Cisco Systems OL-8335-02 manual Default Disable, Range Default

Chapter 3 Configuring Ports and Interfaces

Configuring Ports

Table 3-6	Controller Spanning Tree Status (continued)
Parameter		Description
Max Age (seconds)		The maximum age of STP information learned from the network on any
		port before it is discarded.
Hello Time (seconds)		The amount of time between the transmission of configuration BPDUs
		by this node on any port when it is the root of the spanning tree or trying
		to become so. This is the actual value that this bridge is currently using.
Forward Delay (seconds)		This value controls how fast a port changes its spanning tree state when
		moving toward the forwarding state. It determines how long the port
		stays in each of the listening and learning states that precede the
		forwarding state. This value is also used, when a topology change has
		been detected and is underway, to age all dynamic entries in the
		forwarding database.
		Note This is the actual value that this bridge is currently using, in
		contrast to Stp Bridge Forward Delay, which is the value that
		this bridge and all others would start using if this bridge were
		to become the root.
Hold Time (seconds)		The minimum time period to elapse between the transmission of
		configuration BPDUs through a given LAN port.
		Note At most, one configuration BPDU can be transmitted in any
		hold time period.

Step 8 Table 3-7lists and describes the controller’s configurable STP parameters. Follow the instructions in the table to make any desired changes.

Table 3-7 Controller Spanning Tree Parameters

Parameter	Description
Spanning Tree Algorithm	Enables or disables STP for the controller.
	Options: Enable or Disable
	Default: Disable
Priority	The location of the controller in the network topology and how well the
	controller is located to pass traffic.
	Range:	0 to 65535
	Default:	32768
Maximum Age (seconds)	The length of time that the controller stores protocol information
	received on a port.
	Range:	6 to 40 seconds
	Default:	20 seconds

Cisco Wireless LAN Controller Configuration Guide

OL-8335-02 3-25