IETF Logo Mail Archive

Re: Update to OSPF Hello procedure[draft-kou-ospf-immediately-replying-hello-00.txt]

Nitin Kakkar <nitink@HUAWEI.COM> Thu, 29 December 2005 11:06 UTC

Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1ErvcC-0000I3-Qq for ospf-archive@megatron.ietf.org; Thu, 29 Dec 2005 06:06:38 -0500
Received: from wildebeest.ease.lsoft.com (wildebeest.ease.lsoft.com [209.119.0.21]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id GAA07254 for <ospf-archive@LISTS.IETF.ORG>; Thu, 29 Dec 2005 06:05:25 -0500 (EST)
Received: from PEACH.EASE.LSOFT.COM (lists.state.gov) by wildebeest.ease.lsoft.com (LSMTP for Windows NT v1.1b) with SMTP id <8.00007C1E@wildebeest.ease.lsoft.com>; Thu, 29 Dec 2005 6:06:05 -0500
Received: by PEACH.EASE.LSOFT.COM (LISTSERV-TCP/IP release 14.4) with spool id 94975713 for OSPF@PEACH.EASE.LSOFT.COM; Thu, 29 Dec 2005 06:06:05 -0500
Received: from 61.144.161.54 by WALNUT.EASE.LSOFT.COM (SMTPL release 1.0m) with TCP; Thu, 29 Dec 2005 06:05:53 -0500
Received: from huawei.com (szxga02-in [172.24.2.6]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0IS900DEABAHTX@szxga02-in.huawei.com> for OSPF@PEACH.EASE.LSOFT.COM; Thu, 29 Dec 2005 19:15:53 +0800 (CST)
Received: from szxml01-in ([172.24.1.3]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0IS90015HBAHHR@szxga02-in.huawei.com> for OSPF@PEACH.EASE.LSOFT.COM; Thu, 29 Dec 2005 19:15:53 +0800 (CST)
Received: from Nitink20745 ([10.18.4.177]) by szxml01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0IS900K9HBG23A@szxml01-in.huawei.com> for OSPF@PEACH.EASE.LSOFT.COM; Thu, 29 Dec 2005 19:19:16 +0800 (CST)
MIME-version: 1.0
X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180
X-Mailer: Microsoft Outlook, Build 10.0.6626
Content-type: multipart/alternative; boundary="Boundary_(ID_91uVJpfS6fWSLto1txY0HA)"
Importance: Normal
X-Priority: 3 (Normal)
X-MSMail-priority: Normal
Message-ID: <000001c60c67$b37d83b0$b104120a@china.huawei.com>
Date: Thu, 29 Dec 2005 16:34:53 +0530
Reply-To: Mailing List <OSPF@PEACH.EASE.LSOFT.COM>
Sender: Mailing List <OSPF@PEACH.EASE.LSOFT.COM>
From: Nitin Kakkar <nitink@HUAWEI.COM>
Subject: Re: Update to OSPF Hello procedure[draft-kou-ospf-immediately-replying-hello-00.txt]
To: OSPF@PEACH.EASE.LSOFT.COM
In-Reply-To: <017201c60c1e$8f545a20$610c6f0a@china.huawei.com>
Precedence: list
List-Help: <http://peach.ease.lsoft.com/scripts/wa.exe?LIST=OSPF>, <mailto:LISTSERV@PEACH.EASE.LSOFT.COM?body=INFO+OSPF>
List-Unsubscribe: <mailto:OSPF-unsubscribe-request@PEACH.EASE.LSOFT.COM>
List-Subscribe: <mailto:OSPF-subscribe-request@PEACH.EASE.LSOFT.COM>
List-Owner: <mailto:OSPF-request@PEACH.EASE.LSOFT.COM>
List-Archive: <http://peach.ease.lsoft.com/scripts/wa.exe?LIST=OSPF>

Suppose there are n routers on a Link and all of them come up almost
simultaneously.

Seems like the routers which were fractionally faster to send hello will be
picked for DR/BDR election !!!

 

May be you can think of  immediately replying to hello packet "Only when DR
is already elected on the link".

 

Rgds

Nitin

 

-----Original Message-----
From: Mailing List [mailto:OSPF@PEACH.EASE.LSOFT.COM] On Behalf Of
Kouzengjie
Sent: Thursday, December 29, 2005 7:51 AM
To: OSPF@PEACH.EASE.LSOFT.COM
Subject: Update to OSPF Hello
procedure[draft-kou-ospf-immediately-replying-hello-00.txt]

 

A New Internet-Draft is available from the on-line Internet-Drafts
directories.
The draft can be found here:
http://www.ietf.org/internet-drafts/draft-kou-ospf-immediately-replying-hell
o-00.txt

 

 This memo documents an extension of the OSPF protocol to reach 
   "ExStart" state more quickly. Currently, the OSPF behavior requires 
   the Hello Packet to be sent between the neighbors every 
   HelloInterval. This document proposes to generalize the use of 
   Immediately Replying Hello which could reduce the time required to 
   reach the OSPF "ExStart" state and  expedite the routing table 
   convergence.

v2.23.0 | Report a Bug | By Email