log file /tmp/bgpd.log debugging
!
router bgp 65000
 bgp router-id 10.1.1.1
 neighbor 10.4.4.4 remote-as 65000
 neighbor 10.4.4.4 update-source 10.1.1.1
 neighbor 10.4.4.4 timers connect 10
 !
 address-family ipv4 vpn
  neighbor 10.4.4.4 activate
 exit-address-family

!
router bgp 65001 vrf VRF-a
 bgp router-id 192.168.100.20
 timers bgp 3 9
 neighbor 192.168.100.10 remote-as 65001
 neighbor 192.168.100.10 update-source 192.168.100.20
 neighbor 192.168.200.10 remote-as 65001
 neighbor 192.168.200.10 update-source 192.168.200.20
 !
 address-family ipv4 unicast
  redistribute connected
  redistribute isis
  label vpn export 1111
  rd vpn export 10:1
  rt vpn both 1:1
  export vpn
  import vpn
 exit-address-family

router bgp 65002 vrf VRF-b
 bgp router-id 192.168.10.20
 timers bgp 3 9
 neighbor 192.168.10.10 remote-as 65003
 neighbor 192.168.10.10 update-source 192.168.10.20
!
 address-family ipv4 unicast
  redistribute connected
  redistribute isis
  label vpn export 6666
  rd vpn export 10:2
  rt vpn both 1:2
  export vpn
  import vpn
 exit-address-family

agentx