HP ProCurve 9304M Installation And Configuration Manual page 226

Installation and Basic Configuration Guide
that are not eligible for Fast Port Span, such as ports connected to other networking devices, the device
automatically uses the normal STP settings. If a port matches any of the following criteria, the port is ineligible for
Fast Port Span and uses normal STP instead:
• The port is 802.1q tagged
• The port is a member of a trunk group
• The port has learned more than one active MAC address
• An STP Configuration BPDU has been received on the port, thus indicating the presence of another bridge on
the port.
You also can explicitly exclude individual ports from Fast Port Span if needed. For example, if the only uplink
ports for a wiring closet switch are Gigabit ports, you can exclude the ports from Fast Port Span.
Disabling and Re-enabling Fast Port Span
Fast Port Span is a system-wide parameter and is enabled by default. Thus all ports that are eligible for Fast Port
Span use it.
To disable or re-enable Fast Port Span, use one of the following methods.
USING THE CLI
To disable Fast Port Span, enter the following commands:
HP9300(config)# no fast port-span
HP9300(config)# write memory
Syntax: [no] fast port-span
NOTE: The fast port-span command has additional parameters that let you exclude specific ports. These
parameters are shown in the following section.
To re-enable Fast Port Span, enter the following commands:
HP9300(config)# fast port-span
HP9300(config)# write memory
USING THE WEB MANAGEMENT INTERFACE
1. Log on to the device using a valid user name and password for read-write access.
2. Click the Fast checkbox next to Spanning Tree to remove the checkmark from the box.
3. Click Apply to apply the change to the device's running-config.
4. Select the Save link at the bottom of the panel. Select Yes when prompted to save the configuration change
to the startup-config file on the device's flash memory.
Excluding Specific Ports from Fast Port Span
You can exclude individual ports from Fast Port Span while leaving Fast Port Span enabled globally. To do so,
use one of the following methods.
USING THE CLI
To exclude a port from Fast Port Span, enter commands such as the following:
HP9300(config)# fast port-span exclude ethernet 1/1
HP9300(config)# write memory
To exclude a set of ports from Fast Port Span, enter commands such as the following:
HP9300(config)# fast port-span exclude ethernet 1/1 ethernet 2/1 ethernet 3/2
HP9300(config)# write memory
To exclude a contiguous (unbroken) range of ports from Fast Span, enter commands such as the following:
HP9300(config)# fast port-span exclude ethernet 1/1 to 1/24
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