Shulou(Shulou.com)06/01 Report--

CISCOportfast is used for access. A normal switching interface from down to up goes through several states of Down,listening,learning,fowarding, which takes a total of 30 seconds to determine whether the port is blocking or fowarding, and it is also the loop prevention mechanism of the switch. However, it is not necessary for the interface to directly access such terminal devices to go through these steps, that is, directly from down to the state of fowarding. Basic configuration method: Sw1 (config) # spanning-tree portfast default (all interfaces enabled) is generally used on switches at the access layer globally. Sw1 (config-if) # spanning-tree portfast disable (a port is disabled, usually a port connected to another switch) H3C basic configuration method interface GigabitEthernet1/0/4

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