too much misc network traffic.

[Les]

My network has slowed to a crawl.  I keep seeing this repeated over and
over, with all systems but the one I am using to run a new application
called Croquet.  Can anyone provide any guidance?

18:03:39.316004 arp who-has 192.168.1.64 (Broadcast) tell home
18:03:40.319101 arp who-has 192.168.1.64 (Broadcast) tell home
18:03:41.325568 arp who-has JACE (Broadcast) tell home
18:03:42.328964 arp who-has JACE (Broadcast) tell home
18:03:43.332856 arp who-has your-4f1261a8e5 (Broadcast) tell home
18:03:44.336177 arp who-has your-4f1261a8e5 (Broadcast) tell home
18:03:45.342673 arp who-has 192.168.1.66 (Broadcast) tell home
18:03:46.345921 arp who-has 192.168.1.66 (Broadcast) tell home
18:03:47.349834 arp who-has 192.168.1.67 (Broadcast) tell home
18:03:47.349910 arp reply 192.168.1.67 is-at 00:14:6c:75:eb:28 (oui
Unknown)
Regards,
Les H