iir-mef-barcelona-11-04-optimizing-me-deployments.ppt

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… what buyers need to understand… what providers need to communicate

Optimizing Ethernet deployments

David Noguer

Optical Ethernet - Product [email protected]



2

Topics for discussion

• Architecture options

• VPN/EVC Ethernet Virtual Connection! separation

• The role of the "N#

• Co$/%o$



3

&etro Accessand Aggregation

Ubiuit!

"#ailabilit!

$ensit!

&etro Accessand Aggregation

Ethernet switch$%&' "(M' )P' ($M

$e#ices with Ethernet Uplinks

&etroEdge

Metro

*outers+%witches

&etro Ethernet Architecture

&etroCore

,ati#e EthernetO#er %onet+%$

O#er $$M/01bsNet &gmt

$vc &gmt

Traffic Engineering

&etroCore

%caleable

*eliable

(raic Engineering

&etro

Edge

$istributed %witching

4entrali5ed *outing

Manageable



6

% i n %

% i n %

&P'$&P'$

"(PE"(PE N(PEN(PE

CustomerCustomerPrem AccessPrem Access

&etro Ethernet&etro EthernetAccess/AggregationAccess/Aggregation &etro Core&etro Core )AN)AN

*uilding *loc+s for the #nfrastructure

%in%%in%

Or Or

&in&&in& &P'$Net,or+s

PEPE



7

-.ms Ethernet-.ms EthernetAccess ingAccess ing

% i n %

% i n %

%in%%in%

Or Or

&in&&in& &P'$&P'$

"(PE"(PE N(PEN(PE

CustomerCustomerPrem AccessPrem Access

&etro Ethernet&etro EthernetAccess/AggregationAccess/Aggregation &etro Core&etro Core )AN)AN

Solution depends upon network architecture, location andSolution depends upon network architecture, location anddensity of enterprise customersdensity of enterprise customers

*uilding *loc+s for the #nfrastructure

& i n &

& i n &

%in%%in%

Or Or

&in&&in& &P'$Net,or+s



8

*uilding *loc+s0 1ocus on Access

Customer

Premises

CPE

EthernetCO/POP

Access

Aggregator

*ac+2one

Edge

Device

NT"

Ethernet #ntelligence

• $ome Ethernet capa2ilities ( 3Ethernet #ntelligence4 ( can 2e

distri2uted 2et,een NT" and access aggregator/edge device

• (raic tagging and+or re-tagging including 9&", stacking• :ueuing and bandwidth management

• O"M' alarms and ault notiication' diagnostics

• Optional interworking



;

1i2er

52E!

1Gbps

Copper

1!bps

Point-to-Point

Copper Drop

Point-to-Point

Fiber Drop

1i2er

1 !bit/s

1i2er

52E!

1Gbps

Point-to-Multipoint

Ethernet PON

1i2er

52E!

1Gbps

1i2er

Shared bw

Point-to-Point

Fiber

1i2er

1Gbps

Ethernet in the 1irst &ile

Architectures



<



• VPN/EVC Ethernet Virtual Connection! separation


• Co$/%o$



/0

• (wo primar! models=

• - )EEE;02./ad %in% >%tacked 9&",?• - )EEE;02./ah &in& >ackbone Pro#ider ridge?

EVC separation introduction

EnterpriseEthernet

header

"ser

data

%in%

V'AN #Ds

• V'AN #Ds sac+ed one 2efore the other • Ena2les duplicate V'AN #Ds in su2

fields

EnterpriseEthernet

header

"ser

data

$P Ethernetheader

&in&

• $P Ethernet header contains $rc and

Dest &AC address used to transport

pac+et across service provider6s

net,or+• Ena2les duplicate V'AN #Ds in

Enterprise header



//

&in& principles

$ite 7

$ite 8

$ervice Provider

&etro Ethernet

net,or+

Ethernet

$,itches

Enterprise

Ethernet

header

"ser

data$P Ethernet

header

Ethernet

pac+et arrives

from enterprise

CPE node at $P

ingress s,itch

Ethernet"N#

source!

$P #ngress s,itch

adds $P Ethernetheader

$rc and Dest &AC

addresses are

Ethernet "N# ports

Ethernet

"N#

destination!

Ethernet pac+et

s,itched across

the $ervice

Provider net,or+using details in $P

Ethernet header

$P Egress s,itch

removes $P

Ethernet header

And for,ardsoriginal Ethernet

pac+et to end

customer CPE



/2

Customer

Ethernet

1rame

&ac in &ac data plane frame format

$P &ACDA

$P &AC$A

ET9.:;<..

$P %(tag<

ET9&i&

$erviceTag

CustomerEthernet1rame

$P 1C$

$estination M"4 address• ) destination unknown' then

0ABBBBBB

%ource M"4 address

P-

bits

4

B)

(unnel )$

>CCC?

