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RFC 2236... 7 g0 Z' ~5 y9 ?( Y- b% `( j M. N( m& V5 c
& b2 D: w# |9 r* p. FThere is normally only one Querier per physical network. All multicast routers start up as a Querier : ^% d2 v9 o- e; d
on each attached network. If a multicast router hears a Query message from a router with a lower IP " t2 M' k4 e0 Haddress, it MUST become a Non-Querier on that network. M' m- {, }1 ^) ~ B; S