Re: [Softwires] Comments on draft-sakura-6rd-datacenter-01

Shishio Tsuchiya <shtsuchi@cisco.com> Sat, 23 July 2011 02:33 UTC

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Date: Fri, 22 Jul 2011 22:33:05 -0400
From: Shishio Tsuchiya <shtsuchi@cisco.com>
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Cc: softwires@ietf.org, draft-sakura-6rd-datacenter@tools.ietf.org
Subject: Re: [Softwires] Comments on draft-sakura-6rd-datacenter-01
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Hui
Thanks for your comment.

Hui Deng wrote:
> Hello authors,
> 
> Just wondering how you handle those issues which were mentioned in the draft-jjmb-v6ops-comcast-ipv6-experiences-01
> for example,
> 1) have you supported Ipv4 any cast?

I'm not sure what is issue in comcast case yet.
But Sakura is not using IPv4 anycast for 6rd BR now.

> 2) implemented DHCPv4 options?
We mentioned about this.
http://tools.ietf.org/html/draft-sakura-6rd-datacenter-01#section-4.2
The server-based 6rd does not needs automatic configuration because the server usually configure IPv4 address statically.

> 3) the number of implementations?
Many OS already supported 6rd feature.
http://tools.ietf.org/html/draft-sakura-6rd-datacenter-01#section-3


> 4) Data center normally has high end routers and switches, would that possible to deploy 6rd CE without any influences of performance? you may deployed it on the server?

In Sakura's case,switches has high performance for IPv4 switching,but IPv6 switching poor or not support.
To provide IPv6 internet without any influence of existing service,Sakura is providing information of server-based 6rd to customers.

Regards,
-Shishio


> 
> Best regards,
> 
> -Hui
>