port question

[Michael Hipp]

Tony Alfrey wrote:
> Vu Pham wrote:
>> On 08/26/2009 09:20 AM, Tony Alfrey wrote:
>>> James McDonald wrote:
>>>> Tony Alfrey wrote:
>>>>> I'm just wondering about the actual packet of bits that is assembled
>>>>> at each layer.
>>>> Sounds like you need to do some research on the OSI (Open Systems
>>>> Interconnect) model.
>>>>
>>>> I use a pneumonic to get the first letters.
>>>>
>>>> All people some times need data processing.
>>>>
>>>> Application
>>>> Presentation
>>>> Session
>>>> Transport
>>>> Network
>>>> Data Link
>>>> Physical
>>>
>>> I had a very good web page that showed exactly this in a very organized
>>> fashion and I lost the page and I have searched for hours for that same
>>> page and now I am very upset.
>>
>> Try this : http://www.tcpipguide.com/free/t_IPDatagramEncapsulation.htm
> 
> 
> Wow!  Pictures!  I love it!

Bah. Humbug.

At one time I knew a bit about the OSI stack. With the shifting winds it became 
obvious we should also learn about the TCP/IP stack. Except it's not. TCP/IP 
isn't a "stack", it's a "pile". Take a wheelbarrow full of bricks and dump it 
in the middle of the yard. There's your picture.

These gross textbookish oversimplifications don't begin to illustrate the, 
ahem, "wide diversity of choices" available in the TCP/IP protocol pile.

Now, back to sleep.

Michael