Nasir,

I will read this paper later.

For multi-path SA, a multi-homed device or device with multiple interfaces can 
take advantage of it.  Maybe multi-path TCP could provide some other clue.

Thanks,

Victor

From: Nasir Bhutta [mailto:[email protected]]
Sent: Thursday, April 05, 2012 11:01 AM
To: dharmanandana pothulam
Cc: Xiangyang zhang; [email protected]
Subject: Re: [IPsec] [IPSec]: Multiple path IP Security for 
draft-zhang-ipsecme-multi-path-ipsec-00

Hi All,
What are good applications and/or importance in Industry for Multi-path IPsec 
and Multilayer-IPsec?

We have also modified the previous ML-IPsec to support for dynamic break down 
of IP datagram into different Zones. A paper of dynamic ML-IPsec is attached 
with this email. All critical questions and comments are welcome.

With thanks.

Kind Regards,
Nasir

On Thu, Apr 5, 2012 at 5:18 PM, Dharmanandana Reddy Pothula 
<[email protected]<mailto:[email protected]>> 
wrote:
Hi Zhang,

I am confused about the statement in your draft  "Unlike SA bundle, one IP 
packet is still protected by one single SA instead of nested SAs". Does single 
SA means cluster SA? Or sub-SA? If it is cluster SA, what exactly it meant from 
SAD point of view?

For example, Let us consider the following header, the host is tunneling a 
packet to the gateway using ESP but is authenticating to the end host B. How do 
we address this using your proposed solution SA clustering? If  multiple 
packets goes through two different sub-SA's. here my understanding is two 
different sub-SA's means two separate SA's are ESP SA and AH SA. Does this mean 
packet go through either ESP SA or AH SA? Please correct me , if I 
misunderstood.
[Bb726946.f4_14(en-us,TechNet.10).gif]<http://technet.microsoft.com/en-us/library/Bb726946.f4_14_big(l=en-us).gif>

Second point,  About SA cluster feature support, Does both parties need to 
exchange vendor ID to express support and use of SA cluster feature? It would 
be better to address this in draft including proposed vendor id values, if 
vendor id used in IKE negotiation.

Third point, about name of the draft, I feel multiple path sounds like multiple 
routes, it does not implies multiple SA's.

Regards,
Dharmanandana Reddy Pothula.




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