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RE: Capability Negotiation for OCP

2003-04-21 06:38:36
Oskar,
 
We can not decide on BEEP now.
We have to eliminate other candidates like SOAP first.
Basically, u r right, this is only a Pause.
 
 
Abbie
 

-----Original Message-----
From: Oskar Batuner [mailto:batuner(_at_)attbi(_dot_)com] 
Sent: Monday, April 21, 2003 9:35 AM
To: Barbir, Abbie [CAR:1A00:EXCH]; Alex Rousskov; 
ietf-openproxy(_at_)imc(_dot_)org
Subject: RE: Capability Negotiation for OCP


Did we have made a decision on BEEP? The BEEP discussion had no 
conclusive end, in fact for me it looks more like a pause. There were 
pros and cons discussed, more pros than cons, but no conclusion. 
 
If we are going to adopt BEEP many things will be shaped by that. 
 
Alex, what do you think?
 
Oskar

-----Original Message-----
From: owner-ietf-openproxy(_at_)mail(_dot_)imc(_dot_)org
[mailto:owner-ietf-openproxy(_at_)mail(_dot_)imc(_dot_)org]On Behalf Of Abbie 
Barbir
Sent: Monday, April 21, 2003 9:06 AM
To: Alex Rousskov; ietf-openproxy(_at_)imc(_dot_)org
Subject: RE: Capability Negotiation for OCP



hi, 
how about Authentication/Authorization/encrytption. 

how/when these will be negotiated/supported etc. 
Are we talking about another encapsulation (like HTTPS or SASL) here or
what? 


Abbie 


-----Original Message----- 
From: Alex Rousskov [mailto:rousskov(_at_)measurement-factory(_dot_)com
<mailto:rousskov(_at_)measurement-factory(_dot_)com> ] 
Sent: Thursday, April 17, 2003 2:58 PM 
To: ietf-openproxy(_at_)imc(_dot_)org 
Subject: Re: Capability Negotiation for OCP 




On Thu, 17 Apr 2003, Reinaldo Penno wrote: 

These are my ideas on capability negotiation. They are a 
mix of SDP's 
offer/answer, BGP and PPP. 

Sounds like a great start to me. I am sure we will run into 
arguments once the wording becomes more specific. 

One high-level thing to consider now is scope (level) 
definition: Do we want to have a fixed number of levels 
associated with OCP entities like connection and transaction? 
Or do we want to allow unlimited nesting? For example, is it 
possible that something needs to be re-negotiated in the 
middle of a transaction? 

Another issue: are negotiations always limited in scope to a 
single transport connection? Are we worried that two 
connections to the same IP may not end up at the same callout 
server? In other words, if an OPES processor wants to open 10 
connections to a callout server, does it need to negotiate 
each from scratch OR can it refer to earlier 
("cached") negotiations? 

Semantically, does <offer> describe sender characteristics "I 
can use Foo" or can it describe sender desires (recipient 
characteristics) "Please use Foo" as well? For example, how 
can a callout server change OPES processor copying state from 
"yes" to "no" in the middle of an OCP connection? Using 
"Processor-uses-copying" property? 

How is the order of negotiations determined -- what if both 
OPES processor and callout server send <offer> messages "at once"? 

Finally, can we define a complete set of parameters that MUST 
be negotiated for OCP Core? 

Let's not spent too much effort on what you call "packet 
format" now. The choice of transport protocol and encoding 
will have a major impact on that, I think. 

Thank you, 

Alex. 


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