A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : TRILL Routing Requirements in Support of RBridges
Author(s) : E. Gray
Filename : draft-gray-trill-routing-reqs-00.txt
Pages : 12
Date : 2006-2-24
RBridges provide the ability to have an entire campus, with multiple
physical links, look to IP like a single subnet. The design allows
for zero configuration of switches within an RBridge campus, optimal
pair-wise routing, safe forwarding even during periods of temporary
loops, and the potential ability to cut down on Address Resolution
Protocol (ARP) and/or Neighbor Discovery (ND) traffic. The design
supports VLANs, allows forwarding tables to be based on destinations
within the RBridge campus (rather than endnode destinations, allowing
internal forwarding tables to be smaller than in conventional bridge
systems) and re-uses existing routing protocols (for distribution of
reachability of destinations and shortest path computation within an
RBridge campus, and potentially for peer/topology discovery).
In order to accomplish this, the design may impose requirements for
extensions to one or more existing routing protocols necessary to
accomplish the distribution and computation processes, as well as
specific limits on interactions between bridge, R-Bridge and Router
instances.
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