ADTRAN Stub Routing

IP Multicast Stub Routing in AOS Glossary

Multicast: A transmission sent to a specific set of receivers.

Multicast Routing: The abilityto d etermine the proper loop-free paths on which to forward multicast

packets such that all subscribing listeners receive the stream without wasting network resources.

PIM: Protocol Independent Multicast. A multicast routing protocol that uses the unicast routing table with

no concern of how the routing table isp opulated.

Receiver:SeeListener.

Source: A device that originates multicast packets to be received by one or more receivers.

Stream: Th e flow of information being sent by a multicast source to a specific group of receivers. For

certaincontent types (e.g., audio, video, etc. ) the streammay be a constant flow. For other contenttypes

(e.g., data, software updates, etc.) the flow may be sporadic.

Stub Net work: A network portion that has a single connection to the remainder of the network.

Subscriber:SeeListener.

Unicast: A transmission sent to a specific receiver.

Upstream: Withregard to I P multicast stub routing (IGMP forwarding), the router interface that connects

to the multicast-enabled network.