[openib-general] Fwd: SDP

[Tom Duffy]

Nitin,

I found this email stuck in the back of my inbox.  I am sorry I  
haven't been able to get back to you.  Perhaps somebody on the list  
can better answer your questions.

Begin forwarded message:

> From: Nitin Hande <Nitin.Hande at Sun.COM>
> Date: November 2, 2005 4:11:01 PM PST
> To: Tom Duffy <Thomas.Duffy.99 at alumni.brown.edu>
> Subject: Re: SDP
> User-Agent: Mozilla Thunderbird 1.0.2 (X11/20050512)
>
> Hi Tom
>
>
> Tom Duffy wrote:
>> On Oct 4, 2005, at 4:38 PM, Nitin Hande wrote:
>>> Tom
>>>
>>> I have a question. The current SDP implementation on OpenIB I   
>>> believe now creates a socket of AF_INET_SDP type ?.
> While you have choosen AF_INET_SDP, what does this family imply.?  
> How is it connected to AF_INET family ? (I can tell my reasoning:  
> While doing ARP, AF_INET_SDP relies on IPoIB to find the peer MAC  
> address. While IPoIB is a AF_INET family, there is some co-relation  
> between AF_INET_SDP and AF_INET family. MAC address resolved  
> through AF_INET is accepted in AF_INET_SDP. This will not be  
> acceptable, say for AF_IPX family, if there was any reason to do it  
> like that). What I am trying to find out is what is that relation ?
>
> My second question, is rather than defining AF_INET_SDP, have you  
> thought if we can open a SDP connection with
> socket(AF_INET, SOCK_STREAM, IPPROTO_SDP) which perhaps suits more  
> than AF_INET_SDP ? (It is only the transport protocol that is  
> different, but the address actually belong to AF_INET family).
>
> Your comments ?
>
> Nitin