Subject: [ANCP] Re: ANCP use for smart adaptive modems?

From: Lloyd Wood <[email-masked]>
Date: Sat, 30 Jun 2007 11:24:27 +0100

We've now described this scenario in a draft at
http://www.ietf.org/internet-drafts/draft-floreani-ancp-wireless-00.txt

(Thanks for the information on the history of ANCP.)

L.

At Monday 18/06/2007 19:56 +0100, Lloyd Wood wrote:
>We have been looking at the problem of routers talking to smart adaptive wireless modems - modems that can vary their output from say 16kbps to 512kbps, or 1-6Mbps, depending on channel conditions. These modems often have ethernet ports, because ethernet is cheap, and they're connected to a router the next hop along. (There are hundreds of custom modems, so they're not built into the router directly.) But you need to rate-limit and set QoS on the router's Ethernet interface to match the modem output - and when the modem rate varies, your static QoS config is rendered useless. You can't usefully let 100Mbps go over Ethernet to the modem.
>
>So, we would need a way for the modem to signal that its output/input wireless speeds have changed, so that the router dynamically updates its QoS/rate-limiting configuration to match.
>
>So, could ANCP communication over Ethernet between modem and router be one way to solve this? is there any wider interest in using ANCP in this way, generalising from the managed DSL space?
>
>thanks,
>
>L.
>
><http://www.ee.surrey.ac.uk/Personal/L.Wood/><[email-masked]> 

_______________________________________________
ANCP mailing list
[email-masked]
https://www1.ietf.org/mailman/listinfo/ancp