DVS-108 Series Managed Industrial Ethernet Switches User Manual CTS Status 3-48 Description Factory Default Bridge Forward Delay (secs) Enter the switch forward delay time, which is the period in seconds that a bridge remains in a listening and learning state before forwarding packets. Enter a number in the range of 4 to 30 seconds, considering that the period needs to be greater than or equal to (Bridge Max Age / 2) + 1. 15 Spanning Tree Maximum Hops Enter the maximum number of bridge hops; the information for a CST instance can travel before being discarded. Enter a number in the range of 6 to 40.
20 Dynamic Path Cost Specify whether the path cost is automatically calculated by selecting one of the following radio buttons: Disable: The path cost is not automatically calculated. Enable: The path cost is automatically calculated. Disable Extend System ID Status Specify whether the extended system identifier is added to the bridge priority by selecting one of the following radio buttons: Disable: The extended system identifier is not added to the bridge priority. Enable: The extended system identifier is added to the bridge priority. For example, bridge priority is 32768, for VLAN 1, the priority will be 32768+1; for VLAN 2, the priority will be 32768+2.
Disable Description Factory Default Bridge Identifier The STP bridge identifier for the Common Spanning Tree (CST) on the switch. The identifier consists of the bridge priority and the base (fixed) MAC address of the switch. MAC address Time Since Topology Change The time that has passed since the last change of the CST topology occurred. The time is displayed in the day-hour-minute-second format. day-hour-minute-second Topology Change Count The number of times the CST topology has changed. 0 Designated Root The STP bridge identifier of the root bridge. The identifier consists of the bridge priority and the base MAC address of the root bridge.
MAC address Root Path Cost The path cost to the designated root for the CST. 0 Root Port Identifier The interface that provides access to the designated root for the CST. 00:00 Max Age (secs) The timer that controls the maximum time that passes before an STP bridge port saves its configuration BPDU. 20 Forward Delay (secs) The value that is derived from the bridge forward delay parameter of the STP root port. 15 Hold Time (secs) The minimum period between the transmissions of configuration BPDUs. 1 CST Regional Root The priority and base MAC address of the CST regional root. MAC address CST Path Cost The path cost to the CST tree regional root. 0