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· FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech...

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Peter Parnes, CDT 1 ,30XOWLFDVW $Q,QWURGXFWLRQ +RZWRVROYHWKH‡PDQ\WRPDQ\· FRPPXQLFDWLRQSUREOHP" Peter Parnes LTU-CDT/Marratech AB Telia Research AB - 980827
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Page 1: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T1

,3�0

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+RZ

�WR�VROYH�WK

H�³P

DQ\�WR�PDQ\´

FRPPXQ

LFDWLRQ�SUREOHP"

Pete

r Pa

rnes

LT

U-C

DT

/Mar

rate

ch A

B

Tel

ia R

esea

rch

AB

- 9

8082

7

Page 2: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T2

Ove

rvie

w

•M

ultic

astin

g

•M

Bon

e

•A

pplic

atio

ns

•C

onfe

renc

ing

Too

ls -

MB

one

and

mSt

ar

•Pr

otoc

ols

•M

Bon

e an

d th

e In

tern

et

•U

sage

•R

esea

rch

issu

es a

nd f

urth

er d

evel

opm

ent

Page 3: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T3

Man

y to

Man

y•

How

to im

plem

ent “P

DQ\�WR�PDQ\”

traf

fic?

���&HQWUDO�VHUYHU:

Hav

e a

cent

ral s

erve

r th

atdu

plic

ates

pac

kets

to a

ll ot

her

mem

bers

.

����)XOO\��FRQQ

HFWHG�PHVK:

Let

eve

ry m

embe

rha

ve a

con

nect

ion

to a

ll/so

me

othe

rm

embe

rs.

���0

XOWLFDVWLQJ:

Let

the

netw

ork

dupl

icat

e th

epa

cket

whe

n ne

eded

.

1 an

d 2

was

tes

band

wid

th!!

!!

Page 4: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T4

IP A

ddre

ssin

g

•T

he T

CP/

IP f

amily

incl

udes

fou

r ty

pes

ofdi

stri

butio

n of

a p

acke

t fro

m a

sin

gle

host

:•8QLFDVW

: To

one

host

•“N

orm

al”

IP-t

raffi

c

•T

he p

acke

t is

“see

n” o

nly

by th

e re

ceiv

ing

host

•%URDGFDVW

: To

all h

osts

on

a ne

twor

k•

Whe

n tr

ying

to fi

nd a

noth

er h

ost

•T

he p

acke

t is

seen

by

all h

osts

on

the

loca

lne

twor

k

Page 5: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T5

IP A

ddre

ssin

g

•$Q\FDVW

: To

one

host

of

a gr

oup

of h

osts

•T

o ac

cess

a r

esou

rce

that

is s

erve

d by

sev

eral

com

pute

rs

•IP

6

•T

he p

acke

t is

“see

n” b

y on

e of

f the

rec

eivi

ngho

sts

•0XOWLFDVW

: To

a gr

oup

of h

osts

•T

he p

acke

t is

seen

by

all h

osts

in th

e gr

oup

•T

he p

acke

t is

only

dup

licat

ed w

hen

need

ed

Page 6: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T6

Mul

ticas

t vs.

Uni

cast

Page 7: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T7

Mul

ticas

ting

•M

ultic

ast t

raff

ic u

ses

a sp

ecia

l ran

ge o

fIP

-add

ress

es:

•22

4.0.

0.0

- 23

9.25

5.25

5.25

5

•A

hos

t muc

h MRLQ

a s

peci

fic

grou

p to

rece

ive

the

traf

fic

in th

at g

roup

but

can

send

to a

gro

up w

ithou

t joi

ning

.

•M

embe

rshi

p is

con

trol

led

by th

e ,*03

prot

ocol

.

Page 8: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T8

MB

one?

•T

he M

Bon

e is

bot

h a

netw

ork-

tech

nolo

gyan

d a

suite

of

tool

s.•

The

net

wor

k pa

rt is

toda

y de

ploy

ed a

s a

virt

ual n

etw

ork

on th

e In

tern

et. S

ites

need

toha

ve s

peci

al M

Bon

e-fe

eds.

The

set

up is

hand

led

man

ually

(bu

t onl

y on

ce f

or e

ach

site

)

•T

he to

ols

cons

ists

toda

y pr

imar

ily o

fco

nfer

enci

ng to

ols

but m

ore

is c

omin

g...

Page 9: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T9

App

licat

ions

•T

he M

Bon

e is

WRGD\

used

for

:•³%

URDGFDVWLQJ´

: con

fere

nces

, mee

tings

,se

min

ars,

con

cert

s an

d ra

dio-

stat

ions

are

mul

ticas

ted

daily

.