*eser#ed

P(

%er#ice )$>DDD?

$P =eader

$P Payload

< <>?

< >@

Buture

1rowth.

9endor

speciic

ields.

Pa!load (!pe

>data or control?

ET0 EthertypeCT#0 Canonical 1ield #dentifier

(raic Management

E94 )$

/8M



/3

EnterpriseCPE

EnterpriseCPE

Carrier

Access CarrierAccess

CarrierCoreCarrierCore

a<2<

%in% principles

2<a< %

2<a< % %

2<a< % % % 2<a< % % %

2<a< % %

2<a< %



/6

% in % data frame format

C(&AC DA

C(&AC $A

C Tag

C(Payload

C(1C$

P V'AN #D

P(Ethertype

P(V'AN

Co$

P C1#

$ Tag

Customer original Tag

SP CoS

SP EVC ID4096

Customer internal MAC



/8



VPN/EVC Ethernet Virtual Connection! separation


• Co$/%o$



/

Ethernet "N#

• $ecure separation and privacy

• 4ustomer traic is identiied and marked

immediatel! upon entr!

• $ervice delineation

• $emarcation point pro#ides ser#ice multipleAing

onto a single ph!sical link

• E94 End Point

• $cala2ility B $u2scri2er &ultiple:ing

• )EEE ;02./ad stacked ./ tags

• )EEE ;02./ah Mac in Mac encapsulation

• Ethernet 'in+ 'evel $ecurity• ;02./A %ubscriber "uthentication

• Traffic prioritization / *and,idth control

• Enables dierentiated ser#ices

Customer

Data

Customer

Data

Provider Tag

Provider Tag

Customer

Data

Customer

Data

Provider

Edge

Device

&AN

Net,or+

"N# "N#

$u2 >$u2 <



/;

"N# $ervice Attri2utes$ervice Attri2ute$ervice Attri2ute $ervice Attri2ute Parameters$ervice Attri2ute Parameters

U,) )dentiier " string used to identit! o a U,)' e.g.' ,D4ldg/2*m/02%lot22Port3

Ph!sical Medium %tandard Ethernet PD

%peed /0 Mbps' /00 Mbps' / 1bps or /0 1bps

Mode Bull $upleA or "uto negotiation

M"4 &a!er )EEE ;02.3-2002

%er#ice MultipleAing Des or ,o. $eines whether multiple ser#ices can be on the U,)

U,) E94 )$ " string used identi! an E94' e.g.' ,D4ldg/*m/02%lot22Port3E943

4E-9&", )$ + E94 Map Mapping table o customer 9&", )$s to E94

MaA. ,umber o E94s (he maAimum number o E94s allowed per U,)

undling,o or Des. %peciies that one or more customer 9&", )$s are mapped to anE94 at the U,)

"ll to One undling ,o or Des >all customer 9&", )$s are mapped to an E94 at the U,)?.

)ngress andwidth Proile Per)ngress U,)

,one or F4)*' 4%' E)*' E%G. (his andwidth proile applies to all ramesacross the U,).

)ngress andwidth Proile PerE94

,one or F4)*' 4%' E)*' E%G. (his andwidth proile applies to all rameso#er particular E94.

)ngress andwidth Proile Per4o% )$

,one or F4)*' 4%' E)*' E%G. (his andwidth proile applies to all ramesmarked with a particular 4o% )$ o#er an E94.

&a!er 2 4ontrol Protocol$iscard' Peer or Pass to E94 er rotocol



/<

EVC $ervice Attri2utes

$ervice Attri2ute$ervice Attri2ute $ervice Attri2ute Parameters$ervice Attri2ute ParametersE94 (!pe Point-to-Point or Multipoint-to-Multipoint

U,) &ist " list o U,)s >identiied #ia the U,) )dentiier ser#ice attribute? used withthe E94

4E-9&", )$Preser#ation

Des or ,o. %peciies whether customer 9&", )$ is preser#ed or not.

4E-9&", 4o%Preser#ation

Des or ,o. %peciies whether customer 9&", 4o% >;02./p? is preser#edor not.

Unicast %er#iceBrame $eli#er!

%peciies whether unicast rames are $iscarded' $eli#eredUnconditionall! or $eli#ered 4onditionall!

Multicast %er#ice

Brame $eli#er!

%peciies whether multicast rames are $iscarded' $eli#ered

Unconditionall! or $eli#ered 4onditionall!

roadcast %er#iceBrame $eli#er!

%peciies whether broadcast rames are $iscarded' $eli#eredUnconditionall! or $eli#ered 4onditionall!

