[c-nsp] Cisco IOS support for blksize / rfc 2348

[Saku Ytti]

On (2007-11-05 15:52 -0700), Clinton Work wrote:

> I'm trying to determine when blksize / rfc 2348 support was added to 
> several Cisco IOS releases.  It might have been added with defect 
> CSCds46280, but the bug report doesn't provide any details.   Support 
> for tftp RFC2348 is required to transfer images over 32MB. 

tftp seems to be in some bizarro world, as actually typical way to
implement >32MB is just to roll over block#, which isn't documented
in any standard that I know off, and that's why correctly working
tftp servers, such as atftpd won't work with larger than 32MB files
in those servers.
Cisco also does that, not sure if IOS does though. It's especially
evil that some cisco product do not support any other file transfer
protocol and still have >32MB images and also do not implement any
standard compliant way to actually transfer >32MB images to them.

-- 
  ++ytti