MEF 35

8/9/2019 MEF 35

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MEF 35: Service OAM PerformanceMonitoringImplementation Agreement

July 202

Intro!ucing t"eSpeci#cation$ of t"e MEF

8/9/2019 MEF 35


Outline

• Approve! MEF Speci#cation$

• %"i$ Pre$entation

• A&out t"i$ Speci#cation

• Overvie' – Maintenance Entities

• PM Solution$

• PM (on$i!eration$

• Summary

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Specifcation

Description

MEF 2 Requirements and Framework or Ethernet Service Protection

MEF 3 ircuit Emu!ation Service Defnitions" Framework and Requirements in MetroEthernet #etworks

MEF $ Metro Ethernet #etwork %rchitecture Framework Part 1& 'eneric Framework

MEF ()1 Metro Ethernet Services Defnitions Phase 2

MEF *)1 EMS+#MS ,normation Mode! Phase 2MEF - ,mp!ementation %.reement or the Emu!ation o PD/ ircuits over Metro

Ethernet #etworks

MEF 0 %stract est Suite or Ethernet Services at the #,

MEF 14)2 Ethernet Services %ttriutes Phase 2

MEF 11 ser #etwork ,nterace 5#,6 Requirements and Framework

MEF 12)1 Metro Ethernet #etwork %rchitecture Framework Part 2& Ethernet Services7a8er

MEF 13 ser #etwork ,nterace 5#,6 8pe 1 ,mp!ementation %.reement

MEF 1$ %stract est Suite or ra9c Mana.ement Phase 1

MEF 1: Requirements or Mana.ement o Metro Ethernet Phase 1 #etwork E!ements

MEF 1( Ethernet 7oca! Mana.ement ,nterace

Speci#cation$*

;urrent at time o pu!ication) See MEF we site or o9cia! current !ist" minor updates and superseded work 5such as MEF 1and MEF :6

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Speci#cation$

Specifcation

Description

MEF 1* Service <%M Framework and Requirements

MEF 1- %stract est Suite or ircuit Emu!ation Services

MEF 10 %stract est Suite or #, 8pe 1

MEF 24 ser #etwork ,nterace 5#,6 8pe 2 ,mp!ementation %.reement

MEF 21 %stract est Suite or #, 8pe 2 Part 1& 7ink <%M

MEF 22)1 Moi!e =ackhau! ,mp!ementation %.reement Phase 2MEF 23)1 !ass o Service ,mp!ementation %.reement Phase 2

MEF 2$ %stract est Suite or #, 8pe 2 Part 2& E+7M,

MEF 2: %stract est Suite or #, 8pe 2 Part 3& Service <%M

MEF 2()1 E>terna! #etwork #etwork ,nterace 5E##,6 ? Phase 2

MEF 2*

%stract est Suite For #, 8pe 2 Part :& Enhanced #, %ttriutes @ Part (&

72P /and!in.

MEF 2-E>terna! #etwork #etwork ,nterace 5E##,6 Support or #, unne! %ccess andAirtua! #,

MEF 20 Ethernet Services onstructs

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Speci#cation$

Specifcation Description

MEF 34 Service <%M Fau!t Mana.ement ,mp!ementation %.reementMEF 31 Service <%M Fau!t Mana.ement Defnition o Mana.ed <Cects

MEF 32 Requirements or Service Protection %cross E>terna! ,nteraces

MEF 33 Ethernet %ccess Services Defnition

MEF 3$ %stract est Suite or Ethernet %ccess Services

MEF 35 Service OAM Performance Monitoring Implementation Agreement

MEF 3( Service <%M S#MP M,= or Perormance Monitorin.

