5.11.1 RSTP Confi guration
System Priority: Sets the system priority of each switch within the network. The
switch with the lowest system priority will become the root bridge. If the switch
is used in a large-scale enterprise network, it is recommended to skip this setting.
Hello Time: Sets a value ranging 1 second to 10 seconds. This sets the time
interval for the root bridge transmission of packets to all of other switches, so it
is known which switch is serving as the root bridge. When a switch not serving as
the root bridge is set with a specifi c value, the value does not take effect. Only
when the switch becomes the root bridge is the setting active.
Max Age: Sets a value ranging 6 seconds to 40 seconds. If a switch does not
receive the packet transmitted by the root bridge when the maximum aging time
is up, the switch will take over as the root bridge and transmit the packets to
all other switches. If the switch has the lowest priority level, it will continue to
function as the root bridge. This setting should be set to a large value, to avoid
unnecessary resetting of the root bridge.
Forward Delay: Sets a value ranging 4 seconds to 30 seconds. This is the moni-
toring time for a switch port to change from blocking status into forwarding
status (i.e. how long it will take for a port to become active after another port
has failed). A higher value means greater delay in response.
Version: Selects the version of Spanning Tree to use: RSTP based on 802.1W (de-
fault value) or STP based on 802.1D (Note: RSTP is the current industry standard.)
5.11.2 RSTP Port Confi guration
Protocol Enabled: Enables or disables the RSTP function by port. By default this
function is disabled for all ports
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