TTL threshold utilization

TTL threshold utilization
The multicast source initially sets the TTL value for the multicast packet and then forwards
it on throughout the network. In this scenario, the TTL threshold values have been set to 200
on both of the exiting Packet over Sonet (POS) interfaces. The initial TTL value has been set to
30 by the application. There are three to four router hops to get out of the campus network.
Router 3 will decrement by one, leaving a TTL value of 29; the Catalyst 6509’s MSFC will decrement
by one as well, leaving the value set to 28. After the packet reaches Router 2 or Router 1,
the value will be 27 or 26, respectively. Both of these values are less than the TTL threshold of
200, which means that Router 1 and Router 2 will drop any outbound multicast packets.