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This draft is a work item of the Transparent Interconnection of Lots of Links Working Group of the IETF.
Title : The Architecture of an RBridge Solution to TRILL
Author(s) : E. Gray
Filename : draft-ietf-trill-rbridge-arch-03.txt
Pages : 35
Date : 2007-7-12
RBridges are link layer (L2) devices that use routing protocols
as a control plane. They combine several of the benefits of the
link layer with network layer routing benefits. RBridges use
existing link state routing (without requiring configuration) to
improve RBridge to RBridge aggregate throughput. RBridges also
provide support for IP multicast and IP address resolution
optimizations. They are intended to be applicable to similar L2
network sizes as conventional bridges and are intended to be
backward compatible with those bridges as both ingress/egress
and transit. They also support VLANs (although this generally
requires configuration) and otherwise attempt to retain as much
'plug and play' as is already available in existing bridges.
This document proposes an RBridge system as a solution to the
TRILL problem. It also defines the RBridge architecture, defines
its terminology, and describes basic components and desired
behavior. One or more separate documents specify the protocols
and mechanisms that satisfy the architecture presented herein.
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