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Network Topology model Network Topology model

Network Topology model - PowerPoint Presentation

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Uploaded On 2017-01-18

Network Topology model - PPT Presentation

draftclemmi2rsyangnetworktopo00txt Jan Medved jmedvedciscocom Nitin Bahadur nitinbjunipernet Alexander Clemm alexciscocom Hariharan Ananthakrishnan hananthajunipernet ID: 511317

model topology link igp topology model igp link node topologies links nodes network ospf structure point cisco isis data

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Slide1

Network Topology modeldraft-clemm-i2rs-yang-network-topo-00.txt

Jan Medved,

jmedved@cisco.com

Nitin Bahadur,

nitinb@juniper.net

Alexander Clemm,

alex@cisco.com

Hariharan

Ananthakrishnan,

hanantha@juniper.net

Tony Tkacik,

ttkacik@cisco.com

Robert Varga,

rovarga@cisco.comSlide2

Purpose

Data

model for

n

etwork

t

opologies

Generic topology model, extensions for specific topologies

L3

Unicast

IGP

,

OSPF

, IS-IS as part of this draft

Can be extended for other topologies

Specified using

YANG

Applications

Data nodes capture and reconcile their understanding of network topology, propagate topology info

Network controllers represent controller network topology Slide3

AdoptionImplementation shipping in

OpenDaylight

since February

Export of topology gleaned from BGP/LS

Export of LERs attached via

PCEP

ODL-private extension for PCEP

Proposed to become one of the core ODL modelsSlide4

Next stepsRe-issue the draft

Split the L3-specific models into separate draft

Do we need a separate information model?Slide5

Model structure

Topology

Node

Link

Termination Point

Links connect nodes, are terminated by termination points

Topologies can refer to underlay topologies

Links can refer to underlay links

Nodes can refer to underlay nodes

Unidirectional, point-to-point links

represent non-

ptp

through hierarchies of nodes linksSlide6

Model structure

(contd.)

Network Topology

IGP

T

opology

OSPF Topology

ISIS

T

opology

Other topologies

(future)

TED

Generic topology model

Traffic engineering data definitions, used in multiple topologies

Model allows for multiple levels of refinement

Additional topologies can be added at any refinement levelSlide7

Questions?Slide8

BackupSlide9

Model structure (contd.)

Topology

Node

Link

Termination Point

IGP Topology

IGP

link

IGP

node

prefix

Derive IGP topology model elements

Integrity rules ensure links, nodes, topology of matching typeSlide10

Model structure (contd.)

Topology

Node

Link

TP

IGP Topology

IGP

link

IGP

node

prefix

OSPF

topo

ISIS

topo

ISIS

link

OSPF

link

ISIS

node

OSPF

node

Pattern

recurses