 | Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
Generally, multicast snooping is a way for a Layer 2 device to “snoop” at the Layer 3 packet content to determine which actions should be taken to process or forward a frame. There are specific forms of snooping, such as IGMP snooping or PIM snooping. In all cases, snooping involves a device configured to function at Layer 2 having access to Layer 3 (packet) information. Snooping makes multicasting more efficient in these devices.
For information about Layer 2 and multicast addressing, see Layer 2 Frames and Multicast. For more information about multicast snooping, see Overview of Multicast Snooping.
| Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |