You must set the location bandwidth to unlimited so that CUCM uses RSVP determines if there is enough bandwidth. It sounds like you are using locations CAC as well. You must do one or the other.
Sent from my iPhone On Oct 22, 2012, at 11:34 PM, "virajith " <vir...@rediffmail.com> wrote: > > Hi Cory, > > Thanks for your inputs > > Whenever I use Mandatory in the location settings the call fails and I see a > message on the phone saying "Not enough Bandwidth" > > I have read that the callmanger does not directly participate in RSVP as it > is the agents ( in this case gateways) that decide BW allocation . > > Hence why is there a need to specify " Mandatory" in locations on the > callmanager? > > > -Vir > > > > From: Cory Gray <corygray22...@hotmail.com> > Sent: Mon, 22 Oct 2012 18:49:20 > To: "'virajith '" <vir...@rediffmail.com>, <ccie_voice@onlinestudylist.com> > Subject: Re: [OSL | CCIE_Voice] Fews questions on RSVP config in lab > My responses in line. > > > > From: ccie_voice-boun...@onlinestudylist.com > [mailto:ccie_voice-boun...@onlinestudylist.com] On Behalf Of virajith > Sent: Monday, October 22, 2012 2:53 AM > To: ccie_voice@onlinestudylist.com > Subject: [OSL | CCIE_Voice] Fews questions on RSVP config in lab > > > > Hi Guys, > > If we need to configure RSVP between 2 sites and There can be 4 concurrent > calls. G711 CODEC to be used for > multi-directional audio. > > > this mean that we set things up as this : - > > > dspfarm profile 1 mtp > codec g711u > codec pass‐through > rsvp > maximum sessions software 4 > associate application SCCP > > > Questions: > ============= > > 1) However the above would mean that when code pass-thru fails the call will > be sent over > wan as g711ulaw . Am I correct? > > > Codec pass-through does not fail. It allows the two endpoints to negotiate a > codec versus relying on the MTP. I typically do not use it but ran across > this “The pass-through keyword is supported for transcoding and MTP profiles > only; the keyword is not supported for conferencing profiles. To support the > Resource Reservation Protocol (RSVP) agent on a Skinny Client Control > Protocol (SCCP) device, you must use the codecpass-through command. In the > pass-through mode, the SCCP device processes the media stream by using a pure > software MTP, regardless of the nature of the stream, which enables video and > data streams to be processed in addition to audio streams.” So you can test > on your lab and decide whether or not to use it if you see it in your lab. > > > > > > 2)Does RSVP over fastethernet and gigainterface work in the same fashion as > point-to-point > multilink over serial cables? > Command reference does not list interface types in its caveats or > restrictions so test them both in your lab and let us know. I practice doing > it over serial interfaces. I could not see the point of using it on Ethernet > interfaces as the serial interface is how one site connects to the other. > > 3) Do we need to make the location setting on callmanger as mandatory or can > we just leave it as system default in this scenario? > System default unless changed in service parameters is no reservation. > Mandatory uses RSVP for every call. Optional will allow the call to proceed > and change the dscp value to a marking that is configurable in service > parameters. > > -Vir > > > > Catch India as it happens with the Rediff News App. To download it for FREE, > click here > > > > Catch India as it happens with the Rediff News App. To download it for FREE, > click here
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