nanog mailing list archives
RE: mac-address accounting
From: "Martin, Christian" <cmartin () gnilink net>
Date: Fri, 1 Jun 2001 10:08:34 -0400
Whoops, mixed this up with ISL. This is ISL group 0. sorry for the spewage.. chris
I think these maybe the Cisco LOOP pulses sent out to detect link status. Lemme check in the lab... chris-----Original Message----- From: Simon Leinen [mailto:simon () limmat switch ch] Sent: Friday, June 01, 2001 8:47 AM To: Alex Rubenstein Cc: nanog () merit edu Subject: Re: mac-address accounting"ar" == Alex Rubenstein <alex () nac net> writes:core1.nyc#sho int g0/0/0 mac-accounting GigabitEthernet0/0/0 to external peers and customers Output (475 free)[...]0100.0c00.0000(13 ): 57198 packets, 37155973 bytes,last: 388ms ago [...]core1.nyc#sho arp | inc 0100 core1.nyc#01:00:0c is Cisco's Ethernet multicast address prefix. 01:00:0c:00:00:00 looks strange to me. The cisco-nsp mailing list had a query about this problem: http://puck.nether.net/lists/cisco-nsp/0318.html But I don't know whether this has been resolved. If I try outbound MAC accounting (usually I only use inbound MAC accountingat exchangepoints) on a 7206VXR running 12.0(17)S, everything looks fine.All the others are valid, yet they are way, and I mean *way* under the amounts that I know I am sending to that peer.(Maybe your Cisco multicasts all traffic out to the exchange point rather than send it to the correct peer - seems much more robust to me, although you might end up with heavy packet replication :-) -- Simon Leinen
simon () babar switch ch
SWITCHhttp://www.switch.ch/misc/leinen/ Computers hate being anthropomorphized.
Current thread:
- mac-address accounting Alex Rubenstein (Jun 01)
- Re: mac-address accounting Simon Leinen (Jun 01)
- Re: mac-address accounting Jesper Skriver (Jun 01)
- <Possible follow-ups>
- RE: mac-address accounting Martin, Christian (Jun 01)
- RE: mac-address accounting Martin, Christian (Jun 01)