Re: [spring] Understanding the replication draft
Rishabh Parekh <rishabhp@gmail.com> Wed, 01 July 2020 19:40 UTC
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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 01 Jul 2020 12:39:47 -0700
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To: Robert Raszuk <robert@raszuk.net>
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Subject: Re: [spring] Understanding the replication draft
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Robert, >A) Firmly state that replication SID MUST be the last one on the stack >B) Instead of real SID after the replication SID provide a binding SID which locally will be mapped to a different SID list imposed to each replicated flow. We would be fine with A), but we don't want to exclude possibility of something like what you describe in B. -Rishabh On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk <robert@raszuk.net> wrote: > > Hi Rishabh, > > > Of course, care must be > > taken to avoid the "explosion" as you describe it. G-SID-2 has to map > > to a unique node; for example, it may be an Anycast-SID that takes > > packet to distinct nodes from each of the downstream node, or the > > downstream nodes can be border nodes connecting to other segment > > routing domains where G-SID-2 resolves to distinct nodes in each > > domain. > > I think you are stretching it too thin. > > See even if G-SID-2 is anycast SID you have zero assurance that physical nodes packets will land on would be at all diverse. > > Likewise crossing domains yet providing identical global SID now to be a different node in each such domain to me is not a realistic example. > > I think we have two options: > > A) Firmly state that replication SID MUST be the last one on the stack > > B) Instead of real SID after the replication SID provide a binding SID which locally will be mapped to a different SID list imposed to each replicated flow. > > What is currently in the draft seems to be very counterintuitive and IMHO will result in operational difficulties. > > Thx a lot, > R.
- [spring] Understanding the replication draft Joel M. Halpern
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Joel Halpern Direct
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Robert Raszuk
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Joel M. Halpern
- Re: [spring] Understanding the replication draft Joel M. Halpern
- Re: [spring] Understanding the replication draft Robert Raszuk
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Joel M. Halpern
- Re: [spring] Understanding the replication draft Jeff Tantsura
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Dhruv Dhody
- Re: [spring] Understanding the replication draft bruno.decraene
- Re: [spring] Understanding the replication draft Dhruv Dhody
- Re: [spring] Understanding the replication draft Alexander Vainshtein
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Jeff Tantsura
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Xiejingrong (Jingrong)
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Xiejingrong (Jingrong)
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Xiejingrong (Jingrong)
- Re: [spring] Understanding the replication draft Rishabh Parekh
- Re: [spring] Understanding the replication draft Xiejingrong (Jingrong)