[altq 770] Re: Reservation problems with IntServ

[Kenjiro Cho <kjc@csl.sony.co.jp>]

Frode Trydal wrote:
> I'm currently working on a test concerning Integrated Services, and are
> experiencing some problems reserving resources with RSVP. 
> 
> The problem is that I have to reserve twice the bandwidth to get a
> Controlled Load flow with no packet loss. If I reserve the exact amount
> necessary for the streaming flow, I get approximately 50 % loss. As a
> consequence I can only utilize 50 % of the controlled load class.
> 
> I'm using FreeBSD 3.3 and ALTQ 2.2 with RSVP rel4.2a4.
> 
> Do you have any explanation of this phenomenon?

You should run altqstat(1) to monitor how much bandwidth is actually
reserved for the class and how much bandwidth is actually consumed by
the flow.

-Kenjiro