Module 2 Protocol Stackv1.ppt

7/21/2019 Module 2 Protocol Stackv1.ppt

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1 Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

Module4

Protocol Stack


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! Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

BTS

BSC

TCSM /TRAU

NetActT

M

Abis

Ater A

O&M

SMLC

Lb+

BSC

BSC-BSC

All IP/ Ethernet in NSN 2G Radio Access elementsEntire NSN GSM interfaces supporting IP/ E!

"ore Site"ore Site

SGSN

MS"

MG#

Gb

Sigtran

Before BSS13

C!So"SN#

RG$%

"acet Abis

A o'er ("

RG1%

C!So"SN#

Abis

$SS$SS

A


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Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

#hat %asicall& is Packet A%is'

$o&e' is pa'ke& into pa'ket &ire'tl instea& o% #*+ %rame

Ban&wi&t, is poole& %or all tpes o% tra%%i'(no &e&i'ate& allo'ation anmore)e.. S &ata tra%%i' 'an utilie all an&wi&t, aailale

Not,in is sent2 w,en t,ere is not,in to sent

,si'al me&ia is3 4H/S4H (51/12 SM1/O$)

3 5t,ernet

5t,ernet orM/H4$

7 +4 # "()E"*"()E"*

RG2+


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$on%i&ential

Ethernet P!,)M

IP

Packet A%is - Protocol Stack

U)"

NSN RT"

SCT"

(UA

M" M. PPP

M-*aneC-*ane"S U-*ane CS U-*ane

I"MP

ARP

Ethernet MA"


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$on%i&ential

Ne0 ransport Protocols 1or Packet A%is

a'ket *is re:uires t,e a&option o% new transport proto'olswit, respe't to t,e ea' *is.

,e transport proto'ols to e use&2 on t,e one ,an& &epen& on;

,e tpe o% tra%%i' %low t,at ,as to e 'onee& oer t,e *isinter%a'e2 on t,e ot,er ,an& are 'on&itione& to t,e two possile

ariants$ 1""0 ?=@ an&

use& to areate (un&le) multiple p,si'al links into a sinle loi'al/irtuallink.

,is ailit to 'omine multiple lower-spee& links into a sinle2 ,i,er-spee&&ata pat, is o%ten re%erre& to as pa'ket-ase& inerse multipleAin.

7n a'ket *is oer 4M2 M is to e use& %or areation o% H4$

',annels an& treat t,em as a sinle p,si'al pipe %or transportin t,e ,i,erlaer 7 pa'kets.

7n t,e transmit &ire'tion2 M takes a pa'ket2 optionall %raments it2 an&a&&s a M ,ea&er w,i', in'lu&es se:uen'e numer (an& ! its

in&i'atin einnin an& en& o% %rament). 5a', resultin %rament (or w,olepa'ket) is transmitte& a'ross a separate p,si'al link o% t,e un&le. *t t,ere'eier si&e2 t,e ,ea&ers are use& to re'onstru't t,e 'omplete pa'ket.


8/60 Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

ser Plan

$on'ernin $S /S +ser-plane2 t,e tra%%i' is to e sent a'rosst,e *is inter%a'e oer t,e +4/7 proto'ol sta'k< t,isrear&less o% t,e nature o% t,e tra%%i' itsel% (i.e. spee',2 &ataC).

*is $S /S +ser-plane %rame %ormat in'lu&in NSN

MultipleAe& #


9/60" Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

"ontrol Plan

*s %ar as $-plane is 'on'erne&2 t,e sinalin %low (#DS7E) isto e trans%erre& ia 7+* (7S4N +ser *&aptation) proto'ol laer.7+* (#>$ 8! ?6@) &e%ines a proto'ol %or a'k,aulin o%7nterate& Seri'es 4iital Network (7S4N) F."!1 +sermessaes (i.e. *4 user messaes) oer 7 usin t,e Stream$ontrol ransmission roto'ol (S$) in etween.7+* essentiall uses S$ to a&apt G*4 ',annels to etrans%erre& oer 7



$on%i&ential

!eader compression

7n s,ort2 7 ,ea&er 'ompression is t,e pro'ess o% 'ompressineA'ess proto'ol ,ea&ers e%ore transmittin t,em on a link an&un'ompressin t,em to t,eir oriinal state on re'eption at t,eot,er en& o% t,e link. 7t is possile to 'ompress t,e proto'ol,ea&ers &ue to t,e re&un&an' in ,ea&er %iel&s o% t,e samepa'ket as well as 'onse'utie pa'kets o% t,e same pa'ketstream.



