mnoptical.ofcdemo.demolib_2021

demolib.py: OFC Demo Topology and CLI

Our demo topology is a cross-connected mesh of 6 POPs.

Module Contents

Classes

OpticalTopo	Topo with convenience methods for optical links
LinearRoadmTopo	A linear network with a single ROADM and three POPs
DemoTopo	OFC Demo Topology

Functions

spanSpec(length, amp, **ampParams)	Return span specifier [length, (ampName, params)]
configureLinearNet(net[, packetOnly])	Configure linear network locally
linearRoadmTest()	Test Linear ROADM topology

Attributes

ListenPortBase
CLI
SpanSpec
AmpSpec
net

mnoptical.ofcdemo.demolib_2021.ListenPortBase = 6653

mnoptical.ofcdemo.demolib_2021.CLI

class mnoptical.ofcdemo.demolib_2021.OpticalTopo

Bases: mininet.topo.Topo

Topo with convenience methods for optical links

wdmLink(*args, **kwargs)

Convenience function to add an OpticalLink

ethLink(*args, **kwargs)

Clarifying alias for addLink

mnoptical.ofcdemo.demolib_2021.SpanSpec

mnoptical.ofcdemo.demolib_2021.AmpSpec

mnoptical.ofcdemo.demolib_2021.spanSpec(length, amp, **ampParams)

Return span specifier [length, (ampName, params)]

class mnoptical.ofcdemo.demolib_2021.LinearRoadmTopo

Bases: OpticalTopo

A linear network with a single ROADM and three POPs

h1 - s1 - t1 = r1 — r2 — r3 = t3 - s3 - h3

|| t2 - s2 - h2

h1-h3: hosts s1-s3: routers (downlink: eth0, uplink: eth1, eth2) t1-t3: terminals (downlink: eth1, eth2, uplink: wdm3, wdm4) r1-r3: ROADMs (add/drop: wdm1, wdm2, line: wdm3, wdm4)

static ip(pop, intfnum=0, template='10.%d.0.%d', subnet='/24')

Return a local IP address or subnet for the given POP

buildPop(p, txCount=2)

Build a POP; returns: ROADM

spans(spanLength=50 * km, spanCount=4)

Return a list of span specifiers (length, (amp, params)) the compensation amplifiers are named prefix-ampN

build(n=3, txCount=2)

Add POPs and connect them in a line

mnoptical.ofcdemo.demolib_2021.configureLinearNet(net, packetOnly=False)

Configure linear network locally Channel usage: r1<->r2: 1 r1<->r3: 2 r2<->r3: 1

mnoptical.ofcdemo.demolib_2021.linearRoadmTest()

Test Linear ROADM topology

class mnoptical.ofcdemo.demolib_2021.DemoTopo

Bases: LinearRoadmTopo

OFC Demo Topology

————-Linear Topo—————- POP1 – POP2 – POP3 – POP4

All of the links are bidirectional.

Each POP consists of a host, router, optical terminal, and ROADM:

h1 - s1 - t1 - r1 h2 - s2 - t2 - r2 etc.

addPopLink(src, dst)

Construct a link of four 50km fiber spans

build(n=4, txCount=10)

Add POPs and connect them in a ring with some cross-connects

mnoptical.ofcdemo.demolib_2021.net