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Hello all,
( I apologize if this posts
twice )
Here is my situation. I have 3
buildings linked with 100mbit fiber optics (2 runs that come to the corporate
office). I have 3 RH9 boxes, one at each location. Each box at the remote
locations have 4 NICs, one for the fiber link, one for LAN, one for
the VOIP box and one for the internet connection. The corporate office has
4 NICs also, 1 for each fiber run to the remotes, one for the VOIP box, one for
the LAN (corporate gets its internet from the remotes). I have drawn a diagram
here Http://208.45.203.98/fiber.jpg
All of the gateways are set up
properly, and I can communicate in all directions, and can place calls clearly
when the traffic is low. Now here is my problem. When I dump a big file over the
fiber link, the voice quality goes down considerably. I hit "cancel" on the
file, the quality is back. Here is what I know about the Inter-Tel VOIP box we
use: it uses UDP streams on ports 5000-5018 and 16384 @ 8-18k per side, per
call, over 7 possible channels. Each site has 7 channels, which are rarely all
in use. So, the total bandwidth should be, at max (18k x 2 directions x 7
channels) is 252k I came in on Saturday alone, and was able to kill the
quality with one call, and one 1gb file in transit. I have set HTB up as
follows:
( 1:
)
(1:1)
(1:2)
(1:10) (1:11)(1:12)
Here is my script, it is the same at all 3 sites http://208.45.203.97/script.txt
(I would post it, but it is pretty long). As you can see I have given 80mbit to
the phones (remember, they should only need 252k!), 16mbit to default, and cut
windows file sharing back to 1mbit, but I still have voice issues during file
transfers! I know the filters are catching the traffic (I did "tc -s -d class
show dev eth1" and watched my numbers while calling, and transferring files, and
the incremented properly) Can anybody help me, I have been screwing with this
for days, and I am at my wits end! I am still relatively new to all of this, but
I always bite off more than I can chew :)
Dan White
Senior IT Manager
Bookmasters Inc.
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