Inter-AS MPLS Option B Prefix-Filtering (IOS-XR)

extcommunity-set rt Cust1-OptionB-RT-Filter-In
  65001:10,
  65001:20,
  65001:30,
  65001:40,
  65001:50,
  65001:60,
  65001:70
end-set

route-policy Cust1-PE-RT-Filter-In
  if extcommunity rt matches-any Cust1-OptionB-RT-Filter-In then
    pass
  endif
end-policy


extcommunity-set rt Cust1-OptionB-RT-Filter-Out
  65001:10,
  65001:20,
  65001:30,
  65001:40,
  65001:50,
  65001:60,
  65001:70
end-set

extcommunity-set rt Cust1-VPN70-RT-Out
  65001:70
end-set

prefix-set Cust1-VPN70-Prefixes-Out
  192.168.30.0/24
end-set

route-policy Cust1-PE-RT-Filter-Out
  if extcommunity rt matches-any Cust1-OptionB-RT-Filter-Out then
    if extcommunity rt matches-any Cust1-VPN70-RT-Out then
      if destination in Cust1-VPN70-Prefixes-Out then
        pass
      endif
    endif
    pass
  endif
end-policy


router bgp 100
 neighbor 192.168.0.1
 remote-as 65001
  address-family vpnv4 unicast
   route-policy Cust1-PE-RT-Filter-In in
   route-policy Cust1-PE-RT-Filter-Out out
   next-hop-self
   exit
  exit
 exit

---