•&RQIHUHQFLQJ:

The

MB

one

is u

sed

for

trad

ition

al v

ideo

-con

fere

ncin

g (b

ut M

UC

Hch

eape

r!!)

•1HZ

V: D

istr

ibut

ion

of U

sene

t-N

ews

•0�)73

: Mul

ti-us

er F

ile T

rans

fer

Page 10: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T10

App

licat

ions

Tom

orro

w•

App

licat

ions

WRPRUURZ

incl

ude:

•6RIWZDUH�GLVWULEX

WLRQ

: For

get t

he v

ery

cost

ly p

roce

dure

of

new

sof

twar

e C

Ds

for

each

new

rel

ease

and

bug

-fix

! Ju

st s

uppl

yth

e la

test

ver

sion

in a

kno

wn

mul

ticas

t-gr

oup.

•0LUURULQJ

: Ins

tead

of

letti

ng e

ach

clie

ntfe

tch

all n

ew f

iles

from

a s

erve

r, s

end

out t

hech

ange

d fi

les

usin

g m

ultic

ast!

Page 11: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T11

App

licat

ions

Tom

orro

w

•5HDO�1

HZV:

All

new

s is

tran

smitt

ed o

n th

ene

t. In

dexe

d an

d re

ady.

(R

eute

rs h

ave

this

sinc

e 19

96!)

•79

: Why

not

wat

ch y

our

favo

urite

TV

-ch

anne

l ove

r th

e ne

twor

k?

•)LOH�&DFKHV:

If

all f

ile-r

eque

sts

are

issu

edus

ing

mul

ticas

ting

it’s

muc

h ea

sier

to c

ache

them

loca

lly!

•A

nd m

uch

muc

h m

uch.

......

Page 12: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T12

Con

fere

ncin

g to

ols

•T

he M

Bon

e to

ols

toda

y co

nsis

ts o

f:•6'

5: T

he s

essi

on d

irect

ory,

“th

e ch

anne

l-gu

ide”

•:%

: A d

istr

ibut

ed w

hite

-boa

rd (

post

scrip

tan

d te

xt)

•9,&

: A v

ideo

-too

l

•9$7�5$7

: Tw

o au

dio-

tool

s

•m

Star

!

Page 13: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T13

MB

one

bild

ext

ern!

•E

xter

n bi

ld!

Page 14: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T14

The

mSt

ar F

amily

•A

fam

ily o

f to

ols

for

scal

able

dis

trib

uted

elec

tron

ic te

amw

ork.

•It

sup

port

s a

num

ber

of d

iffe

rent

conf

eren

cing

med

ia:

•au

dio/

vide

o

•sh

ared

whi

tebo

ard,

cha

tting

, vot

ing

•W

eb b

ased

ele

ctro

nic

pres

enta

tions

Page 15: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T15

mul

ticas

t Aud

io: m

Aud

io

Page 16: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T16

Vid

eo -

VIC

Page 17: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T17

mul

ticas

t Web

: mW

eb

Page 18: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T18

mul

ticas

t Whi

teB

oard

: mW

B

Page 19: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T19

mul

ticas

t Vot

e: m

Vot

e

Page 20: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T20

mul

ticas

t Cha

t: m

Cha

t

Page 21: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T21

mul

ticas

t Med

ia O

n D

eman

d: m

MO

D

•A

s al

l tra

ffic

is n

etw

ork

and

mul

ticas

tba

sed,

it is

ver

y ea

sy to

rec

ord

it.

•m

MO

D is

ano

ther

mem

ber

of m

Star

that

supp

ort r

ecor

ding

and

late

r pl

ayba

ck.

•W

eb b

ased

con

trol

Page 22: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T22

mul

ticas

t Tun

nel:

mT

unne

l

•So

me

links

do

not s

uppo

rt m

ultic

ast

•IS

DN

, ana

log

mod

em

•m

Tun

nel a

llow

s fo

r ea

sy tu

nnel

ling

ofm

ultic

ast t

raff

ic o

ver

non-

mul

ticas

t lin

ks.

•It

als

o al

low

s fo

r tr

affi

c tr

ansf

orm

atio

n:•

reco

ding

, mix

ing,

sw

itchi

ng, s

calin

g

•T

his

allo

ws

user

s to

join

into

hig

hba

ndw

idth

ses

sion

s ev

en if

they

do

not h

ave

the

need

ed b

andw

idth

.

Page 23: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T23

mSt

ar D

esig

n Is

sues

•6FDODEOH

: The

env

iron

men

t sho

uld

scal

e to

ave

ry la

rge

num

ber

of u

sers

- ,3�0

XOWLFDVW i

s th

eso

lutio

n!

