[cisco-voip] Gatekeeper architecture question

[c3voip]

I might be making this out to be more complicated than it needs to be.  If I
want the CCM to manage the bandwidth via Location-based CAC can't I just
setup my H.323 VC devices as H.323 clients on the CCM and point them at the
CCM?  Do I really need a gatekeeper if I have a working Location-based CAC
single cluster setup already?

-C 

-----Original Message-----
From: Jonathan Charles [mailto:jonvoip at gmail.com] 
Sent: Monday, June 04, 2007 4:32 PM
To: c3voip
Cc: ciscovoip
Subject: Re: [cisco-voip] Gatekeeper architecture question

They should match...

(Basically the Locations-based CAC was based on the GK concept of zones...)

So, if you say, 'hey, Atlanta should be able to support 10 G.729
calls' and you set the Location to 240k, your Atlanta Zone should
match...

However, you prob shouldn't even use locations-based bandwidth because
you are now using the BRQ message from the GK for CAC (CCM sends a BRQ
request to the GK requesting more bandwidth for a new call, GK says
'hell no!' call fails...)

BIG THING TO KEEP IN MIND: By default, CCM doesn't give a crap about
the BRQ denial... it just sends it as a courtesy... if you want AAR to
kick in on a BRQ deny, you need to enable the BRQ service parameter
for CCM.



Jonathan



On 6/4/07, c3voip <c3voip at nc.rr.com> wrote:
> How do the Gatekeeper zones interact with the Locations that are setup in
> the CCM? Or do they?
>
> I am trying to add 7985's and I want either the CCM's or the gatekeeper to
> know about all video calls from the VC units and the 7985's across the WAN
> links.
>
> -C
>
> -----Original Message-----
> From: Jonathan Charles [mailto:jonvoip at gmail.com]
> Sent: Monday, June 04, 2007 2:33 PM
> To: c3voip
> Cc: ciscovoip
> Subject: Re: [cisco-voip] Gatekeeper architecture question
>
> No.
>
> You need one gatekeeper... however, if it is down, so is video
> communications...
>
> (there are other solutions for this... but one should be sufficient
> with just five sites... I have one GK for 12 sites, but the remotes
> just talk to the main site, so if the main is down, no one cares)...
>
> Basically, you need to scale this up to your redundancy needs (aka,
> how many gatekeepers do you need to be able to sleep at night?).
>
> Anyway.
>
> Here's what you do. Drop a GK at the main site, have all of the video
> devices register to it. Define the CAC and bandwidth on it (using zone
> bandwidths) and you will be fine...
>
>
>
> Jonathan
>
> On 6/4/07, c3voip <c3voip at nc.rr.com> wrote:
> >
> >
> >
> >
> > I have 5 regional sites that are connected back to my main site via
> > point-to-point serial connections.  I want to connect H.323 Video
> Conference
> > devices at each site to my CCMs back at my main site.  Do I need six
> > gatekeepers (one at each regional site and one at my main site) to
> > successfully perform CAC/bandwidth mgmt. for the VC devices to call from
> > site to site?  Or can I use domains and just get away with using one
> > gatekeeper at my main site?
> >
> >
> >
> > Thanks,
> >
> > -C
> >
> >
> >
> >
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> >
> >
>
>