Date: Fri, 26 Feb 1999 19:00:13 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: pete@sms.fi (Petri Helenius) Cc: archie@whistle.com, venkats@austin.ibm.com, freebsd-net@FreeBSD.ORG Subject: Re: etherchannel support Message-ID: <199902261800.TAA26142@labinfo.iet.unipi.it> In-Reply-To: <36D6F45F.F898DD12@sms.fi> from "Petri Helenius" at Feb 26, 99 09:21:49 pm
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> > > > > > Does freebsd have support for Cisco's etherchannel ? > > ... > > > > hmm... i see it easy for incoming path, but what about the outgoing ? > > > > How do you chose which interface to use for output, what about load > > > > balancing, etc ? > > > Well, what does Cisco do? > > > > hey, i asked first! > > > > cheers > > luigi > > > They XOR the low byte of the source and destination mac addresses and use > 1-3 low order bits to determine the link to transmit on. (etherchannel > supports > at least up to 8 links between two devices) hmm... so if all your cards use the same mac address (which could be useful to simplify life when doing ARP-related stuff etc) you effectively only use one link ? luigi -----------------------------------+------------------------------------- Luigi RIZZO . EMAIL: luigi@iet.unipi.it . Dip. di Ing. dell'Informazione HTTP://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy) -----------------------------------+------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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