public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Rafal Jaworowski <raj@semihalf.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Multicast TFTP problems
Date: Wed, 29 Aug 2007 09:37:36 +0200	[thread overview]
Message-ID: <46D52240.1030209@semihalf.com> (raw)
In-Reply-To: <46CD94A5.8070606@qstreams.com>

Ben Warren wrote:
[...]
> TFTP packets are structured as follows:
> 
> | Eth header (14 bytes) | IP header (20 bytes) | UDP header (8 bytes) | 
> TFTP message | Eth FCS (4 bytes) |
> 
> You can see that the total overhead is 46 bytes. If your network port's 
> maximum MTU size is 1500 bytes (the default), the math works out for a 
> maximum TFTP PDU size of 1454 bytes.
> 
> However... the Ethernet header/trailer is not supposed to be included in 
> the MTU. I suspect we have a terminology problem here. Let me dig a bit 
> further to find out what's going on.
> 

Hi Ben,

Did you manage to look at this any further?

kind regards,
Rafal

  parent reply	other threads:[~2007-08-29  7:37 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-23  9:41 [U-Boot-Users] Multicast TFTP problems Rafal Jaworowski
2007-08-23 14:07 ` Ben Warren
2007-08-23 14:47   ` David Updegraff
2007-08-29  7:37   ` Rafal Jaworowski [this message]
2007-08-29 15:17     ` Ben Warren
2007-09-05 17:06       ` Rafal Jaworowski
2007-09-05 17:30         ` Ben Warren

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=46D52240.1030209@semihalf.com \
    --to=raj@semihalf.com \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox