 | Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
IP multicasting in access networks often involves an access server replicating the same multicast stream to multiple subscribers. This type of replication wastes access bandwidth when multiple subscribers access network services using the same access node. The amount of multicast replication is based on the number of subscribers, rather than the number of access nodes.
The access node sending a single copy of the multicast stream to a specific access node is a more efficient use of the bandwidth. Using this method, the access node performs the multicast replication for subscribers that reside beyond the access node.
ANCP transactional multicast enables the E-series router to set up a multicast replication state in the access node. In Asynchronous Transfer Mode (ATM) access networks, the B-RAS can use the ANCP to set up point-to-multipoint cross-connects in the access nodes.
| Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |