| 摘要 |
<p>A method and apparatus for classifying a querying node as a multicast router (314) if it transmits a multicast routing protocol query message (310) and the node is either unclassified or classified as a multicast querier, and classifying the queyring node as a multicast querier (302) if it transmits a multicast group query message (304) and the node is unclassified (300).</p> |
