From rtg-bfd-bounces@ietf.org Thu Apr 13 07:49:13 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FU0Jz-0001U3-MD; Thu, 13 Apr 2006 07:49:11 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FU0Jy-0001Tt-GX for rtg-bfd@ietf.org; Thu, 13 Apr 2006 07:49:10 -0400 Received: from web53815.mail.yahoo.com ([206.190.39.59]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FU0Jx-0001Uv-9b for rtg-bfd@ietf.org; Thu, 13 Apr 2006 07:49:10 -0400 Received: (qmail 21876 invoked by uid 60001); 13 Apr 2006 11:49:08 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=4cwZa1LfL7WXv0zC8D0f0UNTZIwmcbDK+kBpQcnfRFYwe2JN8GJixV3BcczcFJSLEeLRz17AJU64YdHwrPD0OM+mlnGg5QkPZgyKSRsF1ikPhVMt6ihX9iL/QONNwFezuYuKRlo+QjETq9y7DgJ1S5ggOpGDMeSuHMVLa/N1wCg= ; Message-ID: <20060413114908.21874.qmail@web53815.mail.yahoo.com> Received: from [59.144.31.95] by web53815.mail.yahoo.com via HTTP; Thu, 13 Apr 2006 12:49:08 BST Date: Thu, 13 Apr 2006 12:49:08 +0100 (BST) From: "Dr. Soumitra Sinha Roy" To: rtg-bfd@ietf.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 7d33c50f3756db14428398e2bdedd581 Subject: State changes with Demand Mode enable or disabled X-BeenThere: rtg-bfd@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "RTG Area: Bidirectional Forwarding Detection DT" List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: rtg-bfd-bounces@ietf.org Sir, In draft-ietf-bfd-base-04.txt - in section 6.5,page no.20, it is stated that Demand mode may be enabled or disabled at any time by setting or clearing the Demand bit in the BFD Control packet, without affecting the BFD session state. "without affecting the session state" means that the session state changes will happen without being dependent whether the demand bit is 0 or 1. Is my understanding correct ? With Regards, Murti ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com From rtg-bfd-bounces@ietf.org Thu Apr 13 11:21:31 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FU3dO-0003NC-DS; Thu, 13 Apr 2006 11:21:26 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FU3dN-0003N7-HN for rtg-bfd@ietf.org; Thu, 13 Apr 2006 11:21:25 -0400 Received: from colo-dns-ext2.juniper.net ([207.17.137.64]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FU3dM-0000DD-6C for rtg-bfd@ietf.org; Thu, 13 Apr 2006 11:21:25 -0400 Received: from merlot.juniper.net (merlot.juniper.net [172.17.27.10]) by colo-dns-ext2.juniper.net (8.12.3/8.12.3) with ESMTP id k3DFLN1Z007100; Thu, 13 Apr 2006 08:21:23 -0700 (PDT) (envelope-from dkatz@juniper.net) Received: from [172.16.12.13] (nimbus-sc.juniper.net [172.16.12.13]) by merlot.juniper.net (8.11.3/8.11.3) with ESMTP id k3DFLM512135; Thu, 13 Apr 2006 08:21:23 -0700 (PDT) (envelope-from dkatz@juniper.net) In-Reply-To: <20060413114908.21874.qmail@web53815.mail.yahoo.com> References: <20060413114908.21874.qmail@web53815.mail.yahoo.com> Mime-Version: 1.0 (Apple Message framework v746.3) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <0320FC54-E993-4A33-A696-C33A6B6B240E@juniper.net> Content-Transfer-Encoding: 7bit From: Dave Katz Date: Thu, 13 Apr 2006 08:21:21 -0700 To: "Dr. Soumitra Sinha Roy" X-Mailer: Apple Mail (2.746.3) X-Spam-Score: 0.0 (/) X-Scan-Signature: 7a6398bf8aaeabc7a7bb696b6b0a2aad Cc: rtg-bfd@ietf.org Subject: Re: State changes with Demand Mode enable or disabled X-BeenThere: rtg-bfd@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "RTG Area: Bidirectional Forwarding Detection