IBM 8260 ∙ STP Facility, ∙ Bridge Hello Time, ∙ STP Domain Address, ∙ Bridge Forward Delay Time

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	Config *	STP System Parameters
			Module: BladeRunner
	System		Time:	17:06 5 Jan 95
	STP Facility:	Enabled	STP Version:	draft
	STP Domain Address:	0180C2000000	Reset Delay Time:	120
	Bridge Priority:	8000	Bridge Hello Time:	400
	Bridge Max Age Time: 1200		Bridge Forward Delay Time: 800

	Exit
	Version of the Spanning Tree Protocol
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Figure	153. LMS STP System Parameters Panel

This panel allows you to view and modify the following system-wide spanning tree protocol (STP) parameters:

∙STP Facility

If enabled, this parameter allows the Multiprotocol Interconnect module to take part in the spanning tree protocol.

∙Bridge Hello Time

Specifies the frequency (in hundredths of a second) with which the Hello BPDUs will be transmitted by the Multiprotocol Interconnect module should this module become the root bridge.

∙STP Domain Address

This parameter specifies the address to which the Hello BPDUs will be sent. This parameter must be the same for all the bridges to have a single spanning tree within the network. Default for this entry is 0180C2000000.

∙Bridge Forward Delay Time

Specifies the length of time (in seconds) the bridge will remain in each of the intermediate states ( learning and listening) when it is going from the blocking to forwarding state.

∙Bridge Priority

This parameter is used to determine the root bridge in the spanning tree. The bridge with the highest priority (lowest numeric value for bridge priority) becomes the root bridge. This is also used to determine the designated bridge when the path cost to the root bridge is the same for two or more bridges.

Chapter 11. 8260 Multiprotocol Interconnect Module 265