Patent ID: 9602375
Date: 2017-03-21
CPC Classifications: H04L

Claim:
1. For a first forwarding element to which a first machine connects, the first machine belonging to a particular logical network, a method comprising: receiving a command to test connectivity between the first forwarding element and a plurality of additional forwarding elements to which a plurality of additional machines that belong to the particular logical network connect, wherein at least two of the additional forwarding elements are located in a different multicast segment of a physical network than the first forwarding element; instructing a packet generator connected to the first forwarding element to generate a test packet to send to the plurality of additional forwarding elements; encapsulating a plurality of copies of the generated test packet with tunnel endpoint addresses, each copy of the generated test packet encapsulated with a tunnel endpoint address for the first forwarding element and a tunnel endpoint address of another forwarding element of the plurality of additional forwarding elements, wherein only a single generated test packet is encapsulated with a particular tunnel endpoint address for the at least two forwarding elements located in the different multicast segment; and sending the encapsulated packets through a physical network, wherein the single generated test packet is received at a particular managed forwarding element corresponding to the particular tunnel endpoint address and distributed by the particular forwarding element to the other forwarding elements of the at least two forwarding elements located in the different multicast segment.