Re: Re: Replacing web content.

> Olaf van der Spek wrote:
>
>> > TCP/IP has a slow start issues.  Each time you click a link you can
>> > see this.
>>
>> You can?
>> What about persistent HTTP connections?
>
> Indeed.  Almost all modern web browsers support keep-alive/persistent
> connections, which eliminates the TCP connection setup/teardown penalty
> for fetching multiple URLs from the same host, providing the server
> supports it too (and what production httpd's don't...)

Indeed. Don't forget page generation times either. Times of about 100 ms 
aren't uncommon unfortunately.

>
>> > That is why we have ARP cache/proxy, DNS cache, cached
>>
>> Eh, ARP and DNS are UDP only.
>
> To be pedantic, ARP is at level 2 (data link) and UDP is at level 4

I guess we were both wrong. ARP is level 3 (network layer).

> (transport) so they're not really comparable.  And DNS can use TCP for
> large replies or zone transfers.



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