
Eth1/46              192.168.146.1   protocol-up/link-up/admin-up
Eth1/53              192.168.53.1    protocol-up/link-up/admin-up
Eth1/54              192.168.54.1    protocol-up/link-up/admin-up


TOR-21(config)# show running-config bgp

!Command: show running-config bgp
!Time: Tue Nov  8 00:54:23 2016

version 7.0(3)I2(2d)
feature bgp

router bgp 64990
  router-id 192.168.220.2
  address-family ipv4 unicast
    redistribute direct route-map rmap-bgp
    maximum-paths 4
    maximum-paths ibgp 2
  neighbor 192.168.53.1
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.54.1
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.243.2
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.244.2
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.245.2
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.246.2
    remote-as 64512
    address-family ipv4 unicast

TOR-21(config)# show ip interface brief
IP Interface Status for VRF "default"(1)
Interface            IP Address      Interface Status
Vlan1001             192.168.120.20  protocol-up/link-up/admin-up
Lo0                  192.168.220.2   protocol-up/link-up/admin-up
Eth1/43              192.168.243.1   protocol-up/link-up/admin-up
Eth1/44              192.168.244.1   protocol-up/link-up/admin-up
Eth1/45              192.168.245.1   protocol-up/link-up/admin-up
Eth1/46              192.168.246.1   protocol-up/link-up/admin-up
Eth1/53              192.168.53.2    protocol-up/link-up/admin-up
Eth1/54              192.168.54.2    protocol-up/link-up/admin-up


Core1(config-router)# show running-config bgp

!Command: show running-config bgp
!Time: Tue Nov  8 00:57:53 2016

version 7.0(3)I4(2)
feature bgp

router bgp 64512
  router-id 192.168.221.1
  address-family ipv4 unicast
    redistribute direct route-map rmap-bgp
    maximum-paths 4
    maximum-paths ibgp 2
  neighbor 192.168.49.2
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.50.2
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.143.1
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.144.1
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.245.1
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.246.1
    remote-as 64990
    address-family ipv4 unicast

Core1(config-router)# show ip interface brief
IP Interface Status for VRF "default"(1)
Interface            IP Address      Interface Status
Lo0                  192.168.221.1   protocol-up/link-up/admin-up
Eth1/1               192.168.143.2   protocol-up/link-up/admin-up
Eth1/2               192.168.144.2   protocol-up/link-up/admin-up
Eth1/3               192.168.245.2   protocol-up/link-up/admin-up
Eth1/4               192.168.246.2   protocol-up/link-up/admin-up
Eth1/49              192.168.49.1    protocol-up/link-up/admin-up
Eth1/50              192.168.50.1    protocol-up/link-up/admin-up


Core2(config-router)# show running-config bgp

!Command: show running-config bgp
!Time: Tue Nov  8 00:58:04 2016

version 7.0(3)I4(2)
feature bgp

router bgp 64512
  router-id 192.168.221.2
  address-family ipv4 unicast
    redistribute direct route-map rmap-bgp
    maximum-paths 4
    maximum-paths ibgp 2
  neighbor 192.168.49.1
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.50.1
    remote-as 64512
    address-family ipv4 unicast
  neighbor 192.168.145.1
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.146.1
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.243.1
    remote-as 64990
    address-family ipv4 unicast
  neighbor 192.168.244.1
    remote-as 64990
    address-family ipv4 unicast

Core2(config-router)# show ip interface brief
IP Interface Status for VRF "default"(1)
Interface            IP Address      Interface Status
Lo0                  192.168.221.2   protocol-up/link-up/admin-up
Eth1/1               192.168.243.2   protocol-up/link-up/admin-up
Eth1/2               192.168.244.2   protocol-up/link-up/admin-up
Eth1/3               192.168.145.2   protocol-up/link-up/admin-up
Eth1/4               192.168.146.2   protocol-up/link-up/admin-up
Eth1/49              192.168.49.2    protocol-up/link-up/admin-up
Eth1/50              192.168.50.2    protocol-up/link-up/admin-up