vlans:
  hosts:
    vid: 100
    description: "vlan for clients"
    faucet_mac: "00:00:00:00:00:11"
    faucet_vips: ["10.0.0.254/24"]

  servers:
    vid: 200
    description: "vlan for servers"
    faucet_mac: "00:00:00:00:00:22"
    faucet_vips: ["10.0.1.254/24"]
    routes:
    - route:
        ip_dst: "192.0.2.0/24"
        ip_gw: '10.0.1.1'
routers:
  router-hosts-servers:
    vlans: [hosts, servers]
dps:
  br0:
    dp_id: 0x1
    hardware: "Open vSwitch"
    interfaces:
      1:
        name: "host1"
        description: "host1 network namespace"
        native_vlan: hosts
      2:
        name: "host2"
        description: "host2 network namespace"
        native_vlan: hosts
      3:
        name: "server"
        description: "server network namespace"
        native_vlan: servers

create_ns host1 10.0.0.1/24
create_ns host2 10.0.0.2/24
create_ns server 10.0.1.1/24
as_ns host1 ip route add default via 10.0.0.254
as_ns host2 ip route add default via 10.0.0.254
as_ns server ip route add default via 10.0.1.254
as_ns server ip address add 192.0.2.1/24 dev veth0

sudo ovs-vsctl add-br br0 \
-- set bridge br0 other-config:datapath-id=0000000000000001 \
-- set bridge br0 other-config:disable-in-band=true \
-- set bridge br0 fail_mode=secure \
-- add-port br0 veth-host1 -- set interface veth-host1 ofport_request=1 \
-- add-port br0 veth-host2 -- set interface veth-host2 ofport_request=2 \
-- add-port br0 veth-server -- set interface veth-server ofport_request=3 \
-- set-controller br0 tcp:127.0.0.1:6653 tcp:127.0.0.1:6654

$ as_ns server ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: veth0@if12: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 8a:11:56:ed:90:1a brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 10.0.1.1/24 scope global veth0
       valid_lft forever preferred_lft forever
    inet 192.0.2.1/24 scope global veth0
       valid_lft forever preferred_lft forever
    inet6 fe80::8811:56ff:feed:901a/64 scope link
       valid_lft forever preferred_lft forever

$ as_ns host1 ping 10.0.1.1 -c2
PING 10.0.1.1 (10.0.1.1) 56(84) bytes of data.
64 bytes from 10.0.1.1: icmp_seq=1 ttl=63 time=0.367 ms
64 bytes from 10.0.1.1: icmp_seq=2 ttl=63 time=0.103 ms

$ as_ns host1 ping 192.0.2.1 -c2
PING 192.0.2.1 (192.0.2.1) 56(84) bytes of data.
64 bytes from 192.0.2.1: icmp_seq=1 ttl=63 time=0.308 ms
64 bytes from 192.0.2.1: icmp_seq=2 ttl=63 time=0.131 ms

$ as_ns server tcpdump -l -e -n -i veth0
10:52:16.957652 00:00:00:00:00:22 > 8a:11:56:ed:90:1a, ethertype ARP (0x0806), length 60: Request who-has 10.0.1.1 tell 10.0.1.254, length 46
10:52:16.957665 8a:11:56:ed:90:1a > 00:00:00:00:00:22, ethertype ARP (0x0806), length 42: Reply 10.0.1.1 is-at 8a:11:56:ed:90:1a, length 28
10:52:42.127538 00:00:00:00:00:22 > 8a:11:56:ed:90:1a, ethertype IPv4 (0x0800), length 98: 10.0.0.1 > 10.0.1.1: ICMP echo request, id 4105, seq 1, length 64
10:52:42.127559 8a:11:56:ed:90:1a > 00:00:00:00:00:22, ethertype IPv4 (0x0800), length 98: 10.0.1.1 > 10.0.0.1: ICMP echo reply, id 4105, seq 1, length 64
10:52:43.159842 00:00:00:00:00:22 > 8a:11:56:ed:90:1a, ethertype IPv4 (0x0800), length 98: 10.0.0.1 > 10.0.1.1: ICMP echo request, id 4105, seq 2, length 64
10:52:43.159878 8a:11:56:ed:90:1a > 00:00:00:00:00:22, ethertype IPv4 (0x0800), length 98: 10.0.1.1 > 10.0.0.1: ICMP echo reply, id 4105, seq 2, length 64
10:52:47.383850 8a:11:56:ed:90:1a > 00:00:00:00:00:22, ethertype ARP (0x0806), length 42: Request who-has 10.0.1.254 tell 10.0.1.1, length 28
10:52:47.386082 00:00:00:00:00:22 > 8a:11:56:ed:90:1a, ethertype ARP (0x0806), length 60: Reply 10.0.1.254 is-at 00:00:00:00:00:22, length 46
10:52:58.085359 00:00:00:00:00:22 > 8a:11:56:ed:90:1a, ethertype IPv4 (0x0800), length 98: 10.0.0.1 > 192.0.2.1: ICMP echo request, id 4108, seq 1, length 64
10:52:58.085380 8a:11:56:ed:90:1a > 00:00:00:00:00:22, ethertype IPv4 (0x0800), length 98: 192.0.2.1 > 10.0.0.1: ICMP echo reply, id 4108, seq 1, length 64
10:52:59.095718 00:00:00:00:00:22 > 8a:11:56:ed:90:1a, ethertype IPv4 (0x0800), length 98: 10.0.0.1 > 192.0.2.1: ICMP echo request, id 4108, seq 2, length 64
10:52:59.095782 8a:11:56:ed:90:1a > 00:00:00:00:00:22, ethertype IPv4 (0x0800), length 98: 192.0.2.1 > 10.0.0.1: ICMP echo reply, id 4108, seq 2, length 64

