RE: [Rift] kicking off the charter discussion

<7riw77@gmail.com> Thu, 11 January 2018 01:23 UTC

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From: <7riw77@gmail.com>
To: "'Alvaro Retana'" <aretana.ietf@gmail.com>, <routing-discussion@ietf.org>, <rtgwg@ietf.org>
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Subject: RE: [Rift] kicking off the charter discussion
Date: Wed, 10 Jan 2018 20:22:58 -0500
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> 	The Routing in Fat Trees (RIFT) protocol addresses the demands of
> routing in Clos and Fat-Tree networks via a mixture of both link-state and

I would tend to say "spine and leaf" here, rather than Clod -- Clos is one instance of a spine and leaf, but there are others.
 
> 	- minimize the amount of routing state held at each topology level,

It is probably useful to indicate both topology and reachability state here, as they are two different things.

> 	- allow traffic steering and re-routing policies,

This might be a little underspecified ... I think this should probably include "using metrics and policy carried within the RIFT control plane." You can always hijack a path using PCEP or something else, so the requirement, as stated, just feels a little "weak."

> 	It is important that nodes participating in the protocol should need only
> very light configuration and should be able to join a network as leaf nodes
> simply by connecting to the network using default configuration.

"very light" might be better as "minimal?" It would be nice to have something with a more definite meaning here, but Iā€™m not certain what.

> 	The protocol must support IPv6 and should also support IPv4.

In terms of carrying reachability for, or in terms of running on top of? Two different things.

šŸ˜Š /r