C01 Tellabs 8600 Overview

7/23/2019 C01 Tellabs 8600 Overview

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Tellabs 8600 Overview



Objectives

> Tellabs 8600 system introduction

> Basic technologies

> Tellabs 8600 applications




1 Tellabs 8600 System Introduction

Basic Technologies

! Tellabs 8600 "pplications



Tellabs 8600 #anaged $dge System

> %ac&et switched ne't(generation plat)orm )or buildingadvanced telecommunications networ&s and services

> Tellabs 8600 managed edge system is positioned in the

access networ& to provide )ollowing applications

> #obile transport )or * to !* and beyond

> #anaged +,+! -%.s and Broadband service aggregation

> #ultiservice aggregation )or e'isting Tellabs 8100 and 6!00

services

> "ll the services are managed with the Tellabs 8000

networ& manager



Tellabs 8660 $dge Switch

> +1,+,+! services

> +ocated at mobile /. sites

> !234 *bps switching

capacity 5bi(dir

> Switching in line cards

> %rotected control plane

> #ultiprotocol support



Tellabs 86!0 "ccess Switch

> +1,+,+! services

> +ocated at mobile 7B sites

or /. sites

> !2314 *bps switching

capacity 5bi(dir

> Switching in line cards

> %rotected control plane




Tellabs 860 "ccess Switch

> +1,+,+! services

> sed as access aggregation element

> !2 *bps switching capacity 5bi(dir





> +1,+ services

> Targeted to mobile networ&

> small hub and cell sites

>"ll common )unctions integrated

> 7igh level o) modularity

> 1 power )eed module5s : ;

> p to three line modules

> !00 #bit,s throughput 5bi(dir





> +1,+ services

> Targeted to mobile networ&

small hub and cell sites

> "ll common )unctions integrated

> !00 #bit,s throughput 5bi(dir




Tellabs 8606 $thernet "ggregator

> Tellabs 8606 $thernet "ggregator > $thernet -+". switch

> <ast $thernet and *igabit $thernet ports

> sed in applications where multiple $thernet ports are needed

> plin& to Tellabs 8660,86!0,860



Tellabs 8000 .etwor& #anager

> #anages Tellabs6!00,9100,8100,8600,8800

networ&s

> Tools )or 8600

> .etwor& building

> Service provisioning

> Testing

> <ault management

> %er)ormance management

> Scales )or large networ&s> Open inter)aces )or OSS

integration





Basic Technologies




=hat is #%+S>

> #ultiprotocol +abel Switching ? #%+S> #ultiple protocols and networ&ing technologies can

be adapted to common #%+S 5core networ&

> +abels are used in pac&et )orwarding

<rame /elay

$thernet

5-+".s

"T#

%OS

Serial

+in&s#%+S

T;#



=hy #%+S>

> =ith #%+S@ reliable connection(orientedservices are brought to connectionless I% networ&

> <uture proo) plat)orm )or operators

> #igration )rom the legacy plat)orms such as </@ "T#@

$thernet and leased lines

> AoS and Tra))ic $ngineering

> *uaranteed AoS with pac&et prioritiation

> Bandwidth reservations and bandwidth releases in lin&s

> <ast rerouting possibilities

> Supports + and +! -%.s with additional label stac&



#%+S 5Shim 7eader <ormat

> #%+S shim header consists o) 4 bytes

> +abel )ield tells the label o) the pac&et

> $'p )ield can be used )or di))erent enhancements

> S5tac& )ield in)orms whether there are multiple shim headersstac&ed in one pac&et

> TT+ )ield in)orms Time To +ive value )or pac&et and is used

similarly as I% pac&et TT+

Label Exp S TTL

20 bits 3 bits 1 bit 8 bits



/outer /olesin Traditional #%+S .etwor&

> +abel Switch /outers 5+S/s are routers or switches

handling #%+S> +abel $dge /outers 5+$/s are +S/s at the edge o) #%+S

networ&s

> +abel Switched %ath 5+S% is end(to(end signalledconnection in #%+S networ& between +$/s

+$/

+S/

+S/+$/

+S%

Ingress

$gress



#%+S Signaling

> #%+S signaling is needed to

> reate and distribute labels )or outer and inner +S%s

> Outer +S%

> ;irects the tra))ic to correct destination node inside #%+Snetwor&

> Inner +S%

> Is needed with the -%. services

> Inner +S% carries -%. tra))ic to the other endpoint5s o) the-%.



