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New Linux Token-Ring Patch



This patch does two things - it fixes a problem where tcpdump wasn't
able to decode outbound frames, and it lifts the 2000 byte MTU
limitation.  The MTU is now limited by available shared-RAM size, up
to 17,848 bytes for 64K shared-RAM size. 

This patch applies to 2.1.103 Linux.  I'm very interested in seeing
this tested on a source-routed network as the tcpdump part of the
patch hits that part of the code and I don't have a source-routed
network to test on. 

BTW, we're moving into another stable series of kernels and I'm
interested in hearing about any gripes with the 2.1.x ibmtr driver or
Linux token-ring in general.  Linux token-ring has seen a _lot_ of
changes since the 2.0.x kernels and I want to make sure the token-ring
code has a clean bill of health. 

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