Global Configuration

Global Configuration

  1. Go to Switch Configuration > L2 Configuration > STP Configuration > Global Configuration.
  2. Check Enable STP.
    Figure 1. Global Configuration
  3. Configure the parameters.
    Table 1. Parameters of STP

    Parameter

    Description

    STP Mode

    • STP: Spanning-tree protocol.

    • RSTP: Rapid spanning-tree protocol. RSTP provides faster spanning tree convergence after a topology change.

    Bridge Priority

    The lower the number is, the higher the priority is. The range is from 0 to 61,440 seconds, in increments of 4096; the default is 32,768. Valid values are 0, 4096, 12288, 16384 ... and 61440.

    A switch with higher bridge priority is more likely to become a root bridge.

    Hello Time

    The time between each BPDU that is sent on a port, which is used for port link diagnosis. The range is from 1 to 10 seconds. The default is 2 seconds.

    Maximum Aging Time

    The maximum length of time that passes before a bridge port saves its configuration BPDU information. The range is from 6 to 40 seconds. The default is 20 seconds.

    Note:

    The maximum aging time must meet the following conditions:

    • Maximum Aging Time ≥ (Hello Time + 1)

    • Maximum Aging Time ≤ (Forwarding Delay - 1)

    Forwarding Delay

    The time interval that is spent in the listening and learning state when the topology changes. The range is from 4 to 30 seconds. The default is 15 seconds.

  4. Click Save.

Global Configuration

  1. Go to Switch Configuration > L2 Configuration > STP Configuration > Global Configuration.
  2. Check Enable STP.
    Figure 1. Global Configuration
  3. Configure the parameters.
    Table 1. Parameters of STP

    Parameter

    Description

    STP Mode

    • STP: Spanning-tree protocol.

    • RSTP: Rapid spanning-tree protocol. RSTP provides faster spanning tree convergence after a topology change.

    Bridge Priority

    The lower the number is, the higher the priority is. The range is from 0 to 61,440 seconds, in increments of 4096; the default is 32,768. Valid values are 0, 4096, 12288, 16384 ... and 61440.

    A switch with higher bridge priority is more likely to become a root bridge.

    Hello Time

    The time between each BPDU that is sent on a port, which is used for port link diagnosis. The range is from 1 to 10 seