Messages in this thread |  | | From | Chris Fearnley <> | Subject | 2.0.21: TCP hangs solved by disabling Path MTU Discovery | Date | Tue, 24 Sep 1996 16:45:42 -0400 (EDT) |
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Greetings,
I recently reported that HTTP connections were hanging without sending any data under 2.0.21. Alan Cox's suggestion of building with Path MTU Discovery disabled has resolved that problem. Thanks Alan, everything seems to be working fine now. I'll know for sure tonight when cron runs the tape backup (which also failed under the old kernel).
The Configure.help listing for Path MTU Discovery suggests it's only useful for broken PC clients. But many non-local machines including my PC running 2.0.20 failed to connect to this machine until I rebuilt it as described. The machine is on a TCP/IP network connected via a Cisco on a Frame Relay 56k link. Since this is standard technology I'm uncertain why we ran into the problem. Should Configure.help broaden it's description of the Path MTU Discovery option or is there still a bug hiding somewhere?
-- Christopher J. Fearnley | Linux/Internet Consulting cjf@netaxs.com, cjf@onit.net | UNIX SIG Leader at PACS http://www.netaxs.com/~cjf | (Philadelphia Area Computer Society) ftp://ftp.netaxs.com/people/cjf | Design Science Revolutionary "Dare to be Naive" -- Bucky Fuller | Explorer in Universe
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