Table 24 Common Internal Spanning Tree parameter descriptions
Parameter | Description |
|
|
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. |
|
|
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. |
|
|
Hops | Shows the maximum number of bridge hops allowed before a packet is dropped. |
|
|
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. A setting of |
| zero (0) indicates that the cost will be set to the appropriate default after the link |
| speed has been |
|
|
State | Shows the current state of the port. The state field can be one of the following: |
| Discarding (DISC), Learning (LRN), Forwarding (FWD), or |
| Disabled (DSB). |
|
|
Role | Shows the current role of this port in the Spanning Tree. The port role can be one of |
| the following: Designated (DESG), Root (ROOT), Alternate (ALTN), Backup (BKUP), |
| Master (MAST), or Unknown (UNK). |
|
|
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. |
| Information includes the port priority (hex) and the port number (hex). |
|
|
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. |
|
|
Type | Type of link connected to the port, and whether the port is an edge port. Link type |
| values are AUTO, P2P, or SHARED. |
|
|
Trunk group information
Command: /info/l2/trunk
Trunk group 1, Enabled port state:
17:STG 1 forwarding
18:STG 1 forwarding
When trunk groups are configured, you can view the state of each port in the various trunk groups.
NOTE: If Spanning Tree Protocol on any port in the trunk group is set to forwarding, the remaining ports in the trunk group will also be set to forwarding.
Information Menu 42