| < draft-chen-pce-protection-applicability-17.txt | draft-chen-pce-protection-applicability-18.txt > | |||
|---|---|---|---|---|
| PCE Working Group H. Chen | PCE Working Group H. Chen | |||
| Internet-Draft Futurewei | Internet-Draft Futurewei | |||
| Intended status: Informational 24 October 2021 | Intended status: Informational 18 April 2022 | |||
| Expires: 27 April 2022 | Expires: 20 October 2022 | |||
| The Applicability of the PCE to Computing Protection and Recovery Paths | The Applicability of the PCE to Computing Protection and Recovery Paths | |||
| for Single Domain and Multi-Domain Networks. | for Single Domain and Multi-Domain Networks. | |||
| draft-chen-pce-protection-applicability-17 | draft-chen-pce-protection-applicability-18 | |||
| Abstract | Abstract | |||
| The Path Computation Element (PCE) provides path computation | The Path Computation Element (PCE) provides path computation | |||
| functions in support of traffic engineering in Multiprotocol Label | functions in support of traffic engineering in Multiprotocol Label | |||
| Switching (MPLS) and Generalized MPLS (GMPLS) networks. | Switching (MPLS) and Generalized MPLS (GMPLS) networks. | |||
| A link or node failure can significantly impact network services in | A link or node failure can significantly impact network services in | |||
| large-scale networks. Therefore it is important to ensure the | large-scale networks. Therefore it is important to ensure the | |||
| survivability of large scale networks which consist of various | survivability of large scale networks which consist of various | |||
| skipping to change at page 1, line 47 ¶ | skipping to change at page 1, line 47 ¶ | |||
| Internet-Drafts are working documents of the Internet Engineering | Internet-Drafts are working documents of the Internet Engineering | |||
| Task Force (IETF). Note that other groups may also distribute | Task Force (IETF). Note that other groups may also distribute | |||
| working documents as Internet-Drafts. The list of current Internet- | working documents as Internet-Drafts. The list of current Internet- | |||
| Drafts is at https://datatracker.ietf.org/drafts/current/. | Drafts is at https://datatracker.ietf.org/drafts/current/. | |||
| Internet-Drafts are draft documents valid for a maximum of six months | Internet-Drafts are draft documents valid for a maximum of six months | |||
| and may be updated, replaced, or obsoleted by other documents at any | and may be updated, replaced, or obsoleted by other documents at any | |||
| time. It is inappropriate to use Internet-Drafts as reference | time. It is inappropriate to use Internet-Drafts as reference | |||
| material or to cite them other than as "work in progress." | material or to cite them other than as "work in progress." | |||
| This Internet-Draft will expire on 27 April 2022. | This Internet-Draft will expire on 20 October 2022. | |||
| Copyright Notice | Copyright Notice | |||
| Copyright (c) 2021 IETF Trust and the persons identified as the | Copyright (c) 2022 IETF Trust and the persons identified as the | |||
| document authors. All rights reserved. | document authors. All rights reserved. | |||
| This document is subject to BCP 78 and the IETF Trust's Legal | This document is subject to BCP 78 and the IETF Trust's Legal | |||
| Provisions Relating to IETF Documents (https://trustee.ietf.org/ | Provisions Relating to IETF Documents (https://trustee.ietf.org/ | |||
| license-info) in effect on the date of publication of this document. | license-info) in effect on the date of publication of this document. | |||
| Please review these documents carefully, as they describe your rights | Please review these documents carefully, as they describe your rights | |||
| and restrictions with respect to this document. Code Components | and restrictions with respect to this document. Code Components | |||
| extracted from this document must include Simplified BSD License text | extracted from this document must include Revised BSD License text as | |||
| as described in Section 4.e of the Trust Legal Provisions and are | described in Section 4.e of the Trust Legal Provisions and are | |||
| provided without warranty as described in the Simplified BSD License. | provided without warranty as described in the Revised BSD License. | |||
| Table of Contents | Table of Contents | |||
| 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 | 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 | |||
| 1.1. Domains . . . . . . . . . . . . . . . . . . . . . . . . . 3 | 1.1. Domains . . . . . . . . . . . . . . . . . . . . . . . . . 3 | |||
| 1.1.1. Inter-domain LSPs . . . . . . . . . . . . . . . . . . 4 | 1.1.1. Inter-domain LSPs . . . . . . . . . . . . . . . . . . 4 | |||
| 1.2. Recovery . . . . . . . . . . . . . . . . . . . . . . . . 4 | 1.2. Recovery . . . . . . . . . . . . . . . . . . . . . . . . 4 | |||
| 1.3. Requirements Language . . . . . . . . . . . . . . . . . . 4 | 1.3. Requirements Language . . . . . . . . . . . . . . . . . . 4 | |||
| 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5 | 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5 | |||
| 3. Path Computation Element Architecture Considerations . . . . 6 | 3. Path Computation Element Architecture Considerations . . . . 6 | |||
| End of changes. 5 change blocks. | ||||
| 8 lines changed or deleted | 8 lines changed or added | |||
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