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Keefe

10-21-2002 12:22 AM

Term of the day: Protocol-Independent Multicast

Abbreviated PIM, a multicasting routing protocol that runs over an existing unicast infrastructure. There are two variations of PIM:

PIM-SM -- Short for PIM-Sparse Mode, which is used when recipients are scattered over a large area.
PIM-DM -- Short for PIM-Dense Mode, which is used when the targeted recipients are in a concentrated area.

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