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[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] join mechanism:IGMP version2 ‚ ‚ ‚ ‚ leave mechanism:IGMP version 2 ‚ ‚ ‚ ‚ ‚ ‚ ‚ ‚ IGMP version 2:leave mechanism;multicast:IGMP version 2:leave mechanism ‚ 2nd ‚ |
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