Configuration

• set 4 different local ipv4 addresses on interface dut1_if2
• create 4 geneve tunnel interfaces (l3_mode disabled) with
  local addresses equal to dut1_if2 ipv4 addresses
• create l2bd and put there dut1_if1 and
  all 4 geneve tunnel interfaces
• configure 4 static l2 fib entries for 4 different MAC
  addresses switched via 4 geneve tunnel interfaces
• TG will send packet flows with 4 different dst MACs
• start with uni-directional tests
• check if bi-directional flow generation is possible with current
  TRex implementations (STL, ASTF)