IETF Logo Mail Archive

[Sip] What is the port number in "Invite" request-line? Thanks

"Yuantao Zhang" <yuantao.zhang@ericsson.com> Wed, 04 June 2008 10:11 UTC

Return-Path: <sip-bounces@ietf.org>
X-Original-To: sip-archive@optimus.ietf.org
Delivered-To: ietfarch-sip-archive@core3.amsl.com
Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 4450E3A6C77; Wed, 4 Jun 2008 03:11:05 -0700 (PDT)
X-Original-To: sip@core3.amsl.com
Delivered-To: sip@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id BB5DD3A6B83 for <sip@core3.amsl.com>; Wed, 4 Jun 2008 03:11:03 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.248
X-Spam-Level:
X-Spam-Status: No, score=-6.248 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HELO_EQ_SE=0.35, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lpDW6s9-1WFQ for <sip@core3.amsl.com>; Wed, 4 Jun 2008 03:10:56 -0700 (PDT)
Received: from mailgw3.ericsson.se (mailgw3.ericsson.se [193.180.251.60]) by core3.amsl.com (Postfix) with ESMTP id 4E5E93A6C8B for <sip@ietf.org>; Wed, 4 Jun 2008 03:10:56 -0700 (PDT)
Received: from mailgw3.ericsson.se (unknown [127.0.0.1]) by mailgw3.ericsson.se (Symantec Mail Security) with ESMTP id 7D7B320B0D; Wed, 4 Jun 2008 12:10:58 +0200 (CEST)
X-AuditID: c1b4fb3c-ad099bb00000193b-03-48466a3280c5
Received: from esealmw128.eemea.ericsson.se (unknown [153.88.254.121]) by mailgw3.ericsson.se (Symantec Mail Security) with ESMTP id 594A1209F2; Wed, 4 Jun 2008 12:10:58 +0200 (CEST)
Received: from esealmw126.eemea.ericsson.se ([153.88.254.170]) by esealmw128.eemea.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 4 Jun 2008 12:10:58 +0200
Received: from emyklmw102.eapac.ericsson.se ([150.236.92.102]) by esealmw126.eemea.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 4 Jun 2008 12:10:57 +0200
Received: from ecnbjmw513.eapac.ericsson.se ([150.236.34.26]) by emyklmw102.eapac.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Wed, 4 Jun 2008 18:10:15 +0800
X-MimeOLE: Produced By Microsoft Exchange V6.5
Content-class: urn:content-classes:message
MIME-Version: 1.0
Date: Wed, 04 Jun 2008 18:10:13 +0800
Message-ID: <BAF5F619287DFA4F8BE069A8198CBBB201D578AA@ecnbjmw513.eapac.ericsson.se>
In-Reply-To: <CA9998CD4A020D418654FCDEF4E707DF064E2D35@esealmw113.eemea.ericsson.se>
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
Thread-Topic: What is the port number in "Invite" request-line? Thanks
Thread-Index: Aci7y8Ccu2ENUpcER8SVd+I4biihjwAHYouwAABEjdACjSM50A==
References: <BAF5F619287DFA4F8BE069A8198CBBB201CA6559@ecnbjmw513.eapac.ericsson.se> <CA9998CD4A020D418654FCDEF4E707DF064E2D35@esealmw113.eemea.ericsson.se>
From: Yuantao Zhang <yuantao.zhang@ericsson.com>
To: sip@ietf.org, discussion@sipforum.org
X-OriginalArrivalTime: 04 Jun 2008 10:10:15.0132 (UTC) FILETIME=[2ECFC1C0:01C8C62B]
X-Brightmail-Tracker: AAAAAA==
Subject: [Sip] What is the port number in "Invite" request-line? Thanks
X-BeenThere: sip@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Session Initiation Protocol <sip.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/sip>, <mailto:sip-request@ietf.org?subject=unsubscribe>
List-Archive: <https://www.ietf.org/mailman/private/sip>
List-Post: <mailto:sip@ietf.org>
List-Help: <mailto:sip-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/sip>, <mailto:sip-request@ietf.org?subject=subscribe>
Content-Type: multipart/mixed; boundary="===============0143964206=="
Sender: sip-bounces@ietf.org
Errors-To: sip-bounces@ietf.org

Dear all

 

INVITE sip:bob@biloxi.com SIP/2.0:5555

INVITE sip:bob@biloxi.com SIP/2.0

 

Above are 2 "Invite" request-line examples. In example one, it indicates
a port number, 5555. What does the port number mean? 

 

Is it the port number of SIP proxy? Why we include port number here? The
SIP proxy(biloxi.com) application layer who receives this "Invite"
should receive this via port 5555 from lowe layer(UDP). Therefore, The
SIP proxy(biloxi.com) application layer already know the port is 5555.
Actualy, the SIP proxy application layer keeps listening port 5555. 

 

The second "Invite" request-line example is from RFC3261 and does not
include port number. Can I say the port number is useless? So why
example one includes a useless part in "Invite" request-line URL? 

 

Or is the port number is which the UAS is listening to? How the UAC
knows it is 5555 if so? 

 

Any standard on this port number issue? Thanks. 

 

Best regards

Steven


_______________________________________________
Sip mailing list  https://www.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementors@cs.columbia.edu for questions on current sip
Use sipping@ietf.org for new developments on the application of sip

v2.46.0 | Report a Bug | By Email | System Status