All things related to multicast

[Alan Crosswell <>]

Perhaps you could set up GRE tunnels across your infrastructure and only enable 
PIM on the tunnels?  Cisco actually recommends this technique as a way to load 
share multicast across parallel links (letting the underlying unicast routing 
protocol to the load sharing).
/a

Luís Marta wrote:
> Hi.
>
> If one has a backbone network based on Fast/Gigabit Ethernet, different
> brands of routers and not-so-powerful switches (no chance of running RGMP),
> how does one implement multicast?
> In order to avoid the multicast traffic to leak to all the switches' ports,
> i thought of creating a separate VLAN to the multicast traffic, a VLAN that
> connects the RP, the backbone routers until the last one before the client
> (the access routers), but then the last connection may be ATM ou any other
> technology.
> As PIM interacts with the routing protocol in use (OSPF for example), how
> can i make the multicast traffic that is supposed to go to a certain client
> use the mentioned VLAN? Is there any other way of doing this without using
> static mroutes to map the clients' routes? Because this is very
> time-consuming and impossible to maintain.
>
> Thanks in advance,
>
> Luís Marta.