Wireshark · Ethereal-users: [Ethereal-users] [Err] Ethereal-users Digest, Vol 40, Issue 18

[spam_master@xxxxxxxxx]

-------------------
The Ethereal project is being continued at a new site.  Please go to
http://www.wireshark.org and subscribe to wireshark-users@xxxxxxxxxxxxx.
Don't forget to unsubscribe from this list at
http://www.ethereal.com/mailman/listinfo/ethereal-users
-------------------

Transmit Report:

skypiri@xxxxxxxxxxxxxxxxxxx���� ���� �߼��� 3�� �õ������� �����Ͽ����ϴ�.
(���� ���� : 550 5.1.1 <skypiri@xxxxxxxxx>... User unknown(203.253.150.140))

<����> ���� ������ ���� ����
User unknown       :������ ������ ����ڰ� �������� ����
Socket connect fail:���� ���� ������ ���� ����
DATA write fail    :���� ���� ������ �޼��� �۽� ����
DATA reponse fail  :���� ���� �����κ��� �޼��� ���� ����

Reporting-MTA: dns; hau.ac.kr

Final-Recipient: rfc822;skypiri@mail.hangkong.ac.kr
Diagnostic-Code: smtp; 550 error - 5.1.1 <skypiri@hau.ac.kr>... User
	unknown(203.253.150.140)
Action: failed
Status: 5.1.1

--- Begin Message ---

From: ethereal-users-request@xxxxxxxxxxxx

Date: Thu, 17 Aug 2006 13:55:04 -0500 (CDT)

Send Ethereal-users mailing list submissions to
	ethereal-users@xxxxxxxxxxxx

To subscribe or unsubscribe via the World Wide Web, visit
	http://www.ethereal.com/mailman/listinfo/ethereal-users
or, via email, send a message with subject or body 'help' to
	ethereal-users-request@xxxxxxxxxxxx

You can reach the person managing the list at
	ethereal-users-owner@xxxxxxxxxxxx

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Ethereal-users digest..."


Reply-To: Ethereal user support <ethereal-users@xxxxxxxxxxxx>

Today's Topics:

   1. [Err] Ethereal-users Digest, Vol 40, Issue 17
      (spam_master@xxxxxxxxx)
   2. round trip delay in RTCP packets (amenezes@xxxxxxxxxxxxx)


----------------------------------------------------------------------

Message: 1
Date: Fri, 18 Aug 2006 02:08:19 +0900
From: spam_master@xxxxxxxxx
Subject: [Ethereal-users] [Err] Ethereal-users Digest, Vol 40, Issue
	17
To: ethereal-users@xxxxxxxxxxxx
Message-ID: <20060817170120.D8F8E4615A@xxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"

Transmit Report:

skypiri@xxxxxxxxxxxxxxxxxxx���� ���� �߼��� 3�� �õ������� �����Ͽ����ϴ�.
(���� ���� : 550 5.1.1 <skypiri@xxxxxxxxx>... User unknown(203.253.150.140))

<����> ���� ������ ���� ����
User unknown       :������ ������ ����ڰ� �������� ����
Socket connect fail:���� ���� ������ ���� ����
DATA write fail    :���� ���� ������ �޼��� �۽� ����
DATA reponse fail  :���� ���� �����κ��� �޼��� ���� ����
-------------- next part --------------
Skipped content of type message/delivery-status-------------- next part --------------
An embedded message was scrubbed...
From: ethereal-users-request@xxxxxxxxxxxx
Subject: Ethereal-users Digest, Vol 40, Issue 17
Date: Thu, 17 Aug 2006 12:00:06 -0500 (CDT)
Size: 11430
Url: /pipermail/attachments/20060818/9993ed2c/attachment.mht
-------------- next part --------------


------------------------------

Message: 2
Date: Thu, 17 Aug 2006 15:54:25 -0300
From: amenezes@xxxxxxxxxxxxx
Subject: [Ethereal-users] round trip delay in RTCP packets
To: ethereal-users@xxxxxxxxxxxx
Message-ID:
	<OFC16350A2.1AC982DB-ON832571CD.0064927E-832571CD.0067A9DA@LocalDomain>
	
Content-Type: text/plain; charset="iso-8859-1"



How to calculate the round trip delay in a RTCP packets using Ethereal for
windows?

According to H.225, in a RTCP frame and RTP informations, we can calculate
round trip delay with the formula " delay=A - LSR - DLSR".

Parameters A and DLSR are easily find in a Ethereal rtcp frame :

1) A is the time the rtcp frame arrived since the begining of the call.

2) DLSR in seconds, is the number informed in dlsr positions divided by
65536.

3) But is hard to understand the big number in "Last SR time stamp" . How
to find LSR in seconds? According to H.225, LSR is the middle 32 ou 64 of
last NTP time stamp.

Please see the capture below of a Voip call:

(Embedded image moved to file: pic11647.pcx)



(Embedded image moved to file: pic17432.jpg)


Alfredo Guimar�es Menezes
Furnas Centrais El�tricas SA
DET.T Depto de Engenharia de Telecomunica��es
Divis�o de Engenharia de Telefonia e Sistemas Auxiliares
Rua Real Grandeza 219 sala 308 Bloco B
Botafogo Rio de Janeiro  RJ Brasil CEP 22281-900
Tel  (21)2528-5770/4909
Fax (21)2528-2186
email: amenezes@xxxxxxxxxxxxx


______________________________________________________________________
FURNAS CENTRAIS ELETRICAS S.A.
O emitente desta mensagem eletronica e responsavel por seu conteudo e enderecamento.

A mensagem, incluindo seus anexos,  pode  conter  informacao  confidencial  e/ou  de
propriedade da Empresa. Caso voce nao seja o destinatario indicado,  nao  a  utilize,
copie ou  divulgue,  avisando  imediatamente  ao  remetente,  apagando  em  seguida  a
mensagem recebida indevidamente.
______________________________________________________________________
-------------- next part --------------
A non-text attachment was scrubbed...
Name: pic11647.pcx
Type: application/octet-stream
Size: 109253 bytes
Desc: not available
Url : /pipermail/attachments/20060817/742eac0f/pic11647.obj
-------------- next part --------------
A non-text attachment was scrubbed...
Name: pic17432.jpg
Type: image/jpeg
Size: 2564 bytes
Desc: not available
Url : /pipermail/attachments/20060817/742eac0f/pic17432.jpg

------------------------------

_______________________________________________
Ethereal-users mailing list
Ethereal-users@xxxxxxxxxxxx
http://www.ethereal.com/mailman/listinfo/ethereal-users


End of Ethereal-users Digest, Vol 40, Issue 18
**********************************************

--- End Message ---

_______________________________________________
Ethereal-users mailing list
Ethereal-users@xxxxxxxxxxxx
http://www.ethereal.com/mailman/listinfo/ethereal-users