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Loop example S1, S2, S3 are connected in a triangle H1 is connected to S1H2 is connected to S2 causes flooding on three switches Example HlpingH2, MAC table is empty S2 will find pings coming in from two different input interfaces
Loop example S1, S2, S3 are connected in a triangle H1 is connected to S1H2 is connected to S2 causes flooding on three switches Example HlpingH2, MAC table is empty S2 will find pings coming in from two different input interfaces