PIM-SM???????????

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PIM-SM???????????
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PIM-SM?????????,???????????????????????????????,??
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PIM-SM??
PIM-SM???? ?????DR??? PIM-SM??/????
????????? ????SPT?? ????????? ??RP??
PIM-SM?SNMP?????
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PIM-SM???
(S,G) (,G) (,,RP) WC-bit?RPT-bit?SPT-bi
t
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?????DR??
???PIM-Hello???IP????DR??
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Join/Prune
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??????SPT?
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Assert??
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??RP??
BSRHash????RP
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PIM-SM?SNMP???
PIM??? PIM??? PIM????? PIM????
PIM RP? PIM RP-SET? PIM C-RP? PIM???
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???(Hot swap)
?????? HSRP?? ???????????
PIM-SM??????
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PIM-SM??????
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PIM-SM ??? QoS