[tcp] Update maximum window size to 2MB

The current maximum window size of 256kB was calculated based on rough
link bandwidth and RTT measurements taken in 2012, and is too small to
avoid filling the TCP window on some modern links.

Update the list of typical link bandwidth and RTT figures to reflect
the modern world, and increase the maximum window size accordingly.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
1 file changed
tree: c820fc86f0f0e19d42e86151fd33159a7e3f9294
  1. .github/
  2. contrib/
  3. src/
  4. COPYING
  5. COPYING.GPLv2
  6. COPYING.UBDL
  7. README