Question: In views, is it possible to configure a cck taxonomy field so that a user search for higher level taxonomy terms also matches its parents? Say that I have this taxonomy called Places:

```
Asia
    China
        Shanghai
        Beijing
    Japan
        Tokyo
        Nagoya
    Indonesia
        Bandung
        Banjar
Europe
    France
        Paris
        Lyon
    Germany
        Berlin
        Hamburg
    UK
        London
        Birmingham
North America
    Cananda
        Toronto
        Ottawa
    USA
        New York
        Texas

```

I want users to be able to select, say, Europe and find all content matching France, Germany or UK *and* their children nodes.

Answer: 
This isn't really a direct answer ... somewhat oblique to the question. For TCP/IP, even if you determine what the maximum size is on your system, it would probably be best to implement the code to not rely on that. With stream-oriented sockets, the excess data is not lost. So you can call the receive function again to retrieve the remaining data. That is not true with message-oriented (UDP) connections, though.
I think that max is `65535` bytes. It does not depend upon MTU since it's handled by protocol stack by itself.. so basically you have a good abstraction prom the effective packets that are sent on network.

The choice of 2^16 should be so because it's the max size of the TCP window (usually it's not 64kb anyway, but smaller): so it's the maximum buffer the protocol allows for a TCP connection.