#%+S Signaling Options

> Outer +S% signaling options> +;%@ +abel ;istribution %rotocol

> Signals outer +S% when no tra))ic engineering is needed

> /S-%(T$@ /esource /eservation %rotocol with Tra))ic $ngineeringe'tensions

> Signals outer +S% when tra))ic engineering needed> Static signaling

> needed )or third party interoperability

> Inner +S% signaling options

> Targeted +;%

> sed )or distributing pseudo wire labels dynamically

> Static

> sed as an alternative )or Targeted +;%

> #%(B*%

> sed in I% -%. application



#%+S +abel Operations

> I) the outer +S% is already signaled@ there are three operations done to I%pac&et when it travels to its destination

> %ush

> "ttach a new label to an I% pac&et> Swap

> Incoming label is replaced with the outgoing one

> %op

> +abel is removed

I% pac&et +abel

%S7

I% pac&et +abel+abel

S="%

I% pac&et +abel

%O%

+$/ +$/+S/



"utonomous Systems and /outing

"S !4 268

"S !4 269

"S !4 290

*ateway operator

Operator

Operator !

$*%

$*%

$*%

"S !4 26C

Operator 1

> "S is a set o) routers under a single technical administration 5eg telecom operator

> Speci)ied with a uniDue I; 5range 1 ( 64211 , 6421 ( 622!2> I*% : Interior *ateway %rotocols inside "Ss

> <or e'ample OS%< or IS(IS

> $*% : $'terior *ateway %rotocols between "Ss

> B*%

I*%

5OS%< or IS(IS

inside "S



=hy Is OS%< .eededin #%+S .etwor&>

> Operator needs OS%< )or creating connectivity between

operator +S/s> <inally all routers should reach each other inside operator "S

> #%+S will use routing path selection )or its +S%s



The Best /oute Selection

> Best route calculation is based on lin& metric values

> #etric value is calculated using the lin& bandwidth

> The best route according to metric is selected )rom OS%< +S" database and

stored to I% routing table

> *lobal re)erence bandwidth and inter)ace metric values can be modi)ied to alter

route selection

10

67

100

10

100

10

" B

The best route

between " and B



$'ample o) I% /outing Table

> /outing table contains

pre)erred paths to

destinations

> $ntries chosen )rom di))erent sources

> onnected inter)aces

> Static,de)ault routes

> /outing protocols



"ctivating +abel Switching in +S/

> +;% signaling protocol automatically establishes +S%s to

I% destination addresses )ound )rom I% routing table> ;ata )orwarding is done a)ter that using the label

)orwarding table instead o) the I% routing table

I% pac&et +abel

LSR LSR



<orwarding $Duivalence lass 5<$

> <$ is a group o) I% pac&ets that are )orwarded in a same

manner

> %ac&et to <$ done at ingress

> <$ entry is a destination address )rom I% routing table

> +abel )ield identi)ies the label value to be used

<$ Operation Out +abel Out I< .e't 7op /oute Type

0001 %ush 86400 %1 +;%

!0!0!01 %ush 86401 ! %! +;%



7ow <$ Table Is <ormed>

> .etwor& elements advertise I% reachability in)ormation using OS%<

+S" messages

> "ll routes stored in +S" database

> The I% /outing table selects Ethe bestE routes )rom +S" databaseso that there is one route per I% destination

> The <$ table pic&s up the best route )rom the I% routing table

> +abel value )or each <$ is signalled with +;%

OS%< +S"

;B

I% /outing

Table<$ Table

I% routing I% routing F label switching



I% with +abel Switching

<$ +abel .e't 7op /oute Type

20.20.20.1 88 P1 LDP

30.30.30.1 32 P3 LDP

<$ to ne't hop table %$ 1

OS%<

IS(IS+abel

Switching

+;%%

%

%

%$ !

