Date: Sat, 23 Sep 2006 01:36:10 +0200 From: "Bart Van Kerckhove - mobile" <bart@it-ss.be> To: "Antony Mawer" <fbsd-net@mawer.org> Cc: freebsd-net@freebsd.org Subject: Re: LACP 802.3ad and ng_fec ? Message-ID: <000c01c6de9f$e5b79d60$de0b000a@mobilexp> References: <4513A5D1.4000604@mersin.edu.tr><4513AC94.8040609@mawer.org> <45142ED1.1000204@mersin.edu.tr><00ed01c6de77$8968f770$020b000a@bartwrkstxp> <45146FA2.8070208@mawer.org>
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>>> Thanks for your reply, >>> >>> It seems that HP ProCurve 5400 series doesn't support fec trunking : >>> >>> hp(config)# trunk A3-a5 trk1 fec >>> Invalid input: fec >>> >>> hp(config)# trunk A3-a5 trk1 ? >>> trunk Do not use any protocol to create or maintain >>> the trunk. >>> lacp Use IEEE 802.1ad Link Aggregation protocol. >>> <cr> >>> hp(config)# >>> >>> Can ng_fec handshake with switch via "trunk" option instead of "fec" ? >> According to HP docs, FEC should "work" with the 'trunk' setting. >> It will loose all features tough, and just become a 'dumb' bonding-style >> thing, with no redundancy and other features. > > Yes, I was reading some HP docs yesterday and they implied that they were > removing FEC on newer switches in favour of using the IEEE standards-based > methods of trunking. I can NOT resist taking the bait here: HP has supported these standards for ages. In fact, the cisco-protocols were used to market their stuff as cisco-replacements. They ripped out functionality. IEEE Standards were already supported. Same for their SFP's. Vendor lock-in is a bitch, especially when that means you can't get stuff that was previously possible. (think cwdm gbics, etc) > > I wonder how dissimilar FEC and IEEE LACP are from one another? ie. how > much of the code from ng_fec could be used to implement an ng_lacp... I honestly don't know :-/ I'm very interested in the whole topic though, as we're an all-HP (as in procurve) shop. I do know that will only last 'till the next boxes we buy, HP has let us down the past few years. -Bart (sorry for the ranting)
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