MEF 3* %stract est Suite or E##,

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Overvie'

Stan!ar!i+e!Service$

Purpo$e

%n ,mp!ementation %.reement 5,%6 which provides orService <perations" %dministration" and Maintenance5S<%M6 that satisfes and e>tends the PerormanceMonitorin. 5PM6 ramework and requirements descriedin MEF 1*)

Au!ience

%!!" since it provides the undamenta!s required to de!iverarrier Ethernet services)

Service OAM Performance MonitoringImplementation Agreement

MEF 35

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Overvie' of MEF 35

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A&out MEF 35

• Purpo$e: – his presentation is an introduction to MEF 3: ? Service

<%M Perormance Monitorin. ,mp!ementation%.reement

• Au!ience – Aendors ui!din. devices supportin. <%M unctions or

arrier Ethernet Services

– Service Providers de!iverin. arrier Ethernet Services

• Ot"er ,ocument$ – MEF 1* ? Service <%M Framework and Requirements

–

MEF 34 ? Service <%M Fau!t Mana.ement,mp!ementation %.reement

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Service OAM

• MEF - provi!e$ t"e frame'or. – Re!evant or Suscriers 5customers6" <perators and

Service Providers

• Fault Management IA /MEF 30 – FM o MEF Services – Specifes prof!e o protoco!s defned in ,EEE -42)1a. and

,+ )1*31 – Provides asic S<%M architecture and requirements or

each o the recommended ME's

• Performance Management IA /MEF 35 – PM o MEF Services

– Specifes prof!e o protoco!s defned in ,+ )1*31• 1elate! or.

– M,=s 5S#MP6 or FM and PM covered in MEF 31 and MEF3(

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Performance management i$ a critical part of acircuit$ lifecycle

SOAM

et'or. Management

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MEF 35 Speci#cation Section 1evie'

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Intro!ucing MEF 35

•

%"e pre$entation i$ organi+e!into t"e follo'ing $ection$: – <verview

• Maintenance Entities

– PM So!utions – PM onsiderations

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Performance Monitoring

•

6a$e! on I%78% 9-3• Protocol$ or Performance

Monitoring mec"ani$m$ – Frame De!a8

– Frame De!a8 Ran.e

– ,nter+Frame De!a8 Aariation

– Frame 7oss Ratio

– %vai!ai!it8

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Operator

,omain

(u$tomer ,omain

Provi!er,omain

Operator 2,omain

(u$tomer

(u$tomer

ServiceProvi!er

;ierarc"ical OAM ,omain$

/ierarchica! maintenance domainsind <%M ows @ <%M responsii!ities

#,#, E##,

PE PE<perator 1#etwork

<perator 2#etwork

#,D #,D

Ethernet Airtua!onnection

(u$tomer

,omain

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%erminology an! (oncept$

• MEF 35 &uil!$ upon MEF - an! MEF 30

!e#ne! SOAM component$ inclu!ing: – Maintenance Entit8 5ME6

– Maintenance Entit8 'roup 5ME'6

– ME' End Point 5MEP6

–

ME' ,ntermediate Point 5M,P6 – ME' 7eve!

– ME' !ass o Service 5oS6

• MEF 30 an! MEF 35 are &a$e! onterminology foun! in I%7 9-3

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,efault ME< 4evel 7$age

• %"i$ i$ t"e complete $et of !efault ME<level$

• ot all ME< level$ are re=uire! in every

application

,efaultME<4evel

(:$

321

)))))))))) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) )

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>ey Maintenance Entity <roup$ /ME<$

ME< Sugge$te! 7$e ,efault,irectio

n forMEP$

,efaultME<

4evel

SuscrierME'

Suscrier monitorin. o anEthernet service

p orDown

(

est ME' Service Provider iso!ation o

suscrier reported pro!ems

Down :

EA ME' Service Provider monitorin. oprovided service

p $

ServiceProvider ME'

Service Provider Monitorin. oService Provider network

p 3

<perator ME' #etwork <perator monitorin. otheir portion o a network

p 2

#, ME' Service Provider monitorin. o a#,

Down 1

E##, ME' #etwork <peratorsG monitorin. oan E##,

Down 1

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1

MEP %erminology

• 7p MEP$ are po$itione! to'ar! t"e MA( 1elay – Processes the <%M tra9c that comes throu.h the M% Re!a8