•5REXVW:

The

env

iron

men

t sho

uld

surv

ive

netw

ork

failu

res

and

not b

e de

pend

ent o

n an

yce

ntra

l ser

vice

s

•$FFHVVLEOH:

Use

rs s

houl

d be

abl

e to

par

ticip

ate

from

thei

r de

skto

p

•1HWZRUN�EDVHG:

No

need

for

any

spe

cial

ISD

Nco

nnec

tions

, jus

t the

sta

ndar

d lo

cal n

etw

ork

and

the

Inte

rnet

.

Page 24: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T24

Prot

ocol

s

MA

NY

dif

fere

nt p

roto

cols

invo

lved

with

Mul

ticas

ting

- U

DP,

RT

P, S

RM

, MT

P-2,

MT

CP

•8'3

: Use

r D

atag

ram

Pro

toco

l•

Unr

elia

ble

==

Pac

kets

can

be

lost

•T

he a

pplic

atio

ns h

as to

take

car

e of

relia

bilit

y

Page 25: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T25

RT

P

573

- R

eal-

Tim

e T

rans

fer

Prot

ocol

•D

evel

oped

by

the

IET

F (R

FC18

89/9

0)an

d la

ter

copi

ed in

to I

TU

/H.2

25.

•E

nd-t

o-E

nd tr

ansp

ort f

unct

iona

lity

for

real

-tim

e da

ta

•D

esig

ned

for

mul

ticas

ting

•C

ompl

etel

y ne

twor

k la

yer

inde

pend

ent

Page 26: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T26

Rel

iabl

e M

ultic

astin

g

•N

o st

anda

rd to

day

(IE

TF/

ITU

are

not

wor

king

on

this

pro

blem

alth

ough

sev

eral

othe

r gr

oups

are

)

•M

ultic

ast T

rans

port

Pro

toco

l 2 -

073�

•N

AC

K b

ased

•Fa

nout

TC

P - 07&3

•St

ar-t

opol

ogy

with

a T

CP

conn

ectio

n to

eac

hre

ceiv

er

Page 27: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T27

Rel

iabl

e M

ultic

astin

g

•Sc

alab

le R

elia

ble

Mul

ticas

ting

- 65

0•

NA

CK

bas

ed -

eve

ry m

embe

r pa

rtic

ipat

es in

repa

irs

and

not o

nly

the

orig

inal

sen

der

of a

pack

et

•U

sed

in th

e M

Bon

e W

B

•I

have

des

igne

d a

RT

P-ex

tens

ion

to in

clud

eSR

M.

•T

his

is to

day

impl

emen

ted

and

used

in th

em

Star

Whi

teB

oard

.

Page 28: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T28

Mor

e Pr

otoc

ols

•Se

ssio

n D

escr

iptio

n Pr

otoc

ol -

SD

P

•Se

ssio

n A

nnou

ncem

ent P

roto

col -

SA

P

•R

eal-

time

Stre

amin

g Pr

otoc

ol -

RT

SP

•Se

ssio

n In

itiat

ion

Prot

ocol

- S

IP

•R

ecei

ver-

base

d L

ayer

ed M

ultic

ast -

RL

M

•P

lus

man

y m

ore…

.