    routes:
    - route:
        ip_dst: "192.0.2.0/24"
        ip_gw: '10.0.1.1'

  bird:
    bgp:
      vlan: servers                       # The VLAN faucet use for BGP
      as: 65000                           # Faucet's AS number
      port: 9179                          # BGP port for Faucet to listen on.
      routerid: '10.0.1.3'                # Faucet's Unique ID.
      server_addresses: ['10.0.1.3']      # Faucet's listen IP for BGP
      neighbor_addresses: ['10.0.1.2']    # Neighbouring IP addresses (IPv4/IPv6)
      neighbor_as: 65001                  # Neighbour's AS number

      4:
        name: "bgp"
        description: "BIRD BGP router"
        native_vlan: servers
      5:
        name: "faucet"
        description: "faucet dataplane connection"
        native_vlan: servers

vlans:
  hosts:
    vid: 100
    description: "vlan for clients"
    faucet_mac: "00:00:00:00:00:11"
    faucet_vips: ["10.0.0.254/24"]

  servers:
    vid: 200
    description: "vlan for servers"
    faucet_mac: "00:00:00:00:00:22"
    faucet_vips: ["10.0.1.254/24"]
routers:
  router-hosts-servers:
    vlans: [hosts, servers]
  bird:
    bgp:
      vlan: servers                       # The VLAN faucet use for BGP
      as: 65000                           # Faucet's AS number
      port: 9179                          # BGP port for Faucet to listen on.
      routerid: '10.0.1.3'                # Faucet's Unique ID.
      server_addresses: ['10.0.1.3']      # Faucet's listen IP for BGP
      neighbor_addresses: ['10.0.1.2']    # Neighbouring IP addresses (IPv4/IPv6)
      neighbor_as: 65001                  # Neighbour's AS number
dps:
  br0:
    dp_id: 0x1
    hardware: "Open vSwitch"
    interfaces:
      1:
        name: "host1"
        description: "host1 network namespace"
        native_vlan: hosts
      2:
        name: "host2"
        description: "host2 network namespace"
        native_vlan: hosts
      3:
        name: "server"
        description: "server network namespace"
        native_vlan: servers
      4:
        name: "bgp"
        description: "BIRD BGP router"
        native_vlan: servers
      5:
        name: "faucet"
        description: "faucet dataplane connection"
        native_vlan: servers

create_ns bgp 10.0.1.2/24
sudo ovs-vsctl add-port br0 veth-bgp -- set interface veth-bgp ofport_request=4

sudo ip link add veth-faucet type veth peer name veth-faucet-ovs
sudo ovs-vsctl add-port br0 veth-faucet-ovs -- set interface veth-faucet-ovs ofport_request=5
sudo ip addr add 10.0.1.3/24 dev veth-faucet
sudo ip link set veth-faucet up
sudo ip link set veth-faucet-ovs up

sudo apt-get install bird
sudo systemctl stop bird
sudo systemctl stop bird6

protocol kernel {
    scan time 60;
    import none;
}

protocol device {
    scan time 60;
}

# Generate static route inside bird
protocol static {
    route 192.0.2.0/24 via 10.0.1.1;
}

# BGP peer with faucet
# Import all routes and export our static route
protocol bgp faucet {
    local as 65001;
    neighbor 10.0.1.3 port 9179 as 65000;
    export all;
    import all;
}

$ as_ns bgp bird -P /run/bird-bgp.pid

$ as_ns bgp ps -ef | grep bird

$ as_ns bgp netstat -antulop | grep 5861
tcp        0      0 0.0.0.0:179             0.0.0.0:*               LISTEN      5861/bird            off (0.00/0/0)
tcp        0      1 10.0.1.2:60903          10.0.1.3:9179           SYN_SENT    5861/bird            on (1.72/1/0)