Test suite contains following tests:

• VPP can encapsulate L2 in VXLAN over V4 using bridge-domain with split-horizon group

• Vpp forwards ICMPv4 packets through VXLAN tunnels in the same split-horizon group of one L2 bridge domain:
  Create two VXLAN interfaces on both VPP nodes. Create one bridge domain (learning enabled) on the first VPP node, add VXLAN interfaces to the same split-horizon group of the bridge domain where interfaces toward TG are added to. Create two bridge domains (learning enabled) on the second VPP node and add one VXLAN interface and one interface toward TG to each of them. Check traffic bidirectionally.

• Vpp forwards ICMPv4 packets through VXLAN tunnels in different split-horizon groups of one L2 bridge domain:
  Create two VXLAN interfaces on both VPP nodes. Create one bridge domain (learning enabled) on the first VPP node, add VXLAN interfaces to different split-horizon groups of the bridge domain where interfaces toward TG are added to. Create two bridge domains (learning enabled) on the second VPP node and add one VXLAN interface and one interface toward TG to each of them. Check traffic bidirectionally.