Subject: Re: [armd] FW: New Version Notification for draft-mackcrane-armd-ipv6-nd-scaling-00

From: Ben Mack-Crane <[email-masked]>
Date: Tue, 19 Oct 2010 06:14:33 +0800

Hi Simha,

I've provided responses in-line below.

Regards,

Ben

-----Original Message-----

From: [email-masked] [mailto:[email-masked]] On Behalf Of

Narasimhan Venkataramaiah

Sent: Thursday, October 14, 2010 1:15 PM

To: Linda Dunbar; [email-masked]

Cc: 'Hares Susan'

Subject: Re: [armd] FW: New Version Notification for

draft-mackcrane-armd-ipv6-nd-scaling-00

Router advertisement is for hosts to do auto configuration. In a core LAN

connecting routers - why will there be a significant load on the core side?

[Ben] There would not, as noted in the draft -- if Router Advertisements are

not needed in the core case then they need not be used.

The summary section talks about some issues in the core LAN connecting a

large number of routers (This is referring to a large L3 network with many

subnets. Right?) What are those issues?

[Ben] The summary is pointing out some of the protocols do not seem to 

be designed to scale for the core case, but that these protocols also do 

not seem to be required in this case.  So there may be no practical 

concerns.

Thanks

Simha

-----Original Message-----

From: [email-masked] [mailto:[email-masked]] On Behalf Of

Linda Dunbar

Sent: Thursday, October 14, 2010 8:27 AM

To: [email-masked]

Cc: 'Hares Susan'

Subject: [armd] FW: New Version Notification for

draft-mackcrane-armd-ipv6-nd-scaling-00

Here is a draft on IPv6 scaling analysis for large data center. 

A new version of I-D, draft-mackcrane-armd-ipv6-nd-scaling-00.txt has been

successfully submitted by Linda Dunbar and posted to the IETF repository.

Filename:   draft-mackcrane-armd-ipv6-nd-scaling

Revision:   00

Title:            IPv6 Neighbor Discovery Scalability for Large Data Centers

Creation_date:    2010-10-12

WG ID:            Independent Submission

Number_of_pages: 9

Abstract:

Server virtualization allows one physical server to support many virtual

machines (VMs) so that multiple hosts (20, 30, or hundreds) can be running

from one physical platform. As virtual machines are introduced into a Data

Center, the number of hosts within the data center can grow dramatically,

which can have tremendous impact on the network and hosts.

This document provides an analysis of the scalability of IPv6 Neighbor

Discovery (RFC 4861) in data centers with a large number of virtual

machines.

 

The IETF Secretariat.

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