I need some help setting up Multicast on my routers.
We Utilize Berbee?s Informacast for live audio phone broadcasts. Informacast uses Multicasting to accomplish this. At our central location Multicasting works fine. However we have several remote offices that need to use Informacast but Multicasting doesn?t work.
We have 2 3660 routers at our central location. Our remote offices connect to the central location with a T1 and a 1760 router.
Does anyone have any advise how to get Multicasting functional at my remote sites?
Assuming that the Berbee server is at the central location, you will need to enable multicast routing at both the central and remote locations. If there are redundant links to a site, you need to enable m'cast on both links.
Keep in mind that if you enable sparse-dense mode, you will still have to designate an RP for sparse mode to even work.
As I said earlier, the disadvantge with the dense mode is that if you send a Berbee broadcast to a specific remote site, it will be sent to all the others for some time. With sparse mode, only the sites that need the broadcast will get it. If WAN bandwidth utilization is a concern then sparse mode is the better choice.