I'm using MAC accounting on our Fast E connection at the PAIX to do per-peer traffic stats. It worked great until we put in a GSR. I don't know why it worked before or if anything has changed since. The stats aren't working now because the # of entries in the MAC accounting table exceed 512 (a hard IOS limit). The majority of these aren't in the ARP table ... they are inbound without translation ... just layer 2 noise. It seems odd to me that there are this many distinct addresses on the same shared segment. Not to mention that the port isn't switched. To wit: 0000.0000.0000(0 ): 110444951 packets, 27399M bytes, last: 80ms ago 0000.0003.0000(3 ): 9416 packets, 2738919 bytes, last: 455680ms ago 0000.037f.4129(20 ): 33 packets, 7700 bytes, last: 302129568ms ago Pretty serious chunks of bandwidth. There are a large group of these addresses that begin with 0000. --- are these some sort of bridged translation? Can you think of any other reason that so many MACs would appear on the same port? --matt hempel