%$

I%,#%+S ore

%!

I%,#%+S ore

;estination #etric .e't 7op /oute Type

10.10.10.1 1 - connected

20.20.20.1 P1 !SP"

30.30.30.1 3 P3 !SP"

/outing Table %$ 1

%$ 1

88I%%1

I%

0001

!0!0!01

1010101



Introduction to Tra))ic $ngineering

> Tra))ic engineering helps the operator to> ontrol networ& capacity utiliation

> "void bottlenec&s in the networ&

> The operator needs )ollowing new components

> OS%<(T$

> Tra))ic $ngineering e'tensions to e'isting OS%< protocol

> /S-%(T$

> /S-% protocol with Tra))ic $ngineering e'tensions

> "dmission control

> Is needed )or capacity reservations in networ& elements



Terminology

> .etwor& $ngineering

> %ut the bandwidth where the tra))ic is

> Tra))ic $ngineering

> %ut the tra))ic where the bandwidth is

Source ;estination

#i$$est #% needs&



.etwor& $ngineering

> #echanisms

> +in& capacity upgrades

> #etric manipulation 5<or e'ample OS%<

> +imitations

> Some lin&s become underutilied or overutilied

> Trial(and(error approach

> $'pensive due to wasted capacity

Source ;estination

11

1

1

1



> OS%< algorithm counts only metric values o) the lin&s

> This causes congestion on certain lin&s and parts o)networ& while others remain unused

7eavy congestion in lowmetric lin&s

10

67

100

10

100

10

" B

OS%< /outing %roblem

" lot o) bandwidth availableG



Tra))ic $ngineering

> Optimies

> /esource utiliation with bandwidth allocation mechanism

> Tra))ic per)ormance by avoiding congested lin&s

> O))ers reliable networ& operations

Source ;estination

100# T$(tunnel

)or -oI% needed

0 0 #

l e ) t

00# le)t

0 0 # l e ) t

'0( le)t

C 0 # l e

) t C 0

# l e ) t

90# T$(tunnel )or

Business ;ata

needed

OS%< ith T ))i $ i i



> OS%<(T$ with S%< algorithm calculates best paths

according to available bandwidths> ongested lin&s are avoided

> Bandwidth in)ormation between .$s is advertised in a new+S" that is designed only )or that purpose

" B

The best route based onavailable bandwidth

in)ormation

OS%< with Tra))ic $ngineering$'tension 5OS%<(T$

10

100

10

100

1067



/S-%:T$

> Based on e'isting internet standard@/esource /eservation %rotocol 5/S-%

> /S-%(T$ is able to

> Signal +S% capacity reservations through the #%+S networ&

> Signal +S% via path calculated by S%< 5autorouting

> $'plicitly route +S%s 5manual routing

> /S-%(T$ +S%s 5T$ tunnels are unidirectional

> ;i))erent capacities can be used in the tunnel between twoendpoints



> Ingress +S/ initiates connection

> %ath messages sent downstream

> /eservation messages sent upstream

> /esv allocates resources at each +S/

Ingress $gress

+S/1 +S/ +S/!

/esv5+abel 1C

%ath %ath

/esv5+abel 8

+S% Set(up with /S-%(T$



"dmission ontrol

>"dmission control decides i) a new resource allocation

can be accepted by a certain networ& element

> "dmission control consists o) Bandwidth onstraints 5B

and onnection "dmission ontrol 5" algorithm

> B is a ma'imum amount o) reservable bandwidthper inter)ace,class type

> .ew bandwidth reDuest is made by /S-%(T$ to .$

> " compares inter)ace unreserved bandwidth with a

reDuested bandwidth and ma&es a reservation i) possible



reating Tra))ic $ngineered +S%

1 T$ +S% )rom " to B is de)ined with OS%<(T$,S%< algorithm

T$ +S% with reDuired capacity is signaled /S-%(T$

! " reserves bandwidth )rom the inter)aces

.ote that user tra))ic must be policed in the ingress node to

restrict tra))ic coming to the T$ +S%G

Signalling Subject to "

+;% .o

/S-%(T$ Hes,.o

B

+S% capacity reservation included in the /S%-(T$ %ath message

" B



I% with #%+S and T$

OS%<(T$

IS(IS(T$

+;%

/S-%(T$%

%

%

%$ !

