ip address allocation - 5.4.1.1 - r7

8/12/2019 IP Address Allocation - 5.4.1.1 - r7

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5.4.1.1 IP Address Allocation using VSNCP and PMIPv6 in eHRPD

This section describes the interactions between the VSNCP protocol and the PMIPv6

protocol to accomplish IP address allocation on S2a.

The VSNCP stage 3 protocol details are in section !..".

#or PMIPv6 stage 3 protocol details$ re%er to 3&PP TS 2'.2() *++,.

5.4.1.1.1 IP Address Allocation VSNCP Con!igure"Re#uest

INITIAL ATTACH

There are %o-r parameters o% signi%icance to the IP address allocation process that are sent

b the /0 on the VSNCP Con%ig-re1e-est message %or an initial attach4

P5N Tpe

P5N ddress

Protocol Con%ig-ration 7ptions 8PC79 that ma contain an indication that

de%erred IPv" address allocation is desired$

ddress llocation Ca-se.

In the VSNCP Con%ig-re1e-est message sent %rom the /0 to the :S&;$ the


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In the VSNCP Con%ig-re1e-est$ the PC7 ma contain an indication that de%erred IPv"

address allocation is desired. See TS 2'.2() *++,.

In the VSNCP Con%ig-re1e-est$ the


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;hen the P1&; receives the P@/ containing an indication %or handover attach$ it

%ollows the 3&PP 0PC proced-res %or handover 8see TS 23."!2 *++, and TS 2'.2() *++,9.

I% the P1&; determines that the handover attachment to the PN cannot be completed$ it

will indicate that via the Stat-s %ield in a Pro+ @inding cBnowledgement 8P@9message.

ss-ming there are no errors$ the P1&; ret-rns a P@ message to the :S&;.

5.4.1.1.4 IP Address Allocation VSNCP Con!igure"Ac+

INITIAL ATTACH and HANDOVER ATTACH

I% the :S&; receives a P@ %rom the P1&; with a Stat-s %ield val-e indicating %ail-reto complete the re-ested P5N attach$ the :S&; shall send a VSNCP Con%ig-re1e?ect

to the /0.

;hen the :S&; receives the P@ %rom the P1&; indicating s-ccess%-l IP address

allocation$ it e+amines the contents to determine what IP address8es9 have been allocated

to the /0 and constr-cts a VSNCP Con%ig-re1cB message.

I% the


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11111111111111

1.1.4.1 */PP$ VSNCP Con!iguration 0)tions

Con%ig-ration options shall be encoded as speci%ied in #C66 0rror4 e%erence so-rcenot %o-nd. Table lists all the con%ig-ration options re-ired %or 3&PP2 VSNCP.

received con%ig-ration option that is -nrecogniDed shall be considered -nacceptable per#C 66 0rror4 e%erence so-rce not %o-nd.


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Con!iguration0)tion

&)e Con!igu"ration0)tion

2engt3

(octets)

Value

P5N Identi%ier ! 3 P5N Identi%ier is a octet identi%ier selected b the /0

%or a P5N. Valid val-es are %rom ! to ). The de%a-ltP5N is identi%ied b val-e ). This option shall be

present as the %irst con%ig-ration option in all 3&PP2

VSNCP pacBets.

ccess Point Name !2 31!21

!!

Val-e %ield o% the ccess Point Name val-e I0 as

de%ined in TS 2".!!E Cla-se !.).6. *++,Section

'.'.". o% TS 2".3!0rror4 e%erence so-rce not %o-nd.

P5N Tpe !3 3 Valid val-es are

A IPv"

2 A IPv6

3 A IPv"FIPv6

Val-e portion o% the P5N Tpe I0 as de%ined in '.'.".(.

o% TS 2".3!0rror4 e%erence so-rce not %o-nd.

P5N address !" (31) Val-e portion o% the


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IPv" 5e%a-lt o-ter

ddress

!E 6 0ncoded as speci%ied in section !.."..a "1octet IPv"

address. Incl-des IPv" 5e%a-lt o-ter address assigned

b P5N gatewa %or the P5N.

ddress llocation

Ca-se

!' 3 See Table ++ %or the s-pported ddress llocation

Ca-se val-es.

ale 1 VSNCP Con!iguration 0)tions

N7T04 The %ollowing are descriptions o% the 0rror Codes in Table 4

Value General Description Explanation of Use

! 1 &eneral 0rror /sed when there is no other speci%ic error code available to

report the %ail-re

1 /na-thoriDed PN e-ested PN is not a-thoriDed %or this -ser

2 1 P5N Himit 0+ceeded N-mber o% P5N %or this connection has e+ceeded the ma+im-mallowed limit

3 1 No P1&; vailable No P1&; address available to establish the P5N connection

" 1 P1&; /nreachable P1&; is not reachable or not responding

) 1 P1&; e?ect P5N connection attempt re?ected b P1&;

6 1 Ins-%%icient Parameters e-est does not have s-%%icient parameters to proceed

( 1 eso-rce /navailable :S&; does not have s-%%icient reso-rce to proceed with the

re-est

E 1 dmin Prohibited P5N connection re-est is administrativel prohibited at the:S&;

' A P5N1I5 lread In /se The P5N1I5 received in a VSNCP Con%ig-re1e-est is alread

in -se %or a P5N connection.

! A S-bscription Himitation The


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2 1 P5N Himit 0+ceeded N-mber o% P5N %or this connection has e+ceeded the

ma+im-m allowed limit

3 1 No P1&; vailable No P1&; address available to establish the P5N

connection

" 1 P1&; /nreachable P1&; is not reachable or not responding

) 1 P1&; e?ect P5N connection attempt re?ected b P1&;

6 1 Ins-%%icient Parameters e-est does not have s-%%icient parameters toproceed

( 1 eso-rce /navailable :S&; does not have s-%%icient reso-rce to proceed

with the re-est

E 1 dmin Prohibited P5N connection re-est is administrativel prohibited

at the :S&;

' A P5N1I5 lread In /se The P5N1I5 received in a VSNCP Con%ig-re1e-estis alread in -se %or a P5N connection.

ip address allocation - 5.4.1.1 - r7

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