$on%i&ential

!eader compression

$onsi&erin t,e 'onstraint aoe an& t,e %a't t,at ,ea&er'ompression mi,t not e aailale in all network elements2 t,e%un'tionalit is rear&e& as optional an& to e enale&/&isale& 'on%iuration.

Hea&er 'ompression is 'onsi&ere& as essential %or a'ket *is

oer 4M w,ere re&u'in t,e oer,ea& allows a more e%%i'ientuse o% t,e an&wi&t, 'ompare& to lea' *is. >or a'ket *isoer SN (5t,ernet) t,e %un'tionalit is instea& 'onsi&ere& asene%i'ial (i.e. important ut not essential an& so &e%errale to%uture releases) sin'e in t,is 'ase an&wi&t, sain is less

'ru'ial t,an in t,e 4M one.


12/601! Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

M" PPP Multi "lass Point to Point Protocol35

M$ (Multi $lass oint to oint roto'ol)2 as &e%ine& in#>$ !66 ?@2 is an eAtension o% M t,at allows &e%ininmore t,an one instan'e o% M ea', one &istinuis,e& wit,a 'lass numer ( pro%itin o% preiousl unuse& its). ,iswa2 %or ea', 'lass it is possile to use a separate se:uen'enumer spa'e an& reasseml u%%er to e ale to ensure t,att,at most important tra%%i' tpes are treate& wit, ,i,er priorit.,e multiple M instan'es are still usin t,e er same&ata links (tra%%i' is not separate& on t,e links2 ut multipleAe&toet,er).

7n 'ase o% a'ket *is oer 4M2 M$ is to e use& %orseparation o% tra%%i' 'lasses ($-plane2 $S2 S2 M-plane).


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$on%i&ential

Packet A%is o6er )M


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$on%i&ential

"S )omain ser Plane

*

E.=11

)4M 61

MS$*ter*0is

)4M 61

7

+4

$o&e'

H46$

NSN muA& #)

)4M 61

E.=11

)rans'o&in

)4M 61

H46$

)4M 61

$o&e'

)#*+ %rame

)4M 61

BS$B)S

M6/M$- M6/M$-

)$

7

+4

NSN muA& #) )#*+ %rame

Packet A%is o6er )M7 "S domain protocol stack 8plane3


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$on%i&ential

"S )omain "ontrol Plane

**0is

H46$

)4M 61

H46$

)4M 61

BS$ MS$B)S

M6/M$- M6/M$-

)4M 61

7

S$)

7+*

7

S$)

7+*

S$$

M)

BSSM*

)4M 61

S$$

M)

BSSM**0is 6 *0is 6

Packet A%is o6er )M7 "S domain protocol stack "8plane3

0ith .egac& A interface


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$on%i&ential

"S )omain "ontrol Plane #ith SIGRAN

**0is

H46$

)4M 61

H46$

)4M 61

BS$ MS$B)S

M6/M$- M6/M$-

5t, 6!

5t, 61

7

S$)

7+*

7

S$)

7+*

7

S$)

S$$

M+*

BSSM*

5t, 6!

5t, 61

7

S$)

S$$

M+*

BSSM**0is 6 *0is 6

Packet A%is o6er )M7 "S domain protocol stack "8plane3

0ith SIGRAN at A interface


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1= Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

PS )omain ser Plane

+m E0*0is

7

+4

H46$

)4M 61

BSSE BSSE

7

+4

#6$

H46$

M*$

)4M 61

BS$B)S

ESM 61

#6$

66$

4ata appli'ation

M*$

SN4$

ESM 61

SESN

7

)$/+4

66$

SN4$

NS NS

M6/M$- M6/M$-

MS

61 61

NSN muA& #) NSN muA& #)

*-> *->

Packet A%is o6er )M7 PS domain protocol stack 8plane3

0ith .egac& G% interface


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$on%i&ential

PS )omain ser Plane #ith G% (6er IP

+m E0*0is

7

+4

H46$

)4M 61

BSSE BSSE

7

+4

#6$

H46$

M*$

)4M 61

BS$B)S

ESM 61

#6$

66$

4ata appli'ation

M*$

SN4$

ESM 61

SESN

7

)$/+4

66$

SN4$

NS NS

M6/M$- M6/M$-

MS


*-> *->

5t, 61 5t, 61

7

5t, 6!

