Re: [trill] Explaining three options for upgrading to FGL (fine-grained-labeling)
Jon Hudson <jon.hudson@gmail.com> Wed, 30 January 2013 20:41 UTC
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From: Jon Hudson <jon.hudson@gmail.com>
Date: Thu, 31 Jan 2013 04:40:43 +0800
To: Sam Aldrin <aldrin.ietf@gmail.com>
Cc: Donald Eastlake <d3e3e3@gmail.com>, Anoop Ghanwani <anoop@alumni.duke.edu>, Radia Perlman <radiaperlman@gmail.com>, Ayan Banerjee <ayabaner@gmail.com>, "trill@ietf.org" <trill@ietf.org>
Subject: Re: [trill] Explaining three options for upgrading to FGL (fine-grained-labeling)
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Can you clarify on what you mean by deploy? I ask because I have many customers waiting for this functionality. Everyone of the ~1000 installs we have, that also have multitenancy environments plan to deploy this as soon as possible. But with no one have I gone through and done a Visio of how their Rbridges are wired up today and how FGL rbridges would be integrated gracefully into the environment. On Jan 31, 2013, at 3:55 AM, Sam Aldrin <aldrin.ietf@gmail.com> wrote: > [still catching up on email, so the delay] > > When everyone says, upgrade RBridges, what is the upgrade model they have in mind? > How can one do software upgrade when hardware/silicon cannot support? > Secondly, any actual users, not vendors, commented on how they plan to deploy FGL? > > -sam > > On Jan 29, 2013, at 4:37 PM, Donald Eastlake <d3e3e3@gmail.com> wrote: > >> Hi Anoop, >> >> On Tue, Jan 29, 2013 at 7:03 PM, Anoop Ghanwani <anoop@alumni.duke.edu> wrote: >>> On Tue, Jan 29, 2013 at 12:49 PM, Donald Eastlake <d3e3e3@gmail.com> wrote: >>> >>>> The general assumption is that you are migrating from VL to FGL. First >>>> you migrate to FGL-safe. Then you unleash the FGL traffic, by >>>> configuring FGL ports, which isolates any remaining (FGL-unsafe) VL >>>> switches while still being able to handle VL traffic between VL ports >>>> on FGL-safe switches. >>> >>> Based on what is written so far, it looks like as long as there is even >>> one VL RBridge in it's database, an RBridge would not be able to start >>> sourcing FGL traffic. It may start doing so only when all RBridges in >> >> Well, it can start sourcing FGL traffic but their are consequences as >> you note below. >> >>> its database are FGL-safe. If we ever get into a condition where >>> an RBridge has started advertising FGL information, at that point, >>> does any other RBridge in the campus simply isolate any VL RBridge >>> (with the assumption that there was some kind of race condition? >> >> Yes. (This could just be due to some misconfiguration.) >> >>> The case I'm concerned about is we have 2 FGL RBridges, RB1 and RB2. >>> RB1 is connected to a campus of n RBs that are still VL only. The VL link >>> Breaks, and RB1 starts advertising FGL information to RB2, but then >>> the link to the VL campus comes back up. Does this mean RB1 and RB2 >>> remain isolated from the campus (and operate as they own mini-campus) >>> until all the other RBridges are converted over to FGL-safe? >> >> Yes. But I don't think this as much of a problem given that I believe >> existing TRILL switches can be software upgraded to be FGL-safe. I >> view the configuration of FGL ports on RB1/RB2 and the consequent >> routing of actual FGL traffic to be an active network management >> decision, not something that might just happen because there appear to >> be no more VL TRILL switches in the topology. >> >> Thanks, >> Donald >> ============================= >> Donald E. Eastlake 3rd +1-508-333-2270 (cell) >> 155 Beaver Street, Milford, MA 01757 USA >> d3e3e3@gmail.com >> >>> Anoop >> _______________________________________________ >> trill mailing list >> trill@ietf.org >> https://www.ietf.org/mailman/listinfo/trill > > _______________________________________________ > trill mailing list > trill@ietf.org > https://www.ietf.org/mailman/listinfo/trill
- [trill] Explaining three options for upgrading to… Radia Perlman
- [trill] 答复: Explaining three options for upgradin… Haoweiguo
- Re: [trill] 答复: Explaining three options for upgr… Radia Perlman
- [trill] 答复: 答复: Explaining three options for upgr… Haoweiguo
- Re: [trill] Explaining three options for upgradin… Anoop Ghanwani
- Re: [trill] Explaining three options for upgradin… Donald Eastlake
- Re: [trill] 答复: 答复: Explaining three options for … Donald Eastlake
- Re: [trill] Explaining three options for upgradin… Ayan Banerjee
- Re: [trill] Explaining three options for upgradin… Donald Eastlake
- Re: [trill] Explaining three options for upgradin… Ayan Banerjee
- Re: [trill] Explaining three options for upgradin… Anoop Ghanwani
- Re: [trill] Explaining three options for upgradin… Donald Eastlake
- Re: [trill] Explaining three options for upgradin… Ayan Banerjee
- Re: [trill] Explaining three options for upgradin… Donald Eastlake
- [trill] 答复: 答复: 答复: Explaining three options for … Haoweiguo
- Re: [trill] Explaining three options for upgradin… Yizhou Li
- Re: [trill] Explaining three options for upgradin… Tal Mizrahi
- Re: [trill] Explaining three options for upgradin… hu.fangwei
- Re: [trill] Explaining three options for upgradin… zhai.hongjun
- Re: [trill] Explaining three options for upgradin… Sam Aldrin
- Re: [trill] Explaining three options for upgradin… Linda Dunbar
- Re: [trill] Explaining three options for upgradin… Jon Hudson
- Re: [trill] Explaining three options for upgradin… Sam Aldrin
- Re: [trill] Explaining three options for upgradin… Jon Hudson
- Re: [trill] Explaining three options for upgradin… Sam Aldrin
- Re: [trill] Explaining three options for upgradin… Tissa Senevirathne (tsenevir)
- Re: [trill] Explaining three options for upgradin… Radia Perlman
- Re: [trill] Explaining three options for upgradin… Olen Stokes
- Re: [trill] Explaining three options for upgradin… Radia Perlman
- [trill] 答复: Explaining three options for upgradin… Haoweiguo
- Re: [trill] 答复: Explaining three options for upgr… Radia Perlman
- [trill] 答复: 答复: Explaining three options for upgr… Haoweiguo
- Re: [trill] Explaining three options for upgradin… Jon Hudson