• ,o'n MEP$ are po$itione! to'ar! t"e 4A – Processes tra9c that enters the Switch rom the 7%#

PortFiltering

PortFiltering

FrameFiltering

Port Port 2

p MEP

Down MEP

M% Re!a8

S e e , E E E

- 4 2 ) 1 H

+ 2 4 1

1

F i . u

r e 2 2 + $

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1

ME< En! Point /MEP

ME< En! Point ? MEP

• SOAM point$ a$$ociate! 'it" a $ingle ME<level /an! a $ingle Maintenance ,omain

• (an generate an! re$pon! to SOAMprotocol$

• 7p MEP$ are oriente! to'ar! t"e MA(

1elay /non8#lle! triangle• ,o'n MEP$ are oriente! to'ar! t"e

net'or. /#lle! triangle

ME'

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2

Orientation

• ,o'n MEP 8 i$ a MEP re$i!ing in a 6ri!ge t"at receive$ SOAM P,7$ from@an! tran$mit$ t"em to'ar!$@ t"e !irection of t"e 4A ote t"at in t"e MEF$ervice mo!el@ t"e 4A i$ a tran$mi$$ion facility in t"e egre$$ !irection@rat"er t"an to'ar!$ t"e 6ri!ge 1elay Entity

• 7p MEP 8 i$ a MEP re$i!ing in a 6ri!ge t"at tran$mit$ SOAM P,7$ to'ar!$@an! receive$ t"em from@ t"e !irection of t"e 6ri!ge 1elay Entity ote t"atin t"e MEF $ervice mo!el@ t"e 6ri!ge 1elay Entity it$elf i$ out of $cope

• A given ME< can &e terminate! &y eit"er 7p or ,o'n MEP$

• 7p MEP$ are t"e mo$t commonly u$e! MEP an! are recommen!e! for t"efollo'ing ME< level$: E(@ Service Provi!er@ Operator an! optionally t"eSu&$cri&er

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2

/MIP

ME< Interme!iate Point ? MIP

• SOAM point$ a$$ociate! 'it" a $ingle ME<level /an! a $ingle Maintenance ,omain

• (an re$pon! to SOAM protocol$@ &ut cannotgenerate re=ue$t$

• ,e#ne! to &e locate! at EBternal Interface$

$uc" a$ EI$ /or 7I$ In practice canal$o &e u$e! in a!!itional internal operatorlocation$ '"ere monitoring i$ !e$ire!

M,P

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2

PM Se$$ion$

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2

PM Solution (omponent$

• SOAM PM

IAFocu$e!on t"eet'or.Element

4ayer• A PM

Solutioni$ ma!eup of one

or morePMFunction$

l i

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2

PM Solution$

• %"ere are t"ree PM Solution$ !e#ne!@eac" 'it" !iCerent c"aracteri$tic$

• A PM Solution u$e$ PM Function$ '"ic"u$e t"e PM tool$ !e#ne! in I%78% 9-3

PMSolution

ME<%ype/$

Mea$urement%ec"ni=uefor 4o$$

PM Function/$ Man!atoryor

OptionalPM+1 point+to+point

mu!tipointS8nthetic estin.

Sin.!e+Ended De!a8Sin.!e+Ended S8nthetic

7oss

Mandator8

PM+2 point+to+pointmu!tipoint

nIa Dua!+Ended De!a8

<ptiona!

PM+3 point+to+point ountin. Service Frames Sin.!e+Ended Service

7oss

<ptiona!

