OT: Bezek via netvision

[geoffrey mendelson]

On Feb 25, 2010, at 5:54 PM, Yuval Hager wrote:
>
> According to their support guy (who sound very knowledgable), since  
> I have
> HOT infrastructure, no dialer, and a router, they simply connect  
> their box
> to *my* router, as an additional client. This means that no port  
> blocking,
> nor QoS is possible on their box.

QOS is not all that useful. It only works in the router for outgoing  
packets, and if you are sending lots of big packets upstream, e.g.  
filesharing, then you are going to have problems anyway. Latency is  
the killer of VoIP and it goes up quickly if your send connection is  
saturated.

If you do use P2P throttle your total upload to about 1/30th bytes per  
second of your speed in bits per second, e.g. a 256k connection should  
be no more than 10k bytes per second, and may need to be less, try 7.5  
or 5 if you get too much jitter.

Having no dialer as it were, means you are using MPLS, which some  
people have problems with. If it does cause problems, then it will be  
pretty obvious. People have complianed on this list that HOT only  
guarentees port 80 (HTTP), but I think they have since gotten better  
about it.

If you have a router, are you sure it's not doing tunneling (the  
equivalent of a dialer) already? If it is using DHCP then you really  
are using MPLS and do not have any tunneling, if you are using an  
L2TP, PPTP, PPoE, etc connection you are.

>
> This is only based on what they told me, I will know more tomorrow,  
> and if
> there is something to update, I will.


Update the list either way please. Someone will ask the same question  
again in a few months and at least they can find a response if they  
search the archives.

Thanks, Geoff.

-- 
geoffrey mendelson N3OWJ/4X1GM
Jerusalem Israel geoffreymendelson at gmail.com
New word I coined 12/13/09, "Sub-Wikipedia" adj, describing knowledge  
or understanding, as in he has a sub-wikipedia understanding of the  
situation. i.e possessing less facts or information than can be found  
in the Wikipedia.