Re: flat (was Re: Port numbers in the network layer?

The benefit of decoupling the service name from the destination port - 
in the current Internet - is an increased number of potential concurrent 
(or recently closed) connections.

That's described in the draft I posted earlier. The overhead need apply 
only to the first packet of a TCP connection.

Joe

On 4/28/2013 12:11 PM, Kevin Mason wrote:
> While interesting, what would be the absolute benefit?  The possibilities for confusion by mis-spelling alone would negate most of the gain.  Plus switching variable length, essentially random character socket indicators would be a huge overhead.
>
> ~Kevin
>
>
> On Apr 26, 2013, at 5:01 PM, [email protected] wrote:
>
>> On Fri, 26 Apr 2013, Detlef Bosau wrote:
>>
>>> ... port numbers on the transport layer have worked fine for about 35 years now. (Is this correct?) So there must be extremely compelling reasons to restart this discussion.
>>
>> the past not being the reason, the reason must lie in the future,
>> which is: no ports at all, and names instead of port numbers.
>>
>> If at Bob's time ports were chosen to be encoded in ASCIZ instead
>> of a 16 bit integer, many nice conflations would have been possible,
>> architectural IP oddities cleaned up, connectionless web servers
>> at IP level could have emerged and the bang path would still be
>> with us.
>>
>> Some fun addr+"port" examples for such a one-layer IP network:
>>
>> 10.0.0.1:ping?reply-to=my_asciz_name_instead_of_port_here
>> 10.0.0.2:echo?say=look at me look at me I'm on e2e
>> 127.0.0.1:/index.html
>> 0.0.0.0:arp?who-has=192.168.1.1&tell=eth(27:18:28:18:28:45):me
>> 192.168.1.1:dns?www.google.com&t=mx
>> 192.168.1.1:!my:path!to:the!open:dns?holy.cow
>> 192.168.1.1:eval(dns?www.google.com)!i_feel_lucky?but I forgot the question
>>
>> Port-less is not really new and links back to Bob: it's an instance
>> of a role based architecture, makes the world look flat again,
>> like SDN.
>>
>> best, christian
>>
>> ---
>> Prof. Dr. Christian F. Tschudin
>> Uni Basel | Head of Dept of Mathematics and Computer Science
>