nanog mailing list archives
Re: US patent 5473599
From: Henning Brauer <hb-nanog () bsws de>
Date: Thu, 8 May 2014 13:09:38 +0200
* Nick Hilliard <nick () foobar org> [2014-05-08 13:03]:
On 08/05/2014 11:25, Henning Brauer wrote:you shouldn't see issues but log spam.maybe you misunderstand the problem. If you have vrrp and carp on the same vlan, using the same vrrp group ID as VHID, then each virtual IP will arp for the same mac address on that vlan.
correct.
This messes up the switch's forwarding table for that particular vlan because it sees multiple entries from different ports for the same mac address.
correct. my switches seem to deal with that, wether they have special handling for that mac addr range or not i dunno. again, stress the fact that afair we have gotten zero reports about that "issue" for 10 years, it obviously means that either 1) a vast majority of switches deal with it just fine 2) people know that vhids shouldn't clash and avoid that -- Henning Brauer, hb () bsws de, henning () openbsd org BS Web Services GmbH, AG Hamburg HRB 128289, http://bsws.de Full-Service ISP - Secure Hosting, Mail and DNS Services Dedicated Servers, Rootservers, VMs/PVS, Application Hosting
Current thread:
- Re: US patent 5473599, (continued)
- Re: US patent 5473599 Constantine A. Murenin (May 06)
- Re: US patent 5473599 Owen DeLong (May 07)
- Re: US patent 5473599 Constantine A. Murenin (May 07)
- Re: US patent 5473599 Valdis . Kletnieks (May 07)
- Re: US patent 5473599 Constantine A. Murenin (May 07)
- Re: US patent 5473599 Blake Dunlap (May 07)
- Re: US patent 5473599 Laszlo Hanyecz (May 07)
- Re: US patent 5473599 Henning Brauer (May 08)
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- Re: US patent 5473599 Henning Brauer (May 08)
- Re: US patent 5473599 Nick Hilliard (May 08)
- Re: US patent 5473599 Henning Brauer (May 08)
- Re: US patent 5473599 Nick Hilliard (May 08)
- Re: US patent 5473599 Geraint Jones (May 08)
- Re: US patent 5473599 Alain Hebert (May 08)
- Re: US patent 5473599 Henning Brauer (May 06)
- Re: US patent 5473599 Owen DeLong (May 07)
- Re: US patent 5473599 TGLASSEY (May 07)
- RE: US patent 5473599 Leo Vegoda (May 07)
- Re: US patent 5473599 David Conrad (May 07)
- Re: US patent 5473599 Matt Palmer (May 07)
- Re: US patent 5473599 Rob Seastrom (May 07)