Date: Fri, 27 Apr 2001 09:21:23 +1000 From: Tony Landells <ahl@austclear.com.au> To: mi@aldan.algebra.com Cc: questions@FreeBSD.ORG, net@FreeBSD.ORG Subject: Re: maxing out the 100Mb TX (full duplex) Message-ID: <200104262321.JAA17337@tungsten.austclear.com.au> In-Reply-To: Message from mi@aldan.algebra.com of "Thu, 26 Apr 2001 19:08:47 -0400." <200104262308.f3QN8mC73561@misha.privatelabs.com>
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mi@aldan.algebra.com said: > Well, we have Intel's Express 510T switch... I tried to grep the > manual for "EtherChannel", it is not there... But the switch looks > impressive, so may be it is just called something else? I know that Sun call this concept "trunking". Other things you might look for are, say, "port aggregation" or "bandwidth aggregation". Perhaps the easiest thing to do is to talk to your reseller or to Intel support. Be aware though that there are two models (that I know of) for doing this--one just cycles through the interfaces sending one packet on each in turn (such as ng_one2many does); the other performs an XOR of the last n bits of the source and destination MAC addresses to select the interface the packet should travel through (this is the one most Cisco equipment supports). Sun support either. Cisco generally support only the second, though the switches they acquired from Kalpana only support the first (so yes, you can have two Cisco switches that can't EtherChannel). The last time I looked FreeBSD could only support the first (through ng_one2many). Cheers, Tony -- Tony Landells <ahl@austclear.com.au> Senior Network Engineer Ph: +61 3 9677 9319 Australian Clearing Services Pty Ltd Fax: +61 3 9677 9355 Level 4, Rialto North Tower 525 Collins Street Melbourne VIC 3000 Australia To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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