STP Configuration
Table 21-10 Configure STP port priority
Enter global configuration mode
Enter interface configuration mode
interface ethernet interface-num
Configure STP port priority
spanning-tree port-priority priority
21.4.7 Configure STP Mcheck
Switch working under RSTP mode can be connected to switch with STP. But when the
neighbor is working under RSTP, the two connected ports are still work under STP mode.
Mcheck is for force port sending RSTP packet to make sure the two neighbor ports can be
working under RSTP. If yes, the working mode will turn to be RSTP.
Table 21-11 Configure STP mcheck
Enter global configuration mode
Enter interface configuration mode
interface ethernet interface-num
21.4.8 Configure STP Point-to-Point Mode
In rstp, the requirement of interface quickly in transmission status is that the interface must
be point to point link not media sharing link. It can be specified interface link mode manually
and can also judge it by network bridge.
Table 21-12 Configure STP point-to-point mode
Enter global configuration mode
Enter interface configuration
mode
interface ethernet interface-num
Configure switch auto-check the
point-to-point
spanning-tree point-to-point auto
Configure STP point-to-point
mode forcetrue
spanning-tree point-to-point forcetrue
Configure STP point-to-point
mode forcefalse
spanning-tree point-to-point forcefalse
21.4.9 Configure STP Portfast
Edge port is the port connecting to the host which can be in transmission status in very
short time after linkup, but once the port receiving STP packet, it will shift to be non-edge port.
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