Re: Port numbers and IPv6

[jnc at mercury.lcs.mit.edu (Noel Chiappa)]

    > From: Ned Freed <ned.freed at mrochek.com>

Let me make sure I understand you here:

    > IMAP4 has the characteristic that you often have a huge number of
    > incoming connections, only a few of which are active at any given time.
    > Designing servers to accomodate huge numbers of connections is a bit
    > tricky, but workable: ...
    > The 65536 limit, OTOH, has to be dealt with by using multiple server IP
    > addresses, which in turn usually require multiple interfaces ...
    > ... that doesn't mean nobody is hitting the 65536 limit imposed by
    > source port numbers. They are, it causes problems

You're saying that there are servers which have close to (or more) than 65K
connections to a *single client IP address* (i.e. it may be a NAT, with a
number of hosts behind it)? (If a server is talking to a number of different
client IP addresses, it can have up to 65K connections to *each*.)

	Noel

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