Some Thoughts on Multi-Domain Routing

Status of this Memo This internet draft is an informal proposal. It is hoped that this work may influence future Internet Standards, but this draft does not represent a standard. This paper represents the personal opinion of the author, although some of the ideas presented are borrowed from other sources. Abstract Frequently a router may have multiple sources of information about paths through the network. For example, a router may be simultaneously learning routes from multiple routing domains, and may have static routes configured by the network manager. This paper presents a proposal for control of interactions between multiple routing protocols, including choice of routes when multiple IP routing protocols are being used simultaneously, as well of exchange of routes between routing protocols. This paper has been inspired by the two papers "Ruminations on the Next Hop" and "Ruminations on Route Leaking" by Philip Almquist, as well as by many conversations with Philip and with Chris Gunner. Comments should be sent to “[email protected]”.