7

+4

5t, 6!

+4

Packet A%is o6er )M7 PS domain protocol stack 8plane3

0ith G% o6er IP interface


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1" Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

PS )omain "ontrol Plane

+m E0*0is

7

+4

H46$

)4M 61

BSSE BSSE

7

+4

#6$

H46$

M*$

)4M 61

BS$B)S

ESM 61

#6$

66$

EMM/SM

M*$

ESM 61

SESN

66$

NS NS

M6/M$- M6/M$-

MS

61 61


*-> *->

Packet A%is o6er )M7 PS domain protocol stack "8plane3


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!0 Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

Management Plane

*0is

H46$

)4M 61

H46$

)4M 61

BS$B)S

M6/M$-... M6/M$-...

7.

S$).

7+*

7.

S$).

7+*

*0is OIM *0is OIM

Packet A%is o6er )M7 (9M signaling protocol stack M8plane3


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$on%i&ential

Packet A%is o6er PSN


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!! Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

"S )omain ser Plane

*ter **0is

)4M 61

7

+4

$o&e'

5t, 6!

NSN muA& #)

5t, 61

E.=11 E.=11

)rans'o&in

)4M 61 )4M 61

5t, 6!

5t, 61

$o&e')#*+ %rame

)4M 61

BS$ MS$B)S )$

7

+4

NSN muA& #) )#*+ %rame

Packet A%is o6er PSN7 "S domain protocol stack 8plane3


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$on%i&ential

"S )omain "ontrol Plane

**0is

)4M 61

7.

S$).

*0is 6

5t, 6!

7+*

5t, 61

5t, 6!

5t, 61

BS$ MS$B)S

7.

S$).

*0is 6

7+*

S$$.

M).

BSSM*.

)4M 61

S$$.

M).

BSSM*.

Packet A%is o6er PSN7 "S domain protocol stack "8plane3

0ith .egac& A interface


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$on%i&ential

"S )omain "ontrol Plane #ith SIGRAN

**0is

5t, 6!

5t, 61

7.

S$).

*0is 6

5t, 6!

7+*

5t, 61

5t, 6!

5t, 61

BS$ MS$B)S

7.

S$).

*0is 6

7+*

7.

S$).

S$$.

M+*

BSSM*.

5t, 6!

5t, 61

7.

S$).

S$$.

M+*

BSSM*.

Packet A%is o6er PSN7 "S domain protocol stack "8plane3

0ith SIGRAN at A interface


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$on%i&ential

PS )omain ser Plane

+m E0*0is

7.

+4.

5t, 6!

5t, 61

BSSE. BSSE.

7.

+4.

#6$

5t, 6!

M*$

5t, 61

BS$B)S

ESM 61

#6$

66$

4ata appli'ation

M*$

SN4$.

ESM 61

SESN

7.

)$./+4.

66$

SN4$.

NS NS

MS

61 61

NSN muA& #). NSN muA& #).

.*->. .*->.

Packet A%is o6er PSN7 PS domain protocol stack 8plane3



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$on%i&ential

PS )omain ser Plane #ith G% (6er IP

+m E0*0is

7

+4

5t, 6!5t, 61

BSSE BSSE

7

+4

#6$

5t, 6!

M*$

5t, 61

BS$B)S

ESM 61

#6$

66$

4ata appli'ation

M*$

SN4$

ESM 61

SESN

7

)$/+4

66$

SN4$

NS NS

MS

5t, 61 5t, 61


*-> *->

7

5t, 6!

7

+4

5t, 6!

+4

Packet A%is o6er PSN7 PS domain protocol stack 8plane3

0ith G% o6er IP interface


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!= Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

PS )omain "ontrol Plane

+m E*is

7

+4

5t, 6!

5t, 61

BSSE BSSE

7

+4

#6$

5t, 6!

