I did a google search on "ethernet keepalive" (with the quotes so it would only find the terms together) and found:
These are ethernet keepalive packets. It is a 122 byte packet with DA=SA and a type code of 9000. Keepalive packets are sent out onto the ethernet, received back and compared for correctness. It requires the ethernet to be properly terminated. cisco uses them to keep the line protocol up. You can turn them off by doing a 'no keepalive' command. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=28932&t=28888 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
