Abstract
Unlike many other multicast routing protocols, such as, DVMRP or M0-SPF, which depend on specific unicast routing protocols1, PIM [DEF+94] [DEF+96] can operate with any unicast routing protocol in a given autonomous system (AS). Therefore PIM is called “protocol independent”. PIM has two modes of operation, namely, (1) PIM Dense Mode (PIM-DM) and (2) PIM Sparse Mode (PIM-SM).
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Notes
DVMRP depends on RIP while MOSPF is based on OSPF.
The PIM designers do not use the term “source join”. They use “join” only for receivers. However, in an abstract sense the source also joins the RP and hence the author took the liberty of using the term “source join”.
A data packet matches the (*,*,RP) entry if there is no specific entry, such as, (S,G) or (*,G) corresponding to the packet and the packet’s destination address maps into the RP of the (*,*,RP) entry.
We assume that R2 joins the SPT as opposed to RP-Tree for simplicity.
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© 1998 Springer Science+Business Media New York
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Paul, S. (1998). Protocol Independent Multicast (PIM). In: Multicasting on the Internet and its Applications. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5713-5_6
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DOI: https://doi.org/10.1007/978-1-4615-5713-5_6
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-7616-3
Online ISBN: 978-1-4615-5713-5
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