Date post: | 18-Feb-2018 |
Category: |
Documents |
Upload: | marco-mejia |
View: | 244 times |
Download: | 2 times |
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 1/46
Tellabs 8600 Overview
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 2/46
Objectives
> Tellabs 8600 system introduction
> Basic technologies
> Tellabs 8600 applications
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 3/46
Tellabs 8600 Overview
1 Tellabs 8600 System Introduction
Basic Technologies
! Tellabs 8600 "pplications
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 4/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 5/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 6/46
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
> #ultiprotocol support
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 7/46
Tellabs 860 "ccess Switch
> +1,+,+! services
> sed as access aggregation element
> !2 *bps switching capacity 5bi(dir
> #ultiprotocol support
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 8/46
Tellabs 8609 "ccess Switch
> +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
> #ultiprotocol support
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 9/46
Tellabs 8602 "ccess Switch
> +1,+ services
> Targeted to mobile networ&
small hub and cell sites
> "ll common )unctions integrated
> !00 #bit,s throughput 5bi(dir
> #ultiprotocol support
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 10/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 11/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 12/46
Tellabs 8600 Overview
1 Tellabs 8600 System Introduction
Basic Technologies
! Tellabs 8600 "pplications
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 13/46
=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;#
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 14/46
=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&
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 15/46
#%+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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 16/46
/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
$gress
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 17/46
#%+S Signaling
> #%+S signaling is needed to
> reate and distribute labels )or outer and inner +S%s
> Outer +S%
> ;irects the tra))ic to correct destination node inside #%+Snetwor&
> Inner +S%
> Is needed with the -%. services
> Inner +S% carries -%. tra))ic to the other endpoint5s o) the-%.
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 18/46
#%+S Signaling Options
> Outer +S% signaling options> +;%@ +abel ;istribution %rotocol
> Signals outer +S% when no tra))ic engineering is needed
> /S-%(T$@ /esource /eservation %rotocol with Tra))ic $ngineeringe'tensions
> Signals outer +S% when tra))ic engineering needed> Static signaling
> needed )or third party interoperability
> Inner +S% signaling options
> Targeted +;%
> sed )or distributing pseudo wire labels dynamically
> Static
> sed as an alternative )or Targeted +;%
> #%(B*%
> sed in I% -%. application
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 19/46
#%+S +abel Operations
> I) the outer +S% is already signaled@ there are three operations done to I%pac&et when it travels to its destination
> %ush
> "ttach a new label to an I% pac&et> Swap
> Incoming label is replaced with the outgoing one
> %op
> +abel is removed
I% pac&et +abel
%S7
I% pac&et +abel+abel
S="%
I% pac&et +abel
%O%
+$/ +$/+S/
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 20/46
"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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 21/46
=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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 22/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 23/46
$'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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 24/46
"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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 25/46
<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 ! %! +;%
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 26/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 27/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 28/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 29/46
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&
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 30/46
.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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 31/46
> 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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 32/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 33/46
> 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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 34/46
/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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 35/46
> Ingress +S/ initiates connection
> %ath messages sent downstream
> /eservation messages sent upstream
> /esv allocates resources at each +S/
Ingress $gress
+S/1 +S/ +S/!
/esv5+abel 1C
%ath %ath
/esv5+abel 8
+S% Set(up with /S-%(T$
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 36/46
"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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 37/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 38/46
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%
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 39/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 40/46
Tellabs 8600 Overview
1 Tellabs 8600 System Introduction
Basic Technologies
! Tellabs 8600 "pplications
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 41/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 42/46
#obile TransportSingle Transport )or * and !*
> * T;# transport> T;# circuit emulation over
#%+S networ& using pseudo
wires
> <ull $1,T1 or timeslot level
connectivity
> !* "T# or I% transport
> "T# tunneling over #%+S or I%
networ& using pseudo wires
> "T# -% or -%,- endpoints
> I% aggregation
/.
BS
!*
"T#
*
T;#
%seudo =ires over
#%+S 5or I%
# d I% -%.
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 43/46
#anaged I% -%.7ierarchical and <lat /< 249bis
> #ultipoint I% connectivity with
several topology alternatives
> ustomer speci)ic routing tables
5-/<s
> B*% advertises -/< content
over the #%+S networ&
ore .etwor&
"ccess
.etwor&
"ccess
.etwor&
ustomer Site 1
ustomer Site
ustomer Site !
.(%$
.(%$
(%$
(%$
.(%$
#%(eB*% #%(eB*%
<ully meshed#%(iB*%
"ccess
.etwor&
-/< -/<
-/<
-/<-/<
# d $th t S i
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 44/46
#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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 45/46
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
7/23/2019 C01 Tellabs 8600 Overview
http://slidepdf.com/reader/full/c01-tellabs-8600-overview 46/46
#ultiservice "ggregation#igrating with Tellabs 6!00 and 8100
Tellabs
8100,6!00
Tellabs 8600
I%,#%+S
$thernet -+". -%.
mapping to $thernet
pseudo wires or I% -%.s
%$
%$
%$