&a!er 2 4ontrolProtocol Processing

$iscard or (unnel per protocol

%er#ice Perormance %peciies the Brame $ela!' Brame Hitter and Brame &oss per E94 orrames within an E94 identiied #ia their 4E-9&", 4o% >;02./p? #alue



20

CO/POP

Terminating Ethernet $ervices at

the Customer Premises

End-to-end 4ontrol

Customer Premises

CPEEthernet

NT"

*ac+2one

Edge

Device

• Ena2les control and uality assurance up to the carrier demarcation

point at customer premises

• Control of 2oth access path and customer euipment connectivity

• Traffic management priority support policing shaping!

• End(to(end %o$/$'A assurance

• Optional legacy user interfaces TD& voice!



2/



•VPN/EVC Ethernet Virtual Connection! separation


• Co$/%o$



22

%o$ 'ayers

• %o$ can 2e vie,ed through a 3layered4 approach• rom the ph!sical la!er to applications

• Different forms of %o$ apply at each layer • to create the end-to-end ser#ice

Application(signaled%o$ $#P/$DP =?>?

#P %o$ #P Differentiated $ervices Diff$erv!

Net,or+(signaled %o$ AT& PNN# &P'$ $VP(TE or C('DP

Traffic Engineered Paths AT& PVCs &P'$ E('$Ps and '('$Ps

'in+ 'ayer %o$Ethernet ;.><p V'ANs AT& PPP &P'$ E7P

DOC$#$ 1rame elay ;.><<e )'AN %o$Physical 'ayer %o$

s Virtual Circuits VCs! Ports 1reuencies % o

$ & o n i t o r i n g a n d

& e a s u r e m e n t

No single technology provides end(to(end %o$



23

End(to(End E>E! %o$ E:ample

• E>E %o$ achieved through many different

technologies• $i%er#' MP&%' Ethernet ;02./p' *%9P-(E' $O4%)%

Physical 'ayer %o$

B Port Prioritization

OE &AN

'>Ethernet$,itch

'?Ethernet$,itch

'in+ 'ayer %o$ B

Ethernet ;.><p

Net,or+(signaled%o$ B $VP(TE

OE$,itch

Traffic EngineeredPaths ( &P'$

C&T$

Ca2le&odem

'in+ 'ayer %o$ B DOC$#$

%o$ &onitoring / &easurement

#P %o$ ( Diff$erv

Ca2leAccess

Provider

)hich %o$ technologies should you useF

=o, to you offer an end(to(end serviceF



26

Ethernet $'As

• &any Enterprise customers ,ill not move to

metro Ethernet services unless0

• (here are %&"s with perormance assurances

• (here is a#ailabilit! o ser#ice to all critical locations

• $uch enterprises ,ill 2uild private net,or+s

• Critical $'A $ervice Attri2utes

• andwidth Proile

• %er#ice Perormance

Enterprise customers reuire Co$(2ased $'As ,ithservice performance assurances



27

$ervice Performance %o$!

defined in &E1 -

• $ervice Performance Parameters• Brame $ela!• Brame Hitter

• Brame &oss

• $ervice performance level to deliverydetermined via0

• Per 4o% )$' e.g.' ;02./p user priorit! per E94• Per U,) >port?' i.e.' / 4o% or all E94s at U,)



28

E:ample Co$(2ased &etro Ethernet $'A

• E('ine $ervice

• @ Classes of $ervice

• Co$ determined via ;.><p Co$ #D

• Common type of $'A used ,ith

Co$(2ased #P VPNs

$ervice$erviceClassClass $ervice Characteristics$ervice Characteristics Co$ #DCo$ #D *and,idth Profile per*and,idth Profile per

EVC per Co$ #DEVC per Co$ #D$ervice$ervice

PerformancePerformance

Premium eal(time #P telephony or #Pvideo applications G

C# H .E# 9 .

Delay I -msJitter I <ms

'oss I ...<K

$ilver

*ursty mission critical data

applications reuiring lo,loss and delay eg $torage! @ -

C# H .

E# L "N# $peed

Delay I -ms

Jitter 9 N/$'oss I ..<K

*ronze*ursty data applicationsreuiring 2and,idthassurances

? @C# H .E# L "N# $peed

Delay I <-msJitter 9 N/$'oss I .<K

$tandard *est effort service . < >C#9.E#9"N# speed

Delay I ?.msJitter 9 N/$'oss I .-K



2

#n conclusion

• &any different architectures for Ethernet in the

&etro

• VPN separation has to 2e carefully considered

and 2e 2ased on reuirements

• "N# provides clear separation 2et,een

enterprise and service provider

• Co$/%o$ is a must for enterprise to ta+e up a&etro Ethernet service



Than+ youdnoguer@nortelnetworks!om

Date post:	10-Jan-2016
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