Enabling Or Disabling The Spanning Tree Protocol (Stp) - HP ProCurve 9304M Installation And Configuration Manual

Table 8.3 lists the default STP port parameters. The port parameters affect individual ports and are separately
configurable on each port.
Parameter Description
Priority The preference that STP gives this port relative to other
ports for forwarding traffic out of the spanning tree.
A higher numerical value means a lower priority; thus,
the highest priority is 8.
Path Cost The cost of using the port to reach the root bridge. When
selecting among multiple links to the root bridge, STP
chooses the link with the lowest path cost and blocks the
other paths. Each port type has its own default STP path
cost.

Enabling or Disabling the Spanning Tree Protocol (STP)

You can enable or disable STP on the following levels:
• Globally – Affects all ports on the device.
• Port-based VLAN – Affects all ports within the specified port-based VLAN. When you enable or disable STP
within a port-based VLAN, the setting overrides the global setting. Thus, you can enable STP for the ports
within a port-based VLAN even when STP is globally disabled, or disable the ports within a port-based VLAN
when STP is globally enabled.
• Individual port – Affects only the individual port. However, if you change the STP state of the primary port in a
trunk group, the change affects all ports in the trunk group.
Enabling or Disabling STP Globally
Use the following methods to enable or disable STP on a device on which you have not configured port-based
VLANs.
NOTE: When you configure a VLAN, the VLAN inherits the global STP settings. However, once you begin to
define a VLAN, you can no longer configure standard STP parameters globally using the CLI. From that point on,
you can configure STP only within individual VLANs.
USING THE CLI
To enable STP for all ports in all VLANs on an HP device, enter the following command:
HP9300(config)# spanning-tree
This command enables a separate spanning tree in each VLAN, including the default VLAN.
Syntax: [no] spanning-tree
USING THE WEB MANAGEMENT INTERFACE
1. Log on to the device using a valid user name and password for read-write access. The System configuration
panel is displayed.
2. Select Enable next to Spanning Tree.
Configuring Spanning Tree Protocol (STP) and Advanced STP Features
Table 8.3: Default STP Port Parameters
Default and Valid Values
128
Possible values: 8 – 252
(configurable in increments
of 4)
10 Mbps – 100
100 Mbps – 19
Gigabit – 4
10 Gigabit – 2
Possible values are 0 –
65535
8 - 3