These values (the ones imposed by the current Root Bridge) are displayed with the MONITOR SPANTREE command as the active HELLO_TIME, active FORWARD_DELAY_TIME, and active LISTEN_TIME.
Table
Table 4-8. SHOW SPANTREE Command Attributes
Attribute | Description |
|
|
Bridge Priority | The priority of this bridge. The bridge priority is |
| used with the bridge Ethernet address to |
| determine which bridge becomes the Root |
| Bridge in the network. |
|
|
Path Cost Port1 | The value of this parameter determines the path |
Path Cost Port2 | cost of port 1 or port 2 on the Bridge Module. |
| The Spanning Tree Protocol seeks to minimize |
| the path cost between the bridge and the Root |
| Bridge (called the root path cost). The cost |
| should be a lower value as the distance between |
| the bridge and the Root Bridge is lessened. |
|
|
Hello Time (sec) | The rate (in seconds) at which this bridge, when |
| it is the Root Bridge, will send out a Multicast |
| address packet (hello packet). This packet is sent |
| to all other Ethernet Bridges to let them know |
| the root is still active. |
|
|
Forward Delay Time | The amount of time (in seconds) that bridges will |
(sec) | wait in each Spanning Tree state when moving |
| from Listening to Forwarding mode when this |
| bridge is root. The modes that are affected by |
| this parameter are Listening and Learning. |
|
|
4 - 110 ONline Ethernet Bridge Module Installation and Operation Guide
