Vale port naming

[Brooks Davis]

On Mon, Apr 04, 2016 at 10:37:48PM +0000, Brooks Davis wrote:
> On Mon, Apr 04, 2016 at 11:29:31AM +0000, Matt Churchyard via freebsd-net wrote:
> > From the little information I can find on the net it seems that valeX:Y is the format for a port on a vale switch.
> > Some examples use vale0:1, others use a letter such as valeA:0. The only details I can find is a vague reference to a 15/16? character limit, although I don't know whether that applies to just the first part of the whole thing.
> > 
> > Can anyone clarify the valid format for a vale switch/port?
> > Is there any length or character restriction on X & Y?
> 
> According to the vale.4 manpage:
> 
>         vale ports are named vale[bdg:][port] where vale is the prefix
>         indicating a VALE switch rather than a standard interface, bdg
>         indicates a specific switch (the colon is a separator), and port
>         indicates a port within the switch.  Bridge and port names are
>         arbitrary strings, the only constraint being that the full name
>         must fit within 16 characters.
> 
> The manpage is confusing in that the name must be 15 characters plus the
> NUL character.  Given the other limits, it looks like bdg can be up to 8
> characters in practice.

Having hit send, I've noticed I'm wrong here. :)  In fact, you have 10
characters to split betwen bdg and port.

-- Brooks
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