Re: [Lsr] https://tools.ietf.org/html/draft-wang-lsr-prefix-unreachable-annoucement-05

Peter Psenak <ppsenak@cisco.com> Tue, 09 March 2021 08:55 UTC

Return-Path: <ppsenak@cisco.com>
X-Original-To: lsr@ietfa.amsl.com
Delivered-To: lsr@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E28943A17D9; Tue, 9 Mar 2021 00:55:17 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.602
X-Spam-Level:
X-Spam-Status: No, score=-9.602 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fqdTKF-bSPxH; Tue, 9 Mar 2021 00:55:14 -0800 (PST)
Received: from aer-iport-1.cisco.com (aer-iport-1.cisco.com [173.38.203.51]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 407AA3A17D4; Tue, 9 Mar 2021 00:55:13 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=1290; q=dns/txt; s=iport; t=1615280113; x=1616489713; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to:content-transfer-encoding; bh=BmVNEu8BxHbJ2nncT6naE8Byno5Nuqv1BhU1N/fO/w8=; b=hlswQCX+uu5uCi8KhTb0vwcNctiZryAp7awvTK7jxffudmkiwNWsd5gK h+A8czLU5Yu9EEABkqGGddciljOc9mvPRKpoZV+6KluadPqIL/3IdeQdH 65Q20PTZOF9VsbR5xaByEEoKnID9q7ePjmgbnt4KJhZnzRrjVDRz0rgow w=;
X-IronPort-AV: E=Sophos;i="5.81,234,1610409600"; d="scan'208";a="34033632"
Received: from aer-iport-nat.cisco.com (HELO aer-core-4.cisco.com) ([173.38.203.22]) by aer-iport-1.cisco.com with ESMTP/TLS/DHE-RSA-SEED-SHA; 09 Mar 2021 08:55:11 +0000
Received: from [10.60.140.52] (ams-ppsenak-nitro3.cisco.com [10.60.140.52]) by aer-core-4.cisco.com (8.15.2/8.15.2) with ESMTP id 1298tA2g029550; Tue, 9 Mar 2021 08:55:10 GMT
To: Tony Li <tony.li@tony.li>, Gyan Mishra <hayabusagsm@gmail.com>
Cc: lsr <lsr@ietf.org>, Aijun Wang <wangaj3@chinatelecom.cn>, "Acee Lindem (acee)" <acee@cisco.com>, draft-wang-lsr-prefix-unreachable-annoucement <draft-wang-lsr-prefix-unreachable-annoucement@ietf.org>
References: <CABNhwV2=HTRYG5PTgiGYanm8LeT1HYcrPKQ4R4TQHZ-GO9ecJQ@mail.gmail.com> <AB1FD8DF-93B8-4342-AB4E-F2E7A59BF4F2@tony.li>
From: Peter Psenak <ppsenak@cisco.com>
Message-ID: <a60464e2-0f6d-9936-0cf7-40fea9db8b62@cisco.com>
Date: Tue, 9 Mar 2021 09:55:10 +0100
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.9.1
MIME-Version: 1.0
In-Reply-To: <AB1FD8DF-93B8-4342-AB4E-F2E7A59BF4F2@tony.li>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 8bit
X-Outbound-SMTP-Client: 10.60.140.52, ams-ppsenak-nitro3.cisco.com
X-Outbound-Node: aer-core-4.cisco.com
Archived-At: <https://mailarchive.ietf.org/arch/msg/lsr/1jW40iC5UwuYfhi-GMwSU86x7Og>
Subject: Re: [Lsr] https://tools.ietf.org/html/draft-wang-lsr-prefix-unreachable-annoucement-05
X-BeenThere: lsr@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Link State Routing Working Group <lsr.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/lsr>, <mailto:lsr-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/lsr/>
List-Post: <mailto:lsr@ietf.org>
List-Help: <mailto:lsr-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/lsr>, <mailto:lsr-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 09 Mar 2021 08:55:18 -0000

Tony,

On 09/03/2021 01:03, Tony Li wrote:
> 
> Gyan,
> 
> If I understand the purpose of this draft, the point is to punch a hole 
> in a summary so that traffic is redirected via an alternate, working path.
> 
> Rather than punch a hole, why not rely on existing technology? Have the 
> valid path advertise the more specific. This will attract the traffic.

that would defeat the purpose of the summarization.

thanks,
Peter

> 
> Tony
> 
> 
>> On Mar 8, 2021, at 3:57 PM, Gyan Mishra <hayabusagsm@gmail.com 
>> <mailto:hayabusagsm@gmail.com>> wrote:
>>
>>
>> Acee.
>>
>> Please ask the two questions you raised about the PUA draft so we can 
>> address your concerns.
>>
>> If anyone else has any other outstanding questions or concerns we 
>> would like to address as well and resolve.
>>
>> Once all questions and  concerns are satisfied we would like to ask 
>> for WG adoption.
>>
>> Kind Regards
>>
>> Gyan
>> -- 
>>
>> <http://www.verizon.com/>
>>
>> *Gyan Mishra*
>> /Network Solutions A//rchitect /
>> /M 301 502-1347
>> 13101 Columbia Pike
>> /Silver Spring, MD
>>
>> _______________________________________________
>> Lsr mailing list
>> Lsr@ietf.org <mailto:Lsr@ietf.org>
>> https://www.ietf.org/mailman/listinfo/lsr
>