M*$

5t, 61

BS$B)S

ESM 61

#6$

66$

EM/SM

M*$

ESM 61

SESN

66$

NS NS

MS

61 61


*-> *->

Packet A%is o6er PSN7 PS domain protocol stack "8plane3



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$on%i&ential

PS )omain "ontrol Plane #ith G% (6er IP

+m E0*0is

7

+4

5t, 6!

5t, 61

BSSE BSSE

7

+4

#6$

5t, 6!

M*$

5t, 61

BS$B)S

ESM 61

#6$

66$

EM/SM

M*$

ESM 61

SESN

66$

NS NS

MS


*-> *->

7

+4

5t, 6!

5t, 61

7

+4

5t, 6!

5t, 61

Packet A%is o6er PSN7 PS domain protocol stack "8plane3

0ith G% o6er IP


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!" Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

Management Plane

*0is

7.

S$).

5t, 6!

7+*

5t, 61

5t, 6!

5t, 61

BS$B)S

7.

S$).

7+*

*0is OIM *0is OIM

Packet A%is o6er PSN7 (9M signaling protocol stack M8plane3


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$on%i&ential

Possi%le Scenarios

,ere are two possile s'enarios pertainin to a'ket *is

%eature;

a'ket *is usin 7 oer 4M ase& a'k,aul (e.. 51/1)

a'ket *is usin 7 oer SN ase& a'k,aul (e.. 5t,ernet)

RG=+


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$on%i&ential

Scenario A:.egac& andP#E "ESoPSN

MiAe& mo&e (4M / 5t,ernet) possile

BS$i 1000/!000 or >leAiBS$ re:uire&

TDMTDMT)M T)M

*

ea' *is TCSM

T)M T)M T)M

*ter

*lternatie inter%a'e

MG#

BSC

ea' *is (P#E;)

7o5t,7o5t, ",!",!

",! ",! ",!

A


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$on%i&ential

a'ket / 4M 'onersion

Scenario A=:0ith " in MG#

MiAe& mo&e (4M / 5t,ernet) possile

BS$i 1000/!000 or >leAiBS$ re:uire&

TDMTDMT)M T)M

ea' *is

T)M

*ter


MG#ea' *is

7o5t,7o5t, ",!",!

BSC

",!

A


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$on%i&ential


Scenario $:Packet A%is and A o6er IP "in $SS3

J5 'apailities (*is/*) same2 ut partl not s,own &ue to simpli'it reasons

*n miAe& mo&e possile

TDMTDMT)M

T)MIPoTD

M

IPoTD

M

T)M

BSC

*

*is o4M

ea' *is

T)M T)M T)M*ter

!t7o5t,

7o5t,

*is o5t,

!t

T)M


MG#

AoIP

(E.=11)

$ in BSS

!t",! ",!

TCSM

RG2+

An& 6endorsMG#

RG2+


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$on%i&ential

Scenario "=:Packet A%is and A o6er IP

J5 'apailities (*is/*) same2 ut partl not s,own &ue to simpli'it reasons


eA'ept ea' *is L- *o7 ($ in MEJ)BS$i 1000/!000 or >leAiBS$ re:uire&

T)MIPoTD

M

IPoTD

M BSC

*is o4M

!t7o5t,

7o5t,

*is o5t,

!t

T)M


!t

TDMTDMT)M

T)M

A

ea' *is

T)M

T)M*terAoIP

(E.=11)

$ in BSS

!t",!

TCSM

T)M

",!

AoIP

($o&e'D )

$ in MEJ

RG2+

MG#

$

An& 6endors

MG#

RG2+


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$on%i&ential

Scenario "2:RG2+Packet A%is and A o6er IP

J5 ea' *is 'apailities same2 ut not s,own &ue to simpli'it reasons


eA'ept ea' *is L- *o7 ($ in MEJ)BS$i 1000/!000 or >leAiBS$ re:uire&

#E10 late %eature

T)MIPoTD

M

IPoTD

M BSC

*is o4M

!t7o5t,

7o5t,

*is o5t,

!t

T)M


!t

TDMTDMT)M

T)Mea' *is

*terT)M

",!

