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5 Cards in this Set
- Front
- Back
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Blocking
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When a switch is in the blocking state, it does not forward frames, it accepts BPDUs. It also does not store MAC addresses.
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Listening
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The switch still does not forward frames when listening. No new entries are made to the MAC address table; however, old, incorrect entries are timed out (this is particularly necessary when topology changes have occurred. It actively listens for other BPDUs.
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Learning
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Frames are not yet forwarded, but the switch begins to learn the MAC addresses of frames received on the interface.
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Forwarding
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Frames are forwarded, and MAC address are still being learned.
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Disabled
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Disabled ports do not accept BPDUs, do not forward frames, nor do they learn MAC addys
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