Mark,
so your saying just IP pim dense mode no ip pim sparse-dense-mode? Thanks, Chad On Feb 13, 2008 9:44 AM, Mark Snow <[EMAIL PROTECTED]> wrote: > Each router only decrements 1 hop per router - not interface - so > technically it would be 2 hops away. > > Every interface involved in Multicast needs to have PIM enabled in > some sort of fashion (including the Loopback interface if streaming > out to a PSTN POTS Trunk!) - the easiest for the Voice lab being PIM- > Dense where we flood everywhere and do not care about RPs. > Bear in mind you will not hear Multicast if you phone HQ Phone 3 to > BR1 Phone 3 (where both those phones are IPBlue or even hardware > phones behind your EasyVPN connection) and hit hold - due to the fact > that IPSec only supports Unicast traffic - not Multicast or Broadcast > traffic. > > You CAN hear it however by picking up lets say BR1 Phone 3 and phoning > out to the PSTN (911 for ease) and putting the PSTN Phone on hold by > pressing hold from the BR1 Phone. > This puts the BR1 Gateway on hold technically - and the BR1 Gateway > turns the VoIP - into regular old PCM - sends it out the PRI - over to > the PSTN Gateway PRI - then becomes VoIP again (this time Unicast) and > streams to the PSTN Phone. > Assuming you are controlling your PSTN Phone with an IPBlue client (we > show you how on the ProctorLabs Voice vRack web page) - then you > should hear the stream and be able to do a "sh ip mroute" along with > the PerfMon tool on the UCM Server - and verify that Multicast is > indeed working and you can hear it! > > Cheers, > > > Mark Snow > CCIE #14073 (Voice, Security) > CCSI #31583 > Senior Technical Instructor - IPexpert, Inc. > A Cisco Learning Partner - We Accept Learning Credits! > Telephone: +1.810.326.1444 > Fax: +1.309.413.4097 > Mailto: [EMAIL PROTECTED] > > IPexpert - The Global Leader in Self-Study, Classroom-Based, Video On > Demand and Audio Certification Training Tools for the Cisco CCIE R&S > Lab, CCIE Security Lab, CCIE Service Provider Lab , CCIE Voice Lab and > CCIE Storage Lab Certifications. > > > On Feb 13, 2008, at 12:06 AM, jason sung wrote: > > > I am little confused on Multicast MOH hops. Can somebody correct me > > if I am wrong about the following. > > > > 1. MOH server is in the same vlan as voice vlan > > In this case if I were to stream MMOH to Branch 1: My hop count will > > be 3. > > 1st hop is local voice vlan, 2nd hop is the WAN link and 3rd hop is > > the branch 1 phones. > > > > > > > > 2. MOH server is in a seperate server vlan. > > In this case if I were to stream MMOH to Branch 1: My hop count will > > still be 3. > > 1st hop is server vlan, 2nd hop is my WAN link and 3rd hop is the > > branch 1 phones. > > > > Do I need to place "ip pim-dense mode" command on the serial > > interfaces as well? > > > > Jason. > >
