Re: [trill] Explaining three options for upgrading to FGL (fine-grained-labeling)
Anoop Ghanwani <anoop@alumni.duke.edu> Wed, 30 January 2013 00:03 UTC
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From: Anoop Ghanwani <anoop@alumni.duke.edu>
To: Donald Eastlake <d3e3e3@gmail.com>
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Cc: 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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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 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? 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? Anoop
- [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