Vijay, Jan, all,

I am replying this email publicly so that all of us can engage more in
shaping the agenda in about three weeks.

A key item that the WG needs to discuss, in the potentially more
productive f2f-meeting setting in Berlin, is how the WG should move
forward. Can we allocate a slot, say at least 20 min, for this discussion?

Besides the general discussions, here are some comments on specific agenda
items and the mission of the WG:

- Despite the substantial change of the networking landscape, I still
believe that the foundational services of ALTO are sound: providing
abstract network information to applications. I believe that this is also
what many others see ALTO; for example see [1]. The key is what we do to go
beyond the initial network abstractions.

- The first I see is Endpoint Cost Service (ECS), which is the foundation.
It provides an interface to allow applications to know the routing costs.
However, current ALTO is defined pre-SDN, and the emerging trend of SDN is
going beyond simple destination routing, to be more application dependent.
Hence, I see that we need to go beyond Endpoint Cost Service, to say Flow
Cost Service. There is an extension draft [2], and I suggest that the WG
finishes this to make the ALTO protocol complete. Make sense?

-  The next I see is network graph (path vector) abstraction. The more I
think about it, the more I am convinced that this is the way we go. I am an
author of the draft and multiple versions are evolving [3, 4, 5], but we
are relatively slow in convergence. I suggest that the WG gets a set of
active participants to finish this draft, so that we have a relatively
complete set of ALTO services.

Cheers,
Richard

[1] https://www.opendaylight.org/file/odl-beryllium-diagram02
[2] https://datatracker.ietf.org/doc/draft-wang-alto-ecs-flows/
[3]
https://datatracker.ietf.org/doc/draft-gao-alto-routing-state-abstraction/
[4] https://tools.ietf.org/html/draft-yang-alto-topology-06
[5] https://tools.ietf.org/html/draft-scharf-alto-topology-00

On Wednesday, June 29, 2016, Vijay K. Gurbani <[email protected]> wrote:

> Folks: Please send me and Jan agenda requests for the ALTO WG meeting
> in IETF.  We have a 2 hour slot on Thu afternoon (July 21).
>
> Specifically:
>
>   - Presenter name
>   - Time requested (in minutes)
>   - Internet-Draft to be discussed
>
> As usual, drafts that have seen list discussions will be given
> precedence when scheduling the agenda.
>
> As you are all aware, the deployment draft is now with the IESG.
> As per our last meeting (virtual interm [1]), we need to move two
> drafts ahead: (1) draft-ietf-alto-multi-cost-01 needs to be scheduled
> for a WGLC, and (2) draft-randriamasy-alto-cost-calendar-05 needs to be
> open up to being adopted as a WG item.  Jan and I will like to start
> proceeding on this perhaps as early as next week.
>
> [1]
>
> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ietf.org_proceedings_interim_2015_10_27_alto_minutes_minutes-2Dinterim-2D2015-2Dalto-2D1&d=CwICAg&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=4G36iiEVb2m_v-0RnP2gx9KZJjYQgfvrOCE3789JGIA&m=ASHRozEgZvFCzydTsT-P7fLIy1RVC6ciNuTtWDmqNtM&s=ghe2Ca7B5zd4u_ZWbLeZZ5oexLFxV07x-MYfkipmAk4&e=
> Thank you,
>
> - vijay
> --
> Vijay K. Gurbani, Bell Laboratories, Nokia Networks
> 1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60563 (USA)
> Email: [email protected] / [email protected]
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