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24-port NWay Ethernet Switch User’s Guide
82 Using the Console Interface
♦ 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.
♦ Root Priority Read-only object displays the
priority number of the root bridge of the Spanning
Tree. The value is used in conjunction with the
bridge MAC address to set the bridge ID, which in
turn is used when determining the root bridge of a
multi-bridged network. The root bridge is
responsible for processing data packets when
network loops occur. The smaller the number set,
the higher the bridge priority is. The higher the
bridge priority, the more chance the bridge has of
becoming the root bridge. A bridge priority ranges
from 0 to 65535, with 0 being the highest priority.