%$

I%,#%+S ore

%!

I%,#%+S ore

0001

%$ 1

%1

T$ Tunnel , /eal Time

;estination #etric .e't 7op /oute Type

10.10.10.1 1 - connected

20.20.20.1 3 P1 !SP"

30.30.30.1 2 P3 !SP"

/outing Table %$ 1

/S-% Signalling

<$ +abel .e't 7op /oute Type

20.20.20.1 88 P1 LDP

20.20.20.1 7* TE T+nnel,RT RSP

<$ to ne't hop table %$ 1

%

I%,#%+S ore

%!

I%,#%+S ore

%$

!0!0!01

1010101

I%

92I%



I% with #%+S and T$ Summary

> The operator can easily control networ& capacity

utiliation and prevent bottlenec&s by e'tending e'isting

#%+S networ& with OS%<(T$@ /S-%(T$ and admission

control

> "dvantages

> =ith AoS capable routers the operator is able to provide

end(to(end AoS )or customers

> $nables bandwidth reservations and bandwidth releases> $nables manual routing o) +S%s





Basic Technologies




Tellabs 8600 ( Target "pplications

I%,#%+S

ore

/esidential,

SO7O

#T5/esidential

Internet

7igh $nd

orporation

#anaged

/egional and

"ccess

#obile5!*F*

/.

"dvances mobile

networ&s )rom * to

!* and beyond

O))ers managed I%

-%.s@ -%=S and

Broadband service

aggregation

Supports multiservice

aggregation )or

e'isting Tellabs 8100

and 6!00 services

.etwor& #anager

#obile Transport



#obile TransportSingle Transport )or * and !*

> * T;# transport> T;# circuit emulation over

#%+S networ& using pseudo

wires

> <ull $1,T1 or timeslot level

connectivity

> !* "T# or I% transport

> "T# tunneling over #%+S or I%

networ& using pseudo wires

> "T# -% or -%,- endpoints

> I% aggregation

/.

BS

!*

"T#

*

T;#

%seudo =ires over

#%+S 5or I%

# d I% -%.



#anaged I% -%.7ierarchical and <lat /< 249bis

> #ultipoint I% connectivity with

several topology alternatives

> ustomer speci)ic routing tables

5-/<s

> B*% advertises -/< content

over the #%+S networ&

ore .etwor&

"ccess

.etwor&

"ccess

.etwor&

ustomer Site 1

ustomer Site

ustomer Site !

.(%$

.(%$

(%$

(%$

.(%$

#%(eB*% #%(eB*%

<ully meshed#%(iB*%

"ccess

.etwor&

-/< -/<

-/<

-/<-/<

# d $th t S i



#anaged $thernet Services$thernet %seudo =ire #esh -%.s

> Transparent $thernet tunneling over #%+S

> Tunnel endpoint can be $thernet port or -+". I;

.(%$

(%$

.(%$

(%$ %= %=

%= %=

B db d S i " ti



Broadband Service "ggregation#T@ =i<i and ;S+"# "ccess

I%,$thernet,#%+S

/egional networ&

Service

%rovider

se/ n

se/ ns

se/ ns

;7%""" ./

8660

860'

;S+"# aggregation

#T access

=i<i access

%=$ tunnels

Internet

*=

Termination to I% routing

B/"S

# lti i " ti



#ultiservice "ggregation#igrating with Tellabs 6!00 and 8100

Tellabs

8100,6!00

Tellabs 8600

I%,#%+S

$thernet -+". -%.

mapping to $thernet

pseudo wires or I% -%.s

%$

%$

%$

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C01 Tellabs 8600 Overview