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xCAT Network Boot Agent
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8dd180f165
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Michael Brown 8dd180f165 [tcp] Reduce path MTU to 1280 bytes 
The path MTU is currently hardcoded to 1460 bytes, which fails to
allow space for TCP options.  Sending a maximum-sized datagram (which
is viable when using HTTP POST) will therefore fail since the Ethernet
MTU will be exceeded.

Reduce the hardcoded path MTU to produce a maximum datagram of 1280
bytes, which is the size required of data link layers by IPv6.  It is
a reasonable assumption that all intermediary data link layers will be
able to convey this packet without fragmentation, even for IPv4.

Note that this reduction has a minimal impact upon download
throughput, since it affects only the transmit data path.

Originally-fixed-by: Suresh Sundriyal <ssundriy@vmware.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
2013-09-04 17:48:58 +01:00
contrib [errdb] Strip platform error code for non-platform-generated errors 2013-04-29 15:36:32 +01:00
src [tcp] Reduce path MTU to 1280 bytes 2013-09-04 17:48:58 +01:00
COPYING Initial revision 2005-05-17 16:44:57 +00:00
COPYRIGHTS [build] Rename gPXE to iPXE 2010-04-19 23:43:39 +01:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README 

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org