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AAA Usage for IP Telephony with QoS. H. Sinnreich, D. Rawlins, A. Johnston – MCI WorldCom Stephen Thomas - Transnexus. <draft-sinnreich-aaa-interdomain-sip-qos-osp-00.txt> <draft-johnston-sip-osp-token-00.txt >. AAA for Interdomain SIP Call with QoS. Directory. Directory. OSP. OSP.

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aaa usage for ip telephony with qos

AAA Usage for IP Telephony with QoS

H. Sinnreich, D. Rawlins, A. Johnston – MCI WorldCom

Stephen Thomas - Transnexus

<draft-sinnreich-aaa-interdomain-sip-qos-osp-00.txt>

<draft-johnston-sip-osp-token-00.txt >

aaasipqos

aaa for interdomain sip call with qos
AAA for Interdomain SIP Call with QoS

Directory

Directory

OSP

OSP

Policy

Server

Policy

Server

OSP

Client

OSP

Server

OSP

Client

Clearinghouse

COPS

COPS

Session

PEP

Session

PEP

SIP

SIP

SIP

SIP

SIP

UAC

SIP

UAS

SIP

Proxy

SIP

UAS

SIP

UAC

Client

Client

RSVP

RSVP

RSVP

RSVP

Host

Edge

Router

Edge

Router

RSVP

Host

SIP Phone

Domain 1

Transit Networks

Domain 1

IP Telephony

Gateway

aaasipqos

interdomain qos enabled call flows

Domain 1

OSP Server

Domain 2

Interdomain QoS Enabled Call Flows

1 <AuthReq>

2 <AuthRsp>

Domain 1 gets authorization

token is carried here

3 INVITE

4 Session Progress 183

SIP call setup D1 to D 2

5 180 Ringing

6 200 OK

7 ACK

8 PATH

RSVP setup D1 to D 2

9 RESV

10 RSV-CONF

11 PATH

RSVP setup D2 to D 1

12 RESV

13 RSV-CONF

Call is set up

14 RTP flows are established

15 BYE

SIP BYE D1 to D2

16 200 OK

17 PATHTEAR

RSVP PATHTEAR

18 PATHTEAR

19 <UsageInd>

OSP Usage Reporting

21 <UsageInd>

20 <UsageCnf>

22 <UsageCnf>

aaasipqos

aaa model for sip qos

Directory

1a

2a

3a

AAA and Policy

Inter-

domain

AAA

SIP

UAC

SIP UAS

6a

5a

4a

Domain of Service Provider

IP Comm.

Client

1p

2p

1r

2r

RSVP

Host

RSVP

Router

4r

3r

AAA Model for SIP QoS

aaasipqos

call flow example pull model for qos enabled

POL1

POL2

SIP2

SIP1

R1

CH

R2

GWY

SIP Phone

1 INVITE

2 REQ OSP

3 <AuthReq>

4 <AuthRsp>

5 DEC

6 INVITE

7 INVITE

8 183

9 REQ LDP

10 DEC

LDP

Telephony Signaling

11 RPT

12 DEC

13 183

14 REQ LDP

15 DEC

LDP

16 RPT

17 DEC

18 183

19 180

21 180

20 180

24 200 OK

23 200 OK

22 200 OK

25 ACK

26 ACK

27 ACK

28 PATH

29 PATH

30 PATH

33 RESV

32 RESV

31 RESV

Direction 1

34 RESV-CONF

35 RESV-CONF

36 RESV-CONF

RSVP Signaling

39 PATH

38 PATH

37 PATH

40 RESV

41 RESV

42 RESV

Direction 2

45 RESV-CONF

44 RESV-CONF

43 RESV-CONF

Call Flow Example: Pull Model for QoS Enabled

aaasipqos

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