This command will show all the servers currently linked together on the network.
If there is lag between two servers, you can use the links command to determine the path between them. Then you can test each link to see which is causing the lag. This is useful if you intend to reroute servers, SQUIT a leaf off of a hub and connect it to a different hub. Or disconnect two hubs and reconnect one to another hub.
Normal users can also use the links command to find server names to connect to or to connect to servers closer to the servers their friends are on.