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Installation and Getting Started Guide
Table 5.4: Web Management Display of STP Information
This Field... Displays...
STP Bridge Parameters (global parameters)
VLAN ID The port-based VLAN that contains this spanning tree (instance of
STP). AN 1 is the default VLAN. If you have not configured port-
based VLANs on this device, all STP information is for VLAN 1.
Root ID The ID assigned by STP to the root bridge for this spanning tree.
Root Cost The cumulative cost from this bridge to the root bridge. If this device
is the root bridge, then the root cost is 0.
Root Port The port on this device that connects to the root bridge. If this device
is the root bridge, then the value is “Root” instead of a port number.
Priority This device or VLAN’s STP priority. e value is shown in
hexadecimal format.
Note: If you configure this value, specify it in decimal format. See
“Changing STP Bridge Parameters” on page 5-4.
Max Age The number of seconds this device or VLAN waits for a hello message
from the root bridge before deciding the root has become unavailable
and performing a reconvergence.
Hello Time The interval between each configuration BPDU sent by the root
bridge.
Hold Time The minimum number of seconds that must elapse between
transmissions of consecutive Configuration BPDUs on a port.
Forward Delay The number of seconds this device or VLAN waits following a
topology change and consequent reconvergence.
Topology Last Change The number of seconds since the last time a topology change
occurred.
Topology Change Counter The number of times the topology has changed since this device was
reloaded.
Bridge Address The STP address of this device or VLAN.
Note: If this address is the same as the Root ID, then this device or
VLAN is the root bridge for its spanning tree.
VL
Th
STP Port Parameters
VLAN The VLAN that the port is in.
Port The port number.
Priority The port’s STP priority, in hexadecimal format.
Note: If you configure this value, specify it in decimal format. See
“Changing STP Port Parameters” on page 5-5.
Path Cost The port’s STP path cost.
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