Network Working Group D. Caviglia
Request for Comments: 5493 D. Bramanti
Category: Informational Ericsson
D. Li
Huawei Technologies Co., Ltd.
D. McDysan
Verizon
April 2009
Requirements for the Conversion between
Permanent Connections and Switched Connections in a
Generalized Multiprotocol Label Switching (GMPLS) Network
Status of This Memo
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not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
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Caviglia, et al. Informational [Page 1]
RFC 5493 Conversion between PC and SC in GMPLS April 2009
Abstract
From a carrier perspective, the possibility of turning a permanent
connection (PC) into a soft permanent connection (SPC) and vice
versa, without actually affecting data plane traffic being carried
over it, is a valuable option. In other terms, such operation can be
seen as a way of transferring the ownership and control of an
existing and in-use data plane connection between the management
plane and the control plane, leaving its data plane state untouched.
This memo sets out the requirements for such procedures within a
Generalized Multiprotocol Label Switching (GMPLS) network.
Table of Contents
1. Introduction ....................................................3
1.1. Conventions Used in This Document ..........................3
2. Label Switched Path Terminology .................................3
3. LSP within GMPLS Control Plane ..................................4
3.1. Resource Ownership .........................................4
3.2. Setting Up a GMPLS-Controlled Network ......................5
4. Typical Use Cases ...............................................6
4.1. PC-to-SC/SPC Conversion ....................................6
4.2. SC-to-PC Conversion ........................................6
5. Requirements ....................................................7
5.1. Data Plane LSP Consistency .................................7
5.2. No Disruption of User Traffic ..............................7
5.3. Transfer from Management Plane to Control Plane ............7
5.4. Transfer from Control Plane to Management Plane ............7
5.5. Synchronization of State among Nodes during Conversion .....7
5.6. Support of Soft Permanent Connections ......................8
5.7. Failure of Transfer ........................................8
6. Security Considerations .........................................8
7. Contributors ....................................................9
8. Acknowledgments .................................................9
9. References ......................................................9
9.1. Normative References .......................................9
9.2. Informational References ..................................10
Caviglia, et al. Informational [Page 2]
RFC 5493 Conversion between PC and SC in GMPLS April 2009
1. Introduction
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