Re: [dhcwg] Query Regarding DHCP Lease time, Rebind Time and Renewal Time.

Bud Millwood <budmillwood@gmail.com> Fri, 22 October 2010 09:54 UTC

Return-Path: <budmillwood@gmail.com>
X-Original-To: dhcwg@core3.amsl.com
Delivered-To: dhcwg@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id EE8033A6876 for <dhcwg@core3.amsl.com>; Fri, 22 Oct 2010 02:54:10 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.598
X-Spam-Level:
X-Spam-Status: No, score=-2.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001]
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 ceyDytwCu8jc for <dhcwg@core3.amsl.com>; Fri, 22 Oct 2010 02:54:09 -0700 (PDT)
Received: from mail-gx0-f172.google.com (mail-gx0-f172.google.com [209.85.161.172]) by core3.amsl.com (Postfix) with ESMTP id 553023A681D for <dhcwg@ietf.org>; Fri, 22 Oct 2010 02:54:09 -0700 (PDT)
Received: by gxk26 with SMTP id 26so494816gxk.31 for <dhcwg@ietf.org>; Fri, 22 Oct 2010 02:55:46 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=FAcb/Ap/8aMKaNE/J1vw/1ryb97UKM45APoTs6qnwlI=; b=S7l5oG075vjiHKQjOZGU13DU7cjbaakBcLmPMzCPbWzI/YcKvKkCdEN4M1f2sPsPY/ Tbgsbrw0ne39tvIQTMGxfdRgD8Wv7nCyFoleQ0+L0EGyPVA5IUVyYNkGvhMROT3t+GUD ibHh7SzzRbhgurck8WYKFFzMJRH6dkkQEzJXA=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=JFFZADtYjgmHIzp3hSlkPq7LfGZE6eHcWaIog2j5rIz6+u1kN4Jpxs4cSA4j/SNmHM yf7LHMqg1VrgrUbF8ajrmRLkKsgsytreQY6Ap44jbZQEC1cF0gTCrfoJWpVheIot1fQ4 xyWg0NvL4hmc6b5UGNyNLdF+rfdIu8sPPWbow=
MIME-Version: 1.0
Received: by 10.150.95.3 with SMTP id s3mr6018257ybb.285.1287741346503; Fri, 22 Oct 2010 02:55:46 -0700 (PDT)
Received: by 10.150.143.19 with HTTP; Fri, 22 Oct 2010 02:55:46 -0700 (PDT)
In-Reply-To: <AANLkTi=Kq5k5NmtLT17OEXk87T+=FA9X8jr_Hc=u5kX-@mail.gmail.com>
References: <AANLkTi=Kq5k5NmtLT17OEXk87T+=FA9X8jr_Hc=u5kX-@mail.gmail.com>
Date: Fri, 22 Oct 2010 11:55:46 +0200
Message-ID: <AANLkTi=4nuZdX2DTziF4PwQLYnu_x9qSKVqnoyJdoGdX@mail.gmail.com>
From: Bud Millwood <budmillwood@gmail.com>
To: Ramesh Ganapathi <rameshganapathi@gmail.com>
Content-Type: multipart/alternative; boundary="000e0cd6ad28855dff049331a5a1"
Cc: dhcwg@ietf.org
Subject: Re: [dhcwg] Query Regarding DHCP Lease time, Rebind Time and Renewal Time.
X-BeenThere: dhcwg@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: <dhcwg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dhcwg>
List-Post: <mailto:dhcwg@ietf.org>
List-Help: <mailto:dhcwg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dhcwg>, <mailto:dhcwg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 22 Oct 2010 09:54:11 -0000

If the lease length is 0, then nothing about the offer is valid at all, IMO,
and it should be discarded.

- Bud

On Fri, Oct 22, 2010 at 8:20 AM, Ramesh Ganapathi <rameshganapathi@gmail.com
> wrote:

> Hi All,
>
> Need clarification regarding the following:
>
>
>
> 1)     What should be the expected behavior if the DHCP client receiver a
> OFFER with lease time of 0(zero).?
>
> 2)    If the DHCP Client receives DHCP OFFER with lease timer of 2 seconds
> the T1(Rebind Timer) and T2 (Renew Timer) timer value will be round of to 1
> second.
>
> T1 = (lease time * 0.5) = 2*0.5 = 1
>
> T2 = (lease time * 0.875) = 2 * 0.875 = 1.75 (round of to 1)
>
> What should be expected behavior if the T1 and T2 timer value are same?
>
>
>
> Thank you in Advance.
>
>
>
> Warm Regards,
>
> Ramesh.G
>
> _______________________________________________
> dhcwg mailing list
> dhcwg@ietf.org
> https://www.ietf.org/mailman/listinfo/dhcwg
>
>