Browse Prior Art Database

Network Hierarchy and Multilayer Survivability (RFC3386)

IP.com Disclosure Number: IPCOM000010233D
Original Publication Date: 2002-Nov-01
Included in the Prior Art Database: 2002-Nov-08
Document File: 28 page(s) / 65K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

W. Lai: AUTHOR [+4]

Abstract

This document presents a proposal of the near-term and practical requirements for network survivability and hierarchy in current service provider environments.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 4% of the total text.

Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � W. Lai, Ed.

Request for Comments: 3386� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � AT&T

Category: Informational� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � D. McDysan, Ed.

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � WorldCom

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � November 2002

� � � � � � � � � � � Network Hierarchy and Multilayer Survivability

Status of this Memo

� � This memo provides information for the Internet community.� It does

� � not specify an Internet standard of any kind.� Distribution of this

� � memo is unlimited.

Copyright Notice

� � Copyright (C) The Internet Society (2002).� All Rights Reserved.

Abstract

� � This document presents a proposal of the near-term and practical

� � requirements for network survivability and hierarchy in current

� � service provider environments.

Conventions used in this document

� � The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",

� � "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this

� � document are to be interpreted as described in BCP 14, RFC 2119 [2].

Lai, et. al.� � � � � � � � � � � � � � � � Informational� � � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3386� � � � � � � � � Hierarchy & Multilayer Survivability� � � � November 2002

Table of Contents

� � 1. Introduction..............................................2

� � 2. Terminology and Concepts..................................5

� � 2.1 Hierarchy................................................6

� � 2.1.1 Vertical Hierarchy.....................................5

� � 2.1.2 Horizontal Hierarchy...................................6

� � 2.2 Survivability Terminology................................6

� � 2.2.1 Survivability..........................................7

� � 2.2.2 Generic Operations.....................................7

� � 2.2.3 Survivability Techniques...............................8

� � 2.2.4 Survivability Performance..............................9

� � 2.3 Survivability Mechanisms: Comparison....................10

� � 3. Survivability............................................11

� � 3.1 Scope...................................................11

� � 3.2 Required initial set of survivability mechanisms........12

� � 3.2.1 1:1 Path Protection with Pre-Established Capacity.....12

� � 3.2.2 1:1 Path Protection with Pre-Planned Capacity.........13

� � 3.2.3 Local Restoration.....................................13

� � 3.2.4 Path Restoration......................................14

� � 3.3 Applications Supported..................................14

� � 3.4 Timing Bounds for Survivability Mechanisms..............15

� � 3.5 Coordination Among Layers...............................16

� � 3.6 Ev...