Page 29: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T29

MB

one

and

the

Inte

rnet

•T

o si

mpl

ify

the

deve

lopm

ent p

roce

ss o

fth

e M

Bon

e-ne

twor

k, it

was

fir

st d

eplo

yed

as a

vir

tual

net

wor

k us

ing

IP-t

unne

ls

•bu

t is

now

cha

nged

into

a s

tand

ard

IP-

serv

ice

==

all

rout

ers

need

to k

now

abo

utm

ultic

astin

g

•M

ultic

astin

g is

bot

h an

,QWHUQHW a

nd a

n,QWUDQHW

tech

nolo

gy

Page 30: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T30

Usa

ge S

cena

rios

of

mSt

ar

•E

lect

roni

c M

eetin

gs•

Mee

ting

usin

g yo

ur d

eskt

op c

ompu

ter

•D

ista

nce

Edu

catio

n•

Dis

trib

utio

n of

lect

ures

ove

r th

e In

tern

etw

here

par

ticip

ants

can

ask

que

stio

ns a

nd b

eac

tive

•E

lect

roni

c C

orri

dor

•D

aily

wor

k w

here

use

rs r

un th

e to

ols

24ho

urs

a da

y

Page 31: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T31

Usa

ge E

xam

ples

•E

duca

tion

Dir

ect

•D

istr

ibut

ion

of le

ctur

es to

the

coun

ty o

fN

orrb

otte

n

•E

rics

son

Eri

soft

•E

lect

roni

c m

eetin

gs a

nd te

amw

ork

betw

een

thei

rof

fice

s an

d E

rics

son

in S

tock

holm

and

oth

erco

untr

ies

•D

aily

wor

k at

CD

T•

mSt

ar is

use

d fo

r el

ectr

onic

mee

tings

, the

elec

tron

ic c

orri

dor,

mul

ticas

t of

sem

inar

s an

dco

urse

s

Page 32: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T32

Futu

re R

esea

rch

Issu

es

•M

ultic

ast a

ddre

ss a

lloca

tion

- M

AL

LO

C

•L

ayer

ed e

ncod

ings

for

bot

h au

dio

and

vide

o

•B

ette

r ba

ndw

idth

con

trol

(T

CP-

frie

ndly

)

•N

ew a

udio

and

vid

eo e

ncod

ings

that

perf

orm

bet

ter

in lo

ssy

envi

ronm

ents

.

•H

.323

/T.1

20 in

tegr

atio

n/in

tero

pera

bilit

y

•B

ette

r se

curi

ty

Page 33: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T33

Furt

her

Dev

elop

men

t of

mSt

ar

•M

arra

tech

AB

•C

olla

bora

tion

proj

ects

with

TR

AB

•R

oxy

•M

edia

Site

•E

duca

tion

Dir

ect

•C

DT

Dis

trib

uted

Sof

twar

e L

ab -

NU

TE

K

Page 34: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T34

Nat

ive

Mul

ticas

t in

Swed

en

•SU

NE

T: T

he w

hole

net

wor

k

•T

elia

: Alm

ost w

orki

ng in

the

coun

tyne

twor

k. N

othi

ng in

the

rest

of

the

prod

uctio

n ne

twor

k

•T

ele-

2: N

othi

ng y

et

•G

loba

lOne

: Ful

l nat

ive

mul

ticas

t sup

port

in th

eir

back

bone

net

wor

k

Page 35: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T35

Sum

mar

y

•IP

mul

ticas

t pro

vide

s a

scal

able

sol

utio

nfo

r “m

any-

to-m

any”

com

mun

icat

ion.

•A

num

ber

of to

ols

are

bein

g de

ploy

ed o

nth

e In

tern

et to

day

to u

tiliz

e th

e po

wer

of

IP m

ultic

ast.

•m

Sta

r be

ing

turn

ed in

to a

pro

duct

.

•N

ativ

e m

ultic

ast i

s sl

owly

bei

ng d

eplo

yed

arou

nd th

e w

orld

.

Page 36: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T36

Que

stio

ns?

SH

SS

DU

#F

GW

�O

XW

K�

VH

KW

WS

��

�Z

ZZ

�F

GW

�O

XW

K�

VH

�a

SH

SS

DU

KW

WS

��

�Z

ZZ

�F

GW

�O

XW

K�

VH

�P

6W

DU

KW

WS

��

�Z

ZZ

�P

DU

UD

WH

FK

�F

RP

Page 37: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T37

Mul

ticas

ting

and

Fire

Wal

ls

•Po

litic

al q

uest

ion 127

tech

nica

l

•T

here

is n

othi

ng s

peci

al a

bout

mul

ticas

ting

in c

ompa

riso

n to

oth

er I

P-tr

affi

c. T

here

are

fou

r so

lutio

ns to

the

Fire

Wal

l pro

blem

:1

Ope

n th

e w

all f

or a

ll m

ultic

ast-

traf

fic.

Sim

ple

and

a ro

uter

can

con

trol

whi

chne

twor

ks w

ithin

a c

ompa

ny s

houl

d ha

veM

Bon

e ac

cess

.

Page 38: · FRPPXQLFDWLRQSUREOHP Peter Parnes LTU-CDT/Marratech …staff.peppar/presentations/MCast_Telia_980827/mbone_980827.pdf · Peter Parnes, CDT 3 Many to Many • How to implement “

Pete

r Pa

rnes

, CD

T38

Mul

ticas

ting

and

Fire

Wal

ls

2Se

t up

a tu

nnel

thro

ugh

the

wal

l

3R

ent a

ded

icat

ed li

ne th

at is

n’t c

onne

cted

toth

e re

st o

f the

com

pani

es n

etw

ork

and

ison

ly u

sed

for

Mul

ticas

ting

4S

tay

behi

nd th

e re

st a

nd d

on’t

use

mul

ticas

ting

at a

ll! :-

)


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