[comp.dcom.lans] TCP/IP max. datagram size

hartvig@diku.UUCP (Hartvig Ekner) (10/25/87)

I have been looking through the MIL-STD's for TCP and
IP (1770 and 1771 I think), and nowhere is there
an indication of how large IP datagrams you can
expect coming over an 802.3 Ethernet. Does anybody
know if there is a limit (other than the 1500
byte limit on ethernet packets)? The document
says something about that you MUST be able to
handle 576 byte datagrams without fragmenting
them, but that's all it says...

Similarly, is there a limit on TCP 'datagrams'
(I can't remember the correct name), or must a
TCP/IP implementation be able to handle virtually
any size?

Thanks,

Hartvig Ekner               ...mcvax!diku!hartvig
University Of Copenhagen