[c-nsp] ASR-9001 IOS-XR, no image

[Saku Ytti]

On (2012-06-25 12:02 -0400), Aaron wrote:

> open a bug for FTP support.

HTTP please. Even IOS-XR is missing HTTP. FTP is much more complex
protocol, and you'll often run into problems with passive/active and
authentication and whatnot. Either on server side, or device itself.
IMHO HTTP should be the primary protocol you support for download, for
upload sftp/scp.

I don't see why, but if HTTP for some reason is impractical in some
embedded hardware where TFTP is practical we obviously should standardize
new filetransfer protocol for this application

* as cheap to implement, or cheaper than TFTP
* does not negotiate/swap L4 ports
* can transfer high rate at high latency (does not imply TCP, if TCP for
  some reason is show stopper)
* supports large files[0]


[0] TFTP standard does not support roll-over of sequence. Only standard way
to increase filesize is to increase block size, which does not mean
arbitrary filesize. Moreover there are lot of devices which do not support
>512B block. IIRC 6500/7600 WLAN controller was one example of hardware to
which it is impossible to download image, if you want to do it honoring
standards.

-- 
  ++ytti