RFC 1863 (rfc1863) - Page 3 of 16
A BGP/IDRP Route Server alternative to a full mesh routing
Alternative Format: Original Text Document
RFC 1863 A BGP/IDRP Route Server October 1995
2. Terms And Acronyms
The following terms and acronyms are used in this paper:
Routing Domain - a collection of routers with the same set of
routing policies. For IPv4 it can be identified
with an Autonomous System Number, for IPv6
it can be identified with a Routing Domain
Identifier.
Border Router (BR) - a router that acquires external routes, i.e.
routes to internet points outside its routing
domain.
Route Server (RS) - a process that collects routing information
from border routers and distributes this
information to 'client routers'.
RS Client (RC) - a router than peers with an RS in order to
acquire routing information. A server's client
can be a router or another route server.
RS Cluster (RSC) - two or more of route servers that share the same
subset of clients. A RS Cluster provides
redundancy of routing information to its
clients, i.e. routing information is provided
to all RS Cluster clients as long as there is
at least one functional route server in the RS
Cluster.
RCID - Cluster ID
3. RS Model
In the proposed scheme a Route Server (RS) does not apply any
selection criteria to the routes received from border routers for the
purpose of distributing these routes to its clients. All routes
acquired from border routers or other Route Servers are relayed to
the client border routers.
There can be two classes of Route Servers: Route Servers that relay
external routes between routers in a single routing domain and Route
Servers that relay external routes between border routers in
different routing domains. The former are Intra-Domain Route Servers
and the latter are Inter-Domain Route Servers.
In the RS model proposed in this document there is no routing
exchange between Intra-Domain Route Servers and Inter-Domain Route
Haskin Experimental