DT" List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: rtg-bfd-bounces@ietf.org On Apr 13, 2006, at 4:49 AM, Dr. Soumitra Sinha Roy wrote: > "without affecting the session state" means that the > session state changes will happen without being > dependent whether the demand bit is 0 or 1. Is my > understanding correct ? It means that demand mode can be turned on or off without forcing the session to go down and come back up. --Dave From rtg-bfd-bounces@ietf.org Mon Apr 17 10:15:46 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FVUW0-0000xb-CY; Mon, 17 Apr 2006 10:15:44 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FVUVz-0000xW-3K for rtg-bfd@ietf.org; Mon, 17 Apr 2006 10:15:43 -0400 Received: from imr1.ericy.com ([198.24.6.9]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FVUVy-0000BN-Qp for rtg-bfd@ietf.org; Mon, 17 Apr 2006 10:15:43 -0400 Received: from eamrcnt760.exu.ericsson.se (eamrcnt760.exu.ericsson.se [138.85.133.38]) by imr1.ericy.com (8.13.1/8.13.1) with ESMTP id k3HEFgKw027450 for ; Mon, 17 Apr 2006 09:15:42 -0500 Received: by eamrcnt760 with Internet Mail Service (5.5.2657.72) id ; Mon, 17 Apr 2006 09:15:42 -0500 Message-ID: From: "Stephen Nadas (NC/TNT)" To: rtg-bfd@ietf.org Date: Mon, 17 Apr 2006 09:15:35 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-Type: text/plain X-Spam-Score: 0.0 (/) X-Scan-Signature: 68c8cc8a64a9d0402e43b8eee9fc4199 Subject: What is status of draft-ietf-bfd-mib-xx.txt X-BeenThere: rtg-bfd@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "RTG Area: Bidirectional Forwarding Detection DT" List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: rtg-bfd-bounces@ietf.org Hi, As best I can tell, there was a flurry of activity on -02 last August (changes to -02 were discussed...) Since then nothing and, per ID tracker -02 draft has expired. What is status? Thanks, Steve Stephen Nadas Ericsson IPI stephen.nadas@ericsson.com 920 Main Campus Dr. Voice: +1-919-472-9935 Fax: x/9999 Suite 500 Mobile: +1-919-522-0991 ECN: 802 29935 Raleigh, NC 27606 From rtg-bfd-bounces@ietf.org Mon Apr 17 12:21:24 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FVWTb-0003Ts-RI; Mon, 17 Apr 2006 12:21:23 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FVWTa-0003Th-6D for rtg-bfd@ietf.org; Mon, 17 Apr 2006 12:21:22 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FVWTY-0006P1-Vj for rtg-bfd@ietf.org; Mon, 17 Apr 2006 12:21:22 -0400 Received: from rtp-core-2.cisco.com ([64.102.124.13]) by rtp-iport-2.cisco.com with ESMTP; 17 Apr 2006 12:21:21 -0400 X-IronPort-AV: i="4.04,125,1144036800"; d="scan'208"; a="86579766:sNHT29535888" Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id k3HGLKvF007446; Mon, 17 Apr 2006 12:21:20 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Mon, 17 Apr 2006 12:21:20 -0400 Received: from [10.83.15.57] ([10.83.15.57]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Mon, 17 Apr 2006 12:21:20 -0400 In-Reply-To: References: Mime-Version: 1.0 (Apple Message framework v749.3) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <8C25C449-94AB-4600-A1E8-EE63283F9E98@cisco.com> Content-Transfer-Encoding: 7bit From: "Thomas D. Nadeau" Date: Mon, 17 Apr 2006 12:21:26 -0400 To: "Stephen Nadas (NC/TNT)" X-Mailer: Apple Mail (2.749.3) X-OriginalArrivalTime: 17 Apr 2006 16:21:20.0369 (UTC) FILETIME=[F6220E10:01C6623A] X-Spam-Score: 0.0 (/) X-Scan-Signature: 7655788c23eb79e336f5f8ba8bce7906 Cc: rtg-bfd@ietf.org Subject: Re: