At the end if the day, L3 will need to get services from L2 to set and managed constrained path based on Link attributes. 802.1Q is specifying multi-path short path bridging for this purpose and will allow to maximize the BW provide by the whole topology of the home network in a loop free manner. L3 and L2 for this manner could share the same IS-IS topology DB. All the elements are there but require to make a joint IEEE 702.1 and IETF effort
/Philippe Philippe Klein, PhD Broadcom BTG Sent from my iPhone On Feb 20, 2015, at 16:56, STARK, BARBARA H <[email protected]> wrote: >> So what I want to see is a proposal for a routing protocol that specify link >> metrics for a set of commonly used link types in homes. This spec could be >> BCP. > > Does it need to be a routing protocol? Just to throw another possible > protocol into the mix being tossed around (like we don't have enough), I'd > like to suggest that a non-routing protocol be considered for topology > discovery and sharing of link metrics. Specifically, IEEE 1905.1a could help > with this. It can provide L1 and L2 topology info with link metrics, and > identify intervening bridges that support LLDP for IEEE 802.1 bridge > discovery. I wouldn't want individual devices all doing their own 1905 > topology discovery -- that's too chatty. But if the all the homenet routers > did, and then advertised a "service" (DNS-SD) that provided a link to a > router-provider HTML page with the topology and metric info the router can > discover provided in a standardized XML or JSON syntax, then everything who > can discover that service (on each router) would have access to this info. > Applications could also make use of this info to do intelligent source > address selection in a multi-WAN-interface ne tw > ork, because routers could report on the speed of their WAN connections, as > well. > > Just a thought. I've been working on trying to get myself to write a > contribution describing the idea of the router-provided info service for a > while now. > Barbara > > _______________________________________________ > homenet mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/homenet _______________________________________________ homenet mailing list [email protected] https://www.ietf.org/mailman/listinfo/homenet