AoIP

($o&e'D )

$ in MEJ

RG2+

MG#

$

NSN

MG#

A


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$on%i&ential

Scenario ":RG;+ Stud& itemAll A%is t&pes and A o6er IP " in MG#3

J5 ea' *is 'apailities same2 ut not s,own &ue to simpli'it reasons

*n miAe& mo&e possileBS$i 1000/!000 or >leAiBS$ re:uire&

TDMTDMT)M

T)MIPoTD

M

IPoTD

M

T)M

BSC*is o4M

ea' *is

!t7o5t,

7o5t,

*is o5t,

!t

T)M

!tAoIP

($o&e'D )$ in MEJ


RG;+

MG#

$

An& 6endors

MG#

$


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= Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&ential

Packet A%is 8 !#/S# Re>uirements

3 Supporte& in BS$i 1000/!000 an& >leAiBS$ (new an&upra&e&)

New 5 unit nee&e&

3 Supporte& in >leAi54E5 BS an& >leAiMultira&io BS

3 Me&ia 'onersion (lea' *is) to J5 $5SoSNsupporte& %or 'o-site& +ltraSite / BSplus.

3 * BS site (B$>) operates eit,er in 4nami' *is or a'ket*is mo&e.

3 Supporte& wit, $+!-4 an& $+!-5* sinle $+ operates eit,er in 4nami' *is or a'ket *is mo&e.

RG2+


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$on%i&ential

A o6er IP Implementation ScenariosRG2+3

5 5-*

$orea'ket *isoer 7 *oer 7

5

a'ket *isoer 4M

5S! 5-*

$ore*

oer 7

$SMi

BSea' *is

5-*

$ore

*

oer 7

$SMi

1le*i $S" or $S";i =+++/2+++1le*iE)GE

Eth

1le*iE)GE

Eth

)M

RG2+

a'ket *is P *o7

$ in MEJ

a'ket *is P *o7

$ in BSS

ea' *is P *o7

$ in BSS


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" Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"

$on%i&entialresentation / *ut,or / 4ate

AoIP interfaces in S=?

BS$$SM

ea' *is4M

5t,

5t,

5t,

4M4M

5$

4M

5*

4M 5

55

ES

J

B

*is o4M

*is o5t,

*o7 (>7) +-plane$ompresse& 'o&e's

*o7 (7) +-planeE.=11/$S 4ata

*o4M ()E.=11/$S 4ata

MEJ

MSS*o7 $-plane

M'

*ter

N


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80 Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"$on%i&ential

)escription:

3 ,e *-inter%a'e etween BSS an& MEJ will e ase& on 7 / 5t,ernet

3 E #el- &e%ines two asi' s'enarios %or *o7 %un'tionalit;*o7 rans'o&er in t,e BSS

,e E.=11 / # / 7 proto'ol is emploe&

Supporte& in $SMi (stan&-alone an& 'omi)

*o7 rans'o&er in t,e $ore Network (MEJ)

,e $O45$A / # / 7 proto'ol is emploe&

Supporte& onl wit, a'ket *is in S19

$enefits:

3 Simpli%ies t,e sstem 'on%iuration in Multipoint * / >leAile * s'enarios

3 7mproe& transport e%%i'ien' an& spee', :ualit %or t,e Qrans'o&er in t,e $oreNetworkR s'enario t,rou, stan&ar&isin r>O %or ESM/54E5

A o6er IP

f


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A8interface Alternati6es

MEJ

eer

Sstem

AoIP " in MG#3

BSS*/S7E#*N

BSS*2 #*N*27S+2 B7$$2 S7-7H.!8

$SM

*ter(4M)

"

ea' *(4M2E.=11)

MSS

*is

(4M/7)

BS

BS

*is

(4M/7)

BS

BSBS$

*ter

(4M)

BS$

*o7(7)

*2 *ter2 *o727u2 N2 N(S7-7) or SN

"

r1(

$o&e'DESM 5>#2 ESM >#2 ESM H#2># *M#2 H# *M#2># *M#-JB2 $learmo&e

1(

AoIP2"

in$

SS3

#

+4

7

$o&e'D

#

+4

7

E.=11

*o7 ($ in MEJ);

*o7 ($ in BSS);


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8! Nokia Siemens Networks 6. Multi-operator BSS (MOBSS) / KH /0 !00" / #N!00"$on%i&ential

P#E "oncept

P d #i E l ti E d t E d


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Pseudo #ire Emulation End8to8EndP#E;3