PM Function ITU-T PM Tool ITU-T PDU(s)

Single-Ended Delay ITU-T Two-way ETH-DM DMM/DMR

Dual-Ended Delay ITU-T One-way ETH-DM 1DM

Single-Ended Service Loss ITU-T Single-Ended ETH-LM LMM/LMR

Single-Ended Syntetic Loss ITU-T Single-Ended ETH-SLM SLM/SLR

Si l E ! ! F i

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2

Single8En!e! Function$

, l E ! ! F i

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22

,ual8En!e! Function$

PM S l i

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2

PM Solution$

• PM8 – Sin.!e+Ended Point+to+Point or Mu!tipoint De!a8 and

S8nthetic 7oss

– Sin.!e+Ended unctions send messa.es rom aontro!!er MEP to a Responder MEP which responds

ack to the ontro!!er MEP – Metrics o!!ected

• <ne+wa8 Frame De!a8

• <ne+wa8 Mean Frame De!a8

• <ne+wa8 Frame De!a8 Ran.e

• ,nter+Frame De!a8 Aariation• <ne+wa8 Frame 7oss Ratio

• %vai!ai!it8 or an EA or <A

• Resi!ienc8+re!ated metrics or EA or <A

PM S l ti / ti !

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2

PM Solution$ /continue!

• PM82 – Dua!+Ended Point+to+Point or Mu!tipoint De!a8

– Dua!+Ended unctions send measurements rom a ontro!!erMEP to a Sink MEP where the ca!cu!ations are made

– Metrics o!!ected• <ne+wa8 Frame De!a8

• <ne+wa8 Mean Frame De!a8• <ne+wa8 Frame De!a8 Ran.e

• ,nter+Frame De!a8 Aariation

• PM83 – Sin.!e+Ended Service 7oss Measurement

– his so!ution uses the service tra9c instead o s8nthetictra9c

– Metrics o!!ected• <ne+wa8 Frame 7oss Ratio

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2

PM8 EBample

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3

Single8En!e! Synt"etic 4o$$ Mea$urement

• S4M Me$$age create! at t"e (ontroller MEP /at MEP8A – est,D is in the PD to diJerentiate

– Source MEP ,D

– Aa!ue o !oca! counter 5at MEP+%6 containin. the numer o S7M messa.essent

• S41 Me$$age i$ create! at t"e 1e$pon!er MEP /at MEP86 – Received counts are copied

– 7oca! counter o received S7M messa.es are sent ack to the ontro!!erMEP

• Frame 4o$$ i$ calculate! at t"e (ontroller MEP

E##,

#,#,

#,D+% #,D+=

<perator 25<<F operator6<perator 15Service Provider6

S7M

S7RMEP+% MEP+=

S7M

S7R

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3

Summary

1 l t ! S i# ti

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3

1elate! Speci#cation$

• MEF 35 $ection D li$t$ a full li$t of

relate! MEF $peci#cation$• MEF 30 SOAM FM

• MEF 3 SOAM FM MI6

•

MEF 3D SOAM PM MI6• I%78% 9-3

• MEF - SOAM re=uirement$ an!frame'or.$ p"a$e

• MEF 2 (arrier Et"ernet et'or.Arc"itecture Part 2 ? E%; Service4ayer

Fi l !

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3

Final or!

• Service OAM –

,n the conte>t o MEF 3:" mechanisms are defned thatsupport service+!eve! <%M in ME#s)

• eBt Action$

– Read the MEF 3: specifcation

– Read the MEF 34 specifcation

– Read ,EEE -42)1H+2411 c!auses 1-" 10" 20" 21" and 22

– Read ,+ )1*31

– Review o MEF 1*" MEF 14 and MEF 1: ma8 a!so e he!pu!

–

nderstand the principa! service <%M components andcapai!ities

– Review a!so MEF 3(" MEF 31 and MEF 12)1 specifcation

F F ll , t il

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33

For Full ,etail$

Plea$e vi$it'''metroet"ernetforumorg Select Information (enter on4eft avigation to acce$$ t"e

full $peci#cation an! eBtracte!MI6 #le$

arrier Ethernet

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,SP P<P

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7I: ser #etwork ,nterace) theph8sica! demarcation pointetween the responsii!it8 o theService Provider andthe responsii!it8 o the End+serISuscrier

(E ustomer Equipment

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type

E84ine Servicetype

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MEF 35