[atlas] Link aggregation for anchors?
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Gert Doering
gert at space.net
Thu Jul 20 07:52:30 CEST 2017
Hi, On Thu, Jul 20, 2017 at 07:44:46AM +0200, Tore Anderson wrote: > * Gert Doering <gert at space.net> > > > (active/passive linux bonding would work well for us, while LACP > > wouldn't due to conscious design decision to de-couple control planes > > of primary/secondary switches) > > Active/passive fail-over à la Linux bonding would work for me too. The > biggest disadvantage of that is that you waste half your available > bandwidth, but that probably isn't a big deal for the Atlas Anchors. Not really, given a GigE uplink and just a few mbits in use :-) > It is quite possible to create a setup that does 802.3ad if an LACP > neighbour is detected, falling back on active/passive fail-over if not. > That said, you do lose most of the error detection capabilities of LACP > that way. Quite possibly not worth the engineering effort if it's not > already implemented in whatever software you're using. Linux bonding can do ARP probing on both member interfaces, which does the most important "real world" part of the error detection - "will this port work for me to reach the default gateway?" (so you can even failover on an uplink outage). > I'd rather you spent that time implementing LLDP support, come to think > of it. (That would be useful on the non-Anchor probes as well.) Minimalistic LLDP support would also be nice ("device, port"). Gert Doering -- NetMaster -- have you enabled IPv6 on something today...? SpaceNet AG Vorstand: Sebastian v. Bomhard Joseph-Dollinger-Bogen 14 Aufsichtsratsvors.: A. Grundner-Culemann D-80807 Muenchen HRB: 136055 (AG Muenchen) Tel: +49 (0)89/32356-444 USt-IdNr.: DE813185279 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: <https://lists.ripe.net/ripe/mail/archives/ripe-atlas/attachments/20170720/e29b8ac4/attachment.sig>
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