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MAC address for switch and router

Hi

How many MAC addresses are there for the switch and router? As many as the number of ports or just one?

Thanks

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a
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Switches that participate in Spanning Tree Protocol must have a different MAC for each participating port.

Routers only need one MAC in theory, but are likely to have one MAC per interface.

I've seen at least one router that used a different MAC for each VLAN on a port.

Reply to
Walter Roberson

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