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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-06-06 15:06:08 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-06-06 15:06:08 +0000 |
| commit | b47a9d79bb418b3009489b28ebfa0d3d579ceb0a (patch) | |
| tree | 8d3abea4c75673c0780e3b1c8d8d5a623b75f3a5 /nuttx/TODO | |
| parent | a5955f1c84d42d78af27a298f3cdb54e9cd9bff0 (diff) | |
| download | px4-nuttx-b47a9d79bb418b3009489b28ebfa0d3d579ceb0a.tar.gz px4-nuttx-b47a9d79bb418b3009489b28ebfa0d3d579ceb0a.tar.bz2 px4-nuttx-b47a9d79bb418b3009489b28ebfa0d3d579ceb0a.zip | |
Fix minimum MTU... must be at lest 576
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3674 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/TODO')
| -rw-r--r-- | nuttx/TODO | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/nuttx/TODO b/nuttx/TODO index 475263727..7345d5b60 100644 --- a/nuttx/TODO +++ b/nuttx/TODO @@ -1,4 +1,4 @@ -NuttX TODO List (Last updated May 31, 2011) +NuttX TODO List (Last updated June 6, 2011) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ nuttx/ @@ -10,7 +10,7 @@ nuttx/ (1) pthreads (sched/) (1) C++ Support (5) Binary loaders (binfmt/) - (15) Network (net/, drivers/net) + (16) Network (net/, drivers/net) (2) USB (drivers/usbdev, drivers/usbhost) (6) Libraries (lib/) (13) File system/Generic drivers (fs/, drivers/) @@ -333,6 +333,17 @@ o Network (net/, drivers/net) the mechanism for leaving and joining groups is hidden behind a wrapper function so that little of this incompatibilities need be exposed. + Description: Many configurations have the MTU (CONFIG_NET_BUFSIZE) set to very small + numbers, less then the minimum MTU size that must be supported -- 576. + This can cause problems in some networks: CONFIG_NET_BUFSIZE should + be set to at least 576 in all defconfig files. + + The symptoms of using very small MTU sizes can be very strange. With + Ubuntu 9.x and vsFtpd was that the total packet size did *not match* the + packet size in the IP header. This then caused a TCP checksum failure + and the packet was rejected. + Status: Open + Priority: Low... fix defconfig files as necessary. o USB (drivers/usbdev, drivers/usbhost) ^^^^^^^^^^^^^^^^^^^^ |