> It's always our fault.
scape·goat
ˈskāpˌɡōt/
/noun/
noun: *scapegoat*; plural noun: *scapegoats*
*1*.
(in the Bible) a goat sent into the wilderness after the Jewish
chief priest had symbolically laid the sins of the people upon it
(Lev. 16).
*
a person who is blamed for the wrongdoings, mistakes, or faults
of others, especially for reasons of expediency.
synonyms: whipping boy;
*
-----Original Message-----
From: George Skorup
Sent: Saturday, June 06, 2015 11:17 PM
To: [email protected]
Subject: Re: [AFMUG] ePMP VoIP QoS
I disagree. This is exactly what Canopy does. DSCP12/AF is sent over
the
HP channel. Look at the default DiffServ table and see for yourself.
Many managed switches are set up exactly the same way, except they have
more queues, and Canopy only has MIR and HP. Well, there's LP CIR, but
lets not get into that. ePMP just has "priority" which I assume means
priority over everything else.
I need a way to correct stupid manufacturer's mistakes (Grandstream
being the worst offender). Lots of their devices ALWAYS send SIP
packets
as DSCP12 and this CANNOT be changed. Or the other one I mentioned, the
GXP phones have one DSCP setting and this changes both SIP and RTP. I'm
disgusted with their stupidity, but unfortunately it has to be
supported
because those devices aren't going away.
It's totally doable and Cambium could add it by default, saving me time
configuring every radio with it. Or just make DiffServ on ePMP
work/configure like Canopy.
I don't care what's wrong or right. I care about shit working right now
and customers not being pissy.
So the burden falls on the network as usual. It's always our fault.
Sometimes I just don't know how I haven't murdered people. If I drank,
it would probably happen. And I'm finding myself agreeing with that one
guy Steve every other day now. Stupidity has no limit.
On 6/6/2015 10:31 PM, Faisal Imtiaz wrote:
>> Yo Cambium, you need to add DSCP 12 (Assured Forwarding) in
addition to
>> DSCP 46 (Expedited Forwarding) to the default VoIP priority
>> configuration.
> That would be a mistake and the wrong thing to do.
>
>> We're finding more devices sending SIP packets as AF and
>> RTP as EF.
> When a device is mis-configured, why should the burden of dealing
with that mis-configurtion as a default fall on another device
>
> There is plenty of flexibility to override the wrong setup of a
device, if that is they way you want to correct it in your radios...
> (Which by all standards would be the wrong way to fix it...but
more power to you).
>
> Two wrongs don't make a right..
>
>
> Regards.
>
>
> Faisal Imtiaz
> Snappy Internet & Telecom
> 7266 SW 48 Street
> Miami, FL 33155
> Tel: 305 663 5518 x 232
>
> Help-desk: (305)663-5518 Option 2 or Email: [email protected]
>
> ----- Original Message -----
>> From: "George Skorup" mailto:[email protected]
>> To: [email protected]
>> Sent: Saturday, June 6, 2015 10:27:05 PM
>> Subject: [AFMUG] ePMP VoIP QoS
>>
>> Yo Cambium, you need to add DSCP 12 (Assured Forwarding) in
addition to
>> DSCP 46 (Expedited Forwarding) to the default VoIP priority
>> configuration. We're finding more devices sending SIP packets as
AF and
>> RTP as EF. AF isn't prioritized and out-of-band signaling
(prompts, etc)
>> are sent as SIP messages so sometimes these are getting dropped,
not to
>> mention registrations, invites, etc. And more devices are stupid
(mostly
>> Grandstream), they only let you set ONE priority value for the entire
>> device. These are coming default as DSCP12/AF. I've tried to get
>> everyone to change this to 46, but they don't remember.
>>
>> Or just apply the whole Canopy DiffServ table. We've never had to
change
>> any of those code points. Turn HP on, it just works.
>>
