Interlogix NS3502-8P-2S User Manual Manuel d'utilisateur télécharger pdf (Page 144)

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IFS NS3502-8P-2S User Manual

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 Disabled – the port only responds to network management messages and must return to the

blocking state first

A port transitions from one state to another as follows:

 From initialization (switch boot) to blocking

 From blocking to listening or to disabled

 From listening to learning or to disabled

 From learning to forwarding or to disabled

 From forwarding to disabled

 From disabled to blocking

Figure 4-7-1: STP Port State Transitions

You can modify each port state by using management software. When you enable STP, every port on

every switch in the network goes through the blocking state and then transitions through the states of

listening and learning at power up. If properly configured, each port stabilizes to the forwarding or

blocking state. No packets (except BPDUs) are forwarded from, or received by, STP enabled ports until

the forwarding state is enabled for that port.

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