Network-wide Protocol Monitoring (NPM): Use Cases
draft-chen-npm-use-cases-00

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Network Working Group                                            H. Chen
Internet-Draft                                             China Telecom
Intended status: Informational                                     Z. Li
Expires: September 12, 2019                                 China Mobile
                                                                   F. Xu
                                                                 Tencent
                                                                   Y. Gu
                                                                   Z. Li
                                                                  Huawei
                                                          March 11, 2019

           Network-wide Protocol Monitoring (NPM): Use Cases
                      draft-chen-npm-use-cases-00

Abstract

   As networks continue to scale, we need a coordinated effort for
   diagnosing control plane health issues in heterogeneous environments.
   Traditionally, operators developed internal solutions to address the
   identification and remediation of control plane health issues, but as
   networks increase in size, speed and dynamicity, new methods and
   techniques will be required.

   This document highlights key network health issues, as well as
   network planning requirements, identified by leading network
   operators.  It also provides an overview of current art and
   techniques that are used, but highlights key deficiencies and areas
   for improvement.

   This document proposes a unified management framework for
   coordinating diagnostics of control plane problems and optimization
   of network design.  Furthermore, it outlines requirements for
   collecting, storing and analyzing control plane data, to minimise or
   negate control plane problems that may significantly affect overall
   network performance and to optimize path/peering/policy planning for
   meeting application-specific demands.

Requirements Language

   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 RFC 2119 [RFC2119].

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Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on September 12, 2019.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   (https://trustee.ietf.org/license-info) in effect on the date of
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Role of Telemetry . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Role of Control Plane Telemetry . . . . . . . . . . . . .   4
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Problem Statement . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Network Troubleshooting Challenges  . . . . . . . . . . .   5
     3.2.  Network Planning Challenges . . . . . . . . . . . . . . .   7
   4.  Network-wide Protocol Monitoring (NPM)  . . . . . . . . . . .   7
   5.  NPM Use Cases . . . . . . . . . . . . . . . . . . . . . . . .   9
     5.1.  Network Troubleshooting Use Cases . . . . . . . . . . . .   9
       5.1.1.  IS-IS Route Flapping  . . . . . . . . . . . . . . . .  10
       5.1.2.  LSDB Synchronization Failure  . . . . . . . . . . . .  11
       5.1.3.  Route Loop  . . . . . . . . . . . . . . . . . . . . .  11
       5.1.4.  Tunnel Set Up Failure . . . . . . . . . . . . . . . .  12

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     5.2.  Network Planning Use Cases  . . . . . . . . . . . . . . .  12
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