ZyXEL Communications IES-1248 VDSL-SWITCH User Manual page 144

IES-1248 User's Guide
LABEL
Time since change
Cost to root
Root port ID
Root max age (second)
Root hello time (second) This is the time interval (in seconds) at which the root switch transmits a configuration
Root forward delay
(second)
Max age (second)
Hello time (second)
Forward delay (second)
Port Status
State
Port ID
Path cost
Cost of root
Designated bridge
Designated port
Poll Interval(s)
Stop
17-6
Table 17-3 Spanning Tree Protocol: Status
This is the time since the spanning tree was last reconfigured.
This is the path cost from the root port on this switch to the root switch.
This is the priority and number of the port on the switch through which this switch must
communicate with the root of the Spanning Tree. "0x0000" displays when this device is
the root switch.
This is the maximum time (in seconds) the root switch can wait without receiving a
configuration message before attempting to reconfigure.
message. The root bridge determines Hello Time, Max Age and Forwarding Delay.
This is the time (in seconds) the root switch will wait before changing states (that is,
listening to learning to forwarding).
This is the maximum time (in seconds) the IES-1248 can wait without receiving a
configuration message before attempting to reconfigure.
This is the time interval (in seconds) at which the IES-1248 transmits a configuration
message. The root bridge determines Hello Time, Max Age and Forwarding Delay.
This is the time (in seconds) the IES-1248 will wait before changing states (that is,
listening to learning to forwarding).
This identifies the IES-1248's ports that support the use of STP.
This field displays the port's RSTP (or STP) state. With RSTP, the state can be
discarding, learning or forwarding. With STP, the state can be disabled, blocking,
listening, learning, or forwarding.
Disabled appears when RSTP has not been turned on for the individual port or the
whole device.
This is the priority and number of the port on the switch through which this switch must
communicate with the root of the Spanning Tree. "0x0000" displays when this device is
the root switch.
This is the path cost from this port to the root switch.
This is the path cost from the root port on this switch to the root switch.
This is the unique identifier for the bridge that has the lowest path cost to reach the root
bridge, consisting of bridge priority plus MAC address.
This is the port on the designated bridge that has the lowest path cost to reach the root
bridge, consisting of bridge priority.
The text box displays how often (in seconds) this screen refreshes. You may change the
refresh interval by typing a new number in the text box and then clicking Set Interval.
Click Stop to halt STP statistic polling.
DESCRIPTION
Spanning Tree Protocol