3(6er6ie0 on P#E; P#E; is standardi@ed mechanism 0hich emulates the essential attri%utes of a

ser6ice into Packet S0itched Net0ork PSN3- &i%%erent seri'es 'an e emulate& J52 e.. 4M2 >rame #ela2 *M2 S4H/SON5

- QemulationR asi'all means 'onersion o% t,e 4M tra%%i' to pa'kets a''or&in to J5

- J5 o% 4M tra%%i' is re%erre& to as $5SoSN ($ir'uit 5mulation Seri'es oer SN)

the re>uired functions of P#E; include- en'apsulatin seri'e-spe'i%i' set o% in%ormation ( %ormin J) arriin at an inress port2

- 'arrin t,e J transparentl a'ross a 'ommuni'ation pat, (SN tunnel)2

- manain t,e Js timin an& or&er2

- re-'onertin to t,e oriinal sinal (natie seri'e) in t,e %ar en& o% t,e SN tunnel

P#E; does not intend to guarantee that the emulated ser6ice 0ill %eindistinguisha%le from its origin i


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3P#E; reference model =/23

"ustomer Edge "E3a &ei'e w,ere a natie seri'e oriinates an&/or terminatest,e $5 is not aware t,at it is usin an emulate& seri'e rat,er t,an a natie one

Pro6ider Edge PE3a &ei'e t,at proi&es J5 to $5

PSN tunnela pat, oer SN w,i', t,e 'ontent o% one or more Js is 'onee& t,rou,

P#a set o% 4+ sent t,rou, t,e SN tunnel t,at 'ontains all o% t,e &ata (i.e. paloa& an& 'ontrol in%ormation) re:uire&to proi&e t,e &esire& seri'e

P d #i E l ti E d t E d


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3P#E; reference model 2/23

PSN %oundtra%%i' &ire'tion in w,i', in%ormation &erie& %rom a natie seri'e (in a $5) are a&apte& to a J (an& neAt2 w,en%orme&2 J 4+s are sent t,rou, SN tunnel)

"E %oundtra%%i' &ire'tion in w,i', &ata 'onee& t,rou, J 4+s are re'eie&2 pro'esse&2 re-'onerte& a'k to t,e natie

seri'e an& &eliere& to a $5 Nati6e ser6ice

a seri'e w,i', is suTe't to emulation (i.e. 4M sinal in 'ase o% t,e %eature)

Attachment "ircuit A"3t,e p,si'al (or loi'al) 'ir'uit linkin a 5 to t,e $5 (e.. 'onne'tion wit,in t,e HJ mo&ule responsile %or J5)

$51

51 5!

$5!

SN unnel

J

Natie seri'e

*$

roi&er 5&e

$ustomer 5&e

seu&owire

a'ket Swit',e& Network*tta',ment $ir'uit

SN-oun& $5-oun&

*$

P#E; li ti i $SS "ES PSN


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P#E; reali@ation in $SS: "ESoPSNGeneral featureinformation

3(6er6ie0 on "ESoPSN functionalit&

"ircuit Emulation Ser6ice o6er PSN performs the follo0ing acti6ities:- t,e 4M it stream is semente& a''or&in to t,e user spe'i%ie& SS

- its transmitte& in&i'ate& $M S in suse:uent 4M %rames

- ,ea&ers are a&&e& to ea', sement to %orm a manaeale pa'ket (en'apsulation)

- pa'kets are %orwar&e& to t,e SN tunnel an& transmitte& to its &estination oer 5t,ernet network

- at &estination2 t,e oriinal it stream is re'onstru'te& remoin ,ea&ers2 'on'atenatin %ramesan& reeneratin t,e timin

$5SoSN Hea&er"h2"h24 "h=S=S;= S+

"h2"h24 "h=S=S;= S+

an E= line

)M frame B=

)M frame B2

)M frame B;

"h2"h24 "h= S+S=S;=

SS composed of ;= S

"h2"h24 "h= S=S2S;= "h2"h24 "h=S2S;= S= "h2"h24 "h=S2S;= S=

pa&load header

a resulting P# also called "ESoPSN packet3

-; )M frames mapped-P# composed of ;= S

#e%. . Spennemann2 7nternal 5t,ernet/7 7nter%a'es %or BSS

>eature #e:uest S,eet2 >#S "80602 ersion !.02 Ma !00=

"ES PSN


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"ESoPSNGeneral featureinformation

3Structure of pa&load =/;3

P"M %asics

=2? s S + S = S 2 S ; S 4 S ? S C S D S ;=

%its

= S %it F k!@ %it / =2? s C4 k%it/s

= P"M;+ ;2 F C4 k%it/s 2


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"ESoPSN

3Structure of pa&load 2/;3

a P"M line is structured %& a se>uence of frames5 a )M frame lasts =2? s and carries ;2channels of C4 k%ps in case of E=3

the feature allo0s to select a set of Ss from consecuti6el& transmitted frames ofa gi6en P"M line and to %undle them together into separate set called imeSlot map orimeSlot Set5 SS3

- a user &e%ines ,ow man Ss an& w,i', parti'ular ones %orm parti'ular SS2 t,e sele'tion is permanent2 S0 is alwas eA'lu&e&

- a user &e%ines ,ow man 'onse'utie 4M %rames 'ontriute to a sinle 5t,ernet pa'ket

- t,is sele'tion ,as impa't on t,e re:uire& 5t,ernet an&wi&t, as well as intro&u'e& &ela

- a 'onne'tion w,i', transmits a SS releant 'ontriution o% ',osen amount o% %rames is 'alle& Pseudo #ire P#3

- a J is estalis,e& etween ! roi&er 5&es (5s) 'arrie& oer SN tunnel

"ESoPSN


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3Structure of pa&load ;/;3

the descri%ed structure preser6es %oth the se>uence of Ss 0ithin the particular )M frameas 0ell as the se>uence of frames

each "ESoPSN packet gets a leading control 0ord "#3 0here a packet se>uence num%erisstored5 this allo0s to preser6e the se>uence of "ESoPSN packets as 0ell

this allo0s to re8construct the original P"M data in the recei6ing end

"ESoPSN


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3"ESoPSN protocol stack

standard 6ersion of "ESoPSN protocol stack is sho0n %elo0:

the protocol stack introduces in the 0orst case3 header 0ith length of C %&tes- &i%%erent en&ors ma use mo&i%ie& proto'ol sta'ks2 e.. RP is not supported in $SS=4

- t,us in S=4implementation t,e header length is either D4 %&tes or D+ %&tes(&epen&in on w,et,er U*N is enale& or not)

0orst case protocol header

8

4

=2

2+

4

; 2CH=23

C


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Planning Parameter

Packet A%is " plane protocol stack


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Packet A%is 8 "8plane protocol stack

Packet A%is o6er )M7 "S domain protocol stack "8plane3 0ith .egac& A

interfaceoi'al links;

3OM+ sinalin link %or ea', B$>

3#D sinalin link %or ea', #D

37S4N F."!1 +ser *&aptation aer (7+*)

Stream $ontrol ransmissin roto'ol

(S$)34e%ault port %or OM+si; minS'tport 8"19!

34e%ault port %or #Di; minS'tport 8"19! P i

7 a&&ress %or ea', B$S+

37 a&&ress %or M-plane

37 a&&ress %or $-plane

3M-plane an& $-plane 7 a&&ressma ,ae t,e same alue wit,in aB$S+ ('ollapse& 7 a&&ress)

H4$ oTe't to allo'ate 'apa'it %rom51/1 (BS en& &e%inition must ma'tto BS$ en& one)

H4$ oTe't to allo'ate 'apa'it %rom an51/1 (BS en& &e%inition must ma't toBS$ en& one)

Multi ink Multi $lass oint to ointproto'ol (M/M$-) un&les seeral

H4$ to %orm one lare 'apa'it re'ourse

Packet A%is " plane protocol stack


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Packet A%is 8 "8plane protocol stack

Packet A%is o6er )M7 "S domain protocol stack "8plane3 0ith SIGRAN at A

interface

7 a&&ress %or >leAi 54E5 BS

37 a&&ress %or M-plane

37 a&&ress %or $/+-plane

3M-plane an& $/+-plane 7a&&ress ma ,ae t,e same alue('ollapse& 7 a&&ress)

plane protocol stack


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8plane protocol stack

$S +-plane S +-plane

# 1)

+4

7

M/M$-

H4$

4M 1

# 1)

+4

7

Ethernet

.=

#*+,an&lin

#*+,an&lin

# 1)

+4

7

M/M$-

H4$

4M 1

# 1)

+4

7

Ethernet

.=

$+%rame

$+%rame

Note1) NSN spe'i%i' multipleAin use&

# multipleAin parameters(%or optimiation)

S-+4 muA port !)

