STP
RSTP
& MST
RPVST+
PVST+
2000
2010
Figure 10-3
Timeline of Per-VLAN and Multiple STP Features
Today, Cisco Catalyst switches give us three options to configure on the spanning-tree
mode command, which tells the switch which type of STP to use. Note that the switches
do not support STP or RSTP with the single tree (CST). They can use either the Cisco-
proprietary and STP-based PVST+, Cisco-proprietary and RSTP-based RPVST+, or the IEEE
standard MSTP. Table 10-2 summarizes some of the facts about these standards and options,
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