Adding option to check VM connectivity with packet of given size

Adding mtu parameter to check_remote_connectivity function.
When given, send packets of that size.
If fragmentation flag is False, then don't fragment the packets.

Change-Id: I5f2742b6e8fd894fcfe4c0e2a7eb4a14d2594dd4
1 file changed
tree: fff7cf46f4a241469e51ad8db65fd0b71b109e78
  1. neutron/