[brussels-dev] Re: [networking-discuss] dladm show-linkprop enhancements

[Sebastien Roy]

Darren.Reed at Sun.COM wrote:
> Does someone have a pointer to a definition of what DLSDU
> means with respect to headers, etc?

The DLPI spec. does a poor job of defining it in those terms, but here it 
is from the horse's mouth:
http://www.opengroup.org/onlinepubs/9638599/glossary.htm#tagcjh_12_00_04
and
http://www.opengroup.org/onlinepubs/9638599/chap3.htm#tagcjh_04_34

> Everything I've seen mentions "amount of data that can be
> transmitted", which to me opens the possibility of including
> the ethernet header.

You're right that the DLPI spec. does not give a concrete definition for 
the term, leaving room for interpretation.  The Solaris and HPUX 
implementations of DLPI, however, have historically never included the 
data-link header as being part of the DLSDU.

-Seb