HP BMD00022 manual Parameters Description

You can also refer to the following port-specific STP information:

•Port number and priority

•Cost

•State

•Port Fast Forwarding state

•Designated bridge

•Designated port

The following table describes the STP parameters.

Table 22 STP parameters

Parameters	Description
Current Root	Shows information about the root bridge for the Spanning Tree. Information
	includes the priority (hex) and MAC address of the root.
Path-Cost	Path-cost is the total path cost to the root bridge. It is the summation of the path
	cost between bridges (up to the root bridge).
Port	The current root port refers to the port on the switch that receives data from the
	current root. Zero (0) indicates the root bridge of the STP.
Priority (bridge)	The bridge priority parameter controls which bridge on the network will become
	the STP root bridge.
Hello	The hello time parameter specifies, in seconds, how often the root bridge transmits
	a configuration bridge protocol data unit (BPDU). Any bridge that is not the root
	bridge uses the root bridge hello value.
MaxAge	The maximum age parameter specifies, in seconds, the maximum time the bridge
	waits without receiving a configuration bridge protocol data unit before it
	reconfigures the STP network. If the bridge is not the root bridge, it uses the
	MaxAge value of the root bridge.
FwdDel	The forward delay parameter specifies, in seconds, the amount of time that a
	bridge port has to wait before it changes from learning state to forwarding state. If
	the bridge is not the root bridge, it uses the FwdDel value of the root bridge.
Aging	The aging time parameter specifies, in seconds, the amount of time the bridge
	waits without receiving a packet from a station before removing the station from
	the Forwarding Database.
Priority (port)	The port priority parameter helps determine which bridge port becomes the
	designated port. In a network topology that has multiple bridge ports connected to
	a single segment, the port with the lowest port priority becomes the designated
	port for the segment.
Cost	The port path cost parameter is used to help determine the designated port for a
	segment. Generally speaking, the faster the port, the lower the path cost.
State	The State field shows the current state of the port. The State field can be one of the
	following: BLOCKING, LISTENING, LEARNING, FORWARDING, or DISABLED.
Designated bridge	Shows information about the bridge connected to each port, if applicable.
	Information includes the priority (hex) and MAC address of the Designated Bridge.
Designated port	The port ID of the port on the Designated Bridge to which this port is connected.
	This information includes the port priority (hex) and the port number (hex).
	Information Menu 43