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Configuring spanning tree protocol (STP)
Spanning tree switch configuration/status
The switch participates in Spanning Tree Protocol (STP). STP allows you to
configure redundant paths in the switch topology. The switch automatically blocks
redundant paths to prevent loops (that is, make it fault tolerant). If an active path is
broken and a backup path is available, the switch finds the redundant path and
enables it. Without STP, a path failure means loss of connectivity for the affected
part of the network.
The switch complies with the IEEE 802.1D standard. Refer to the IEEE 802.1D
document for STP specifications. The switch supports one Spanning Tree Protocol
(STP) for the entire switch.
To configure the Spanning Tree Protocol for the switch, select Device
Configuration Menu from the Main Menu, then select Spanning Tree Switch
Configuration/Status Menu or Spanning Tree Port Configuration/Status Menu
from the Device Configuration Menu (Figure 33).
The following section lists and describes the STP configuration functions and
related parameters.
Spanning Tree Algorithm
Indicates if the switch participates in Spanning Tree Protocol. A status of
Enable means that the switch participates in the STP. Disable means that
the switch does not participate in the STP. The default is Disable.
Bridge Priority
Decimal value that indicates the priority of the switch. The range is 0 to
65535. The lower the value, the higher the priority. The bridge with the
lowest priority value becomes the root (IEEE 802.1D). The default is 32768.
Maximum Age Time
When the switch is root, Maximum Age Time is the time in seconds during
which the configuration message used by the Spanning Tree Algorithm is
discarded. The range is 6 to 40 seconds. The default is 20 seconds.
Figure 33. Spanning tree switch configuration/status
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