Re: [pilc] tcppep

[John Border <border at hns.com>]

A purist would say that even encapsulating the original header alters the end
to end semantics.  Even most non-purists would agree that changing the
original header alters the end to end semantics.  I happen to agree with the
purists.  So,...

I think the question should be does it alter any of the end to end semantics
that matter?  And, the answer to that question depends on context.  In many
environments, I think it doesn't matter.  In our case, we are very up front
with our customers re the fact that we "spoof" TCP connections when carrying
them across the satellite link...

I am unaware of any public documents other than RFC 3135 and marketing
literature from various companies.  But, that doesn't mean it doesn't exist...


John


Lakshmi Priya wrote:
> 
> hi,
> 
> RFC3135 for PEP states that "In a split connection we can encapsulate
> the tcp packets over satlink. These tcp packets are decapsulated at
> the other end of the satlink and transmitted to the end host."
> 
> Will it be necessary to encapsulate the entire packet along with the TCP and
> IP headers to maintain end to end semantics?
> In such a case wouldnt it be an overhead to manupulate the send buffers on
> the satellite tcp as segments(since we retain the headers) rather than
> bytes.
> Any documents suggesting techniques for pep encapsulation?
> 
> thanks,
> lp
> 
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