Soft State Switching A Proposal to Extend RSVP for Switching RSVP Flows

Document Type Expired Internet-Draft (individual)
Last updated 1997-08-25
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This memo describes a mechanism for establishing a switched path with guaranteed Quality of Service for RSVP [1] flows in a MultiProtocol Label Switching (MPLS) environment. It proposes an extension to the RSVP protocol that allows the establishment of a sequence of label switched hops along the hop-by-hop routed path by enabling adjacent nodes to exchange MPLS labels [11]. The labels may correspond to information that identifies a layer 2 virtual connection; for example, the VPI/VCI value in the case of an ATM-based infrastructure.


Arun Viswanathan (
Steven Blake (
Vijay Srinivasan (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)