I-D Action: draft-li-pce-controlled-id-space-02.txt
internet-drafts@ietf.org Fri, 08 March 2019 03:31 UTC
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A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : PCE Controlled ID Space Authors : Cheng Li Mach(Guoyi) Chen Jie Dong Zhenbin Li Aijun Wang Chao Zhou Filename : draft-li-pce-controlled-id-space-02.txt Pages : 15 Date : 2019-03-07 Abstract: The Path Computation Element Communication Protocol (PCEP) provides mechanisms for Path Computation Elements (PCEs) to perform path computations in response to Path Computation Clients (PCCs) requests. The Stateful PCE extensions allow stateful control of Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Label Switched Paths (LSPs) using PCEP. Furthermore, PCEP can be used for computing paths in SR networks. Stateful PCE provide active control of MPLS-TE LSPs via PCEP, for a model where the PCC delegates control over one or more locally configured LSPs to the PCE. Further, stateful PCE could also create and delete PCE-initiated LSPs itself. A PCE-based central controller (PCECC) simplify the processing of a distributed control plane by integrating with elements of Software-Defined Networking (SDN). In some use cases, such as PCECC or Binding Segment Identifier (SID) for Segment Routing (SR), there are requirements for a stateful PCE to make allocation of labels, SIDs, etc. These use cases require PCE aware of various identifier spaces where to make allocations on behalf of PCC. This document describes a mechanism for PCC to inform the PCE of the identifier space under its control via PCEP. The identifier could be MPLS label, SID or any other to-be-defined identifier to be allocated by a PCE. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-li-pce-controlled-id-space/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-li-pce-controlled-id-space-02 https://datatracker.ietf.org/doc/html/draft-li-pce-controlled-id-space-02 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-li-pce-controlled-id-space-02 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
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