What is status of draft-ietf-bfd-mib-xx.txt X-BeenThere: rtg-bfd@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "RTG Area: Bidirectional Forwarding Detection DT" List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: rtg-bfd-bounces@ietf.org Zafar and I worked with Jeff on his review comments, but we have a bit more to do on that. Also, we haven't updated the published version of the draft since we were waiting for the BFD specifications to get into the RFC editor queue. --Tom > Hi, > > As best I can tell, there was a flurry of activity on -02 last > August (changes to -02 were discussed...) Since then nothing and, > per ID tracker -02 draft has expired. What is status? > > Thanks, > Steve > > Stephen Nadas Ericsson IPI > stephen.nadas@ericsson.com 920 Main Campus Dr. > Voice: +1-919-472-9935 Fax: x/9999 Suite 500 > Mobile: +1-919-522-0991 ECN: 802 29935 Raleigh, NC 27606 From rtg-bfd-bounces@ietf.org Fri Apr 21 02:52:33 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FWpVC-0008Ee-9J; Fri, 21 Apr 2006 02:52:26 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FWpVB-0008DW-53 for rtg-bfd@ietf.org; Fri, 21 Apr 2006 02:52:25 -0400 Received: from web53807.mail.yahoo.com ([206.190.36.202]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FWpON-0003m7-10 for rtg-bfd@ietf.org; Fri, 21 Apr 2006 02:45:27 -0400 Received: (qmail 6639 invoked by uid 60001); 21 Apr 2006 06:45:22 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=nv1u3VaAx30L270BD6zTm18RCvu7lx1lq9WQ6rTbmRfPxEX+lI3SzwJl5Rl4/MYJ1+6FQ5m2p5AGSfX+ALql8yj2cNG2+VbC77j303DukJiTypIZsvFBGibEJ2MiZ2xXKt7gQ7GB+NRQZrxzZljv0I6jiem2gf2Yng9n+vbBVlM= ; Message-ID: <20060421064522.6637.qmail@web53807.mail.yahoo.com> Received: from [59.144.31.37] by web53807.mail.yahoo.com via HTTP; Fri, 21 Apr 2006 07:45:22 BST Date: Fri, 21 Apr 2006 07:45:22 +0100 (BST) From: "Dr. Soumitra Sinha Roy" To: rtg-bfd@ietf.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: e1e48a527f609d1be2bc8d8a70eb76cb Subject: Regarding Connectivity detection in Demand Mode X-BeenThere: rtg-bfd@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "RTG Area: Bidirectional Forwarding Detection DT" List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: rtg-bfd-bounces@ietf.org Sir, In draft-ietf-bfd-base-04.txt, Sec 6.5 Page 19 Paragraph 2 says - Demand mode requires that some other mechanism is used to imply continuing connectivity between the two systems. The mechanism used does not have to be the same in both directions and is outside the scope of this specification.One posible mechanism is the receipt of traffic from the remote system; another is the use of the Echo function. As the draft says the mechanism used does not have to be the same in both directions, Does this mean that one system can check connectivity using Echo function and other system checking the connectivity using Poll sequence? For example, In Both RT1 nad RT2 Demand mode bit = 1, Required Min Echo Rx. interval is non- zero. At Time t1, RT1 is checking it's connectivity with RT2 using Echo packets. RT2 forwards the ECHo packets back to RT1. At time t2, RT2 is checking it's connectivity with RT1 by sending a BFD control packet with Poll bit = 1. So, RT1 replies to RT2 with BFD control Packet with F = 1. Is this scenario possible? Can someone explain the mechanism of receipt of Traffic from the remote system? With Regards, Murti ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com