$S-+4muA port !)

BS$;+-plane-7 a&&ress 5-7 a&&ress

BS;

+-plane 7 a&&ress $-plane 7 a&&ress

BS$;+-plane-7 a&&ress 5-7 a&&ress

BS;

+-plane 7 a&&ress $-plane 7 a&&ress

he Main planna%le parameters


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he Main planna%le parameters

7+* (Q*4R 4-',annels %or OM+si an& #Dsi)3 S*73 57S$ (one %or B$> P one %or ea', #D)

3 S$ asso'iation3 S$ parameter set(a'ket *is >ast2 a'ket *is Me&ium2 a'ket *is oer Satellite2 user

&e%ine& set)

3 Sour'e I 4estination port numer(Sour'e port numer 4estination port numer on *isinter%a'e)

7

3 Sour'e an& 4estination 7 a&&ress3 4S$ to plane mappin (FoS)M/M$-

3 M$- 'lass mappin (FoS)H4$ (one per 51/12 1 to per B$>)

3 $M-743 Start S3 BJ

Packet A%is S"P association


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Packet A%is - S"P association

a'ket *is site

>leAi BS$

B$S+

B$S+

B$S+

>leAi 54E5 BS

4#D

4#D

4#D

#D1 #D!

#D8

#D6#D9

#D

B$S+

B$S+

B$>

>leAi 54E5 BS

4#D

4#D

4#D

#D1 #D!

#D8

#D6#D9

#D

B$>

#D is asso'iate& wit, a B$S+

3 Balan'in t,e B$S+ loa& (up to 900#D per >leAi BS$ B$S+)

3 Bot, #Ds o% a &ual #D mo&ule tot,e er same B$S+

B$> is asso'iate& wit, a B$S+

S$ asso'iation

S#$/S4 7 a&&ress an& S#$/4S+4 port numer

3 4e%ault port %or OM+si;minS'tport 8"19!

3 4e%ault port %or #Di; minS'tport 8"19! P i


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$enefits

)&namic A%is toda&


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)&namic A%is toda&

3 5a', oi'e ',annel is allo'ate& to a &e&i'ate& air inter%a'e ',annel

ea' 4MJ5 $5SoSN

3 J5 transports timeslots snaps,ots (empt or not)

3 $onstant an&wi&t, nee&VV

3 Some sains 'an e a',iee& (unallo'ate& timeslots 'on%iuration)

Packet A%is pools all traffic t&pes


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Packet A%is pools all traffic t&pes

3 4M; *ll timeslots/51 are poole& sinleQit-pipeRC similar to 5t,ernet me&ia

3 No &e&i'ate& an&wi&t, resere&

3 #*+ %ramin an& it stu%%in remoe&

3 No empt pa'kets are sent (+nuse&2 silen'e C)

*lmost same pa'kets in 4M an& 5t,ernet options

Packet A%is 8 $enefits


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Packet A%is 8 $enefits

3 ,e an&wi&t, sains a',iee& are sini%i'ant &ue to onl trans%errinpa'kets t,at 'ontain &ata2 'ompare& wit, t,e preious te',nolo t,at

re:uire& empt timeslots to maintain a 'onstant it rate.3 *is an&wi&t, ains are a',iee&

#emoin unnee&e& its an& ,ea&er in%ormation %rom #*+/$+ %rames

Sains &ue to silen'e %rames are s,orter

*ll tra%%i' ($S- an& S u-planes2 '-plane (#DS7Es) an& m-plane (OM+S7Es))poole& to t,e same an&wi&t, (multipleAin ain)

Ban&wi&t, re:uire& &epen&s on a'tual nee& (no loner 'onstant)

MultipleAin o% tra%%i' to same pa'kets

Hea&er 'ompression

*reation an& oersus'ription possile in t,e network

3 $ost o% transmission

5t,ernet transport is 'ost e%%i'ient in man areas

5%%i'ient utiliation o% t,e 'urrent 4M transport

3$S oi'e :ualit an& $S &ata t,rou,put not a%%e'te&

Documents

Module 2 Protocol Stackv1.ppt