[ISP-x670]
!
hostname ISP-x670
!
interface Port-channel1
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface Ethernet0/0
 description to C9500
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface Ethernet0/1
 description to C9500
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface Ethernet0/2
 description to C9500
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface Ethernet0/3
 description to C9500
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface Vlan2
 ip address 194.50.67.1 255.255.255.0
!
interface Vlan3
 ip address 173.45.28.1 255.255.255.0
!
router bgp 29341
 bgp log-neighbor-changes
 neighbor 173.45.28.2 remote-as 22943
 neighbor 194.50.67.2 remote-as 22943
!         
end

[IDC-C9500]
!
hostname IDC-C9500
!
interface Port-channel1
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface Ethernet0/0
 description to x670
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface Ethernet0/1
 description to x670
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface Ethernet0/2
 description to x670
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface Ethernet0/3
 description to x670
 switchport trunk allowed vlan 2,3
 switchport trunk encapsulation dot1q
 switchport mode trunk
 channel-group 1 mode active
!
interface Vlan2
 ip address 194.50.67.2 255.255.255.0
!
interface Vlan3
 ip address 173.45.28.2 255.255.255.0
!
router bgp 22943
 bgp log-neighbor-changes
 neighbor 173.45.28.1 remote-as 29341
 neighbor 194.50.67.1 remote-as 29341
!
end