Subject: Re: [armd] WG Last Call: draft-ietf-armd-problem-statement-02.txt

From: Tal Mizrahi <[email-masked]>
Date: Sun, 1 Apr 2012 22:01:39 +0300

Hi,

Some comments are listed below.
[Better late than never :]

The document is well written, and IMO it is ready to proceed to the IESG processing.

In section 2:
Although these are very basic terms, I suggest to add the acronyms: ARP, ND, VLAN, ToR, EoR.

Section 3 says "Today, it is not uncommon to support 10s of VMs per physical server."
, while section 7.3 says "where a single physical machine now hosts ten (or more) VMs".
==>The number of VMs per physical server should be consistent in the two sections.

Section 4.4.4
The first paragraph sounds like it describes a solution for address scaling, and not a problem. It would be best to rephrase.

Section 4.5.2:
"Virtualization also can place additional requirements on the Aggregation switches in terms of address resolution table size"
This assumes the scenario from 4.4.2 "L3 to Aggregation Switches" - it should be clarified, or rephrased.

In section 7:
The following sentence does not seem relevant any more: "It is a future activity to determine which of these areas can or will be addressed by ARMD or some other IETF WG."

Typos: 
"A switch used to aggregate network network connectivity from multiple racks." - the word network appears twice.
"run applications that are are confined" - the word are appears twice.

Regards,
Tal Mizrahi.

-----Original Message-----
From: [email-masked] [mailto:[email-masked]] On Behalf Of Benson Schliesser
Sent: Tuesday, March 20, 2012 7:34 AM
To: [email-masked]
Subject: Re: [armd] WG Last Call: draft-ietf-armd-problem-statement-02.txt

This is just a reminder: we are in WG LC for draft-ietf-armd-problem-statement-02 until 26-Mar-2012. Please review and post comments of support, non-support, etc. Silence will be interpreted as consensus. But a discussion would be even better.

Cheers,
-Benson

On Mar 12, 2012, at 3:34 PM, Benson Schliesser wrote:

> The chairs would like to begin a 2 week Working Group Last Call on the ARMD Problem Statement document draft-ietf-armd-problem-statement-02. (See the announcement message quoted below for reference.)  Please read this latest version of the draft, and comment on the mailing list.  This WG LC will close on 26-March-2012.
> 
> Cheers,
> -Benson and Linda
> 
> 
> On Mar 12, 2012, at 3:15 PM, [email-masked] wrote:
> 
>> 
>> A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Address Resolution for Massive numbers of hosts in the Data center Working Group of the IETF.
>> 
>> 	Title           : Problem Statement for ARMD
>> 	Author(s)       : Thomas Narten
>>                         Manish Karir
>>                         Ian Foo
>> 	Filename        : draft-ietf-armd-problem-statement-02.txt
>> 	Pages           : 16
>> 	Date            : 2012-03-12
>> 
>>  This document examines address resolution issues related to the  
>> massive scaling of data centers.  Our initial scope is relatively  
>> narrow.  Specifically, it focuses on address resolution (ARP and ND)  
>> within the data center.
>> 
>> 
>> A URL for this Internet-Draft is:
>> http://www.ietf.org/internet-drafts/draft-ietf-armd-problem-statement
>> -02.txt
>> 
>> Internet-Drafts are also available by anonymous FTP at:
>> ftp://ftp.ietf.org/internet-drafts/
>> 
>> This Internet-Draft can be retrieved at:
>> ftp://ftp.ietf.org/internet-drafts/draft-ietf-armd-problem-statement-
>> 02.txt
>> 
>> _______________________________________________
>> armd mailing list
>> [email-masked]
>> https://www.ietf.org/mailman/listinfo/armd
> 

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