Chapter 13 Spanning Tree Protocol
XGS4600 Series User’s Guide
162
Figure 131 Advanced Application > Spanning Tree Protocol > RSTP (Stacking Mode)
The following table describes the labels in this screen.
Table 61 Advanced Application > Spanning Tree Protocol > RSTP
LABEL DESCRIPTION
Status Click Status to display the RSTP Status screen.
Active Select this check box to activate RSTP. Clear this check box to disable RSTP.
Note: You must also activate Rapid Spanning Tree in the Advanced Application >
Spanning Tree Protocol > Configuration screen to enable RSTP on the Switch.
Bridge Priority Bridge priority is used in determining the root switch, root port and designated port. The Switch
with the highest priority (lowest numeric value) becomes the STP root switch. If all Switches
have the same priority, the Switch with the lowest MAC address will then become the root
switch. Select a value from the drop-down list box.
The lower the numeric value you assign, the higher the priority for this bridge.
Bridge Priority determines the root bridge, which in turn determines Hello Time, Max Age and
Forwarding Delay.
Hello Time This is the time interval in seconds between BPDU (Bridge Protocol Data Units) configuration
message generations by the root switch. The allowed range is 1 to 10 seconds.
Max Age This is the maximum time (in seconds) the Switch can wait without receiving a BPDU before
attempting to reconfigure. All Switch ports (except for designated ports) should receive BPDUs
at regular intervals. Any port that ages out STP information (provided in the last BPDU)
becomes the designated port for the attached LAN. If it is a root port, a new root port is
selected from among the Switch ports attached to the network. The allowed range is 6 to 40
seconds.
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