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24-port NWay Ethernet Switch User’s Guide

Using the Console Interface 73

♦ Time Since Topology Changes(sec) Read-only object

displays the last time changes were made to the network

topology. These changes usually occur when backup paths

are activated due to primary path failures.

♦ Topology Change Count Read-only object displays the

number of times (since the current management session

with the device was started) changes were made to the

network topology. Changes usually occur on the network

when backup paths are activated.

♦ Designated Root Read-only object displays the MAC

(Ethernet) address of the bridge/switch on the network

that has been chosen as the STP root.

♦ Root Cost Read-only object displays the cost for the path

between the switch and the root bridge. If the switch is the

root bridge, then the root cost is zero.

♦ Root port Read-only object identifies the port (on the

bridge) that offers the least path cost from the bridge to the

root bridge. In the event of a network loop, data packets

will pass through the root port.

♦ Max Age(Sec) Read-only object indicates the maximum

age of STP information learned from the network (on any

port) before it is discarded.

♦ Forward Delay(Sec) Read-only object indicates how fast

any port on the bridge can change its spanning state when

moving towards the forwarding state. The value

determines how long the port stays in each of the listening

and learning states, which precede the forwarding state.

♦ Hold Time(Sec) Read-only object displays the time interval

during which no more than two configuration BPDUs shall be

transmitted by the bridge.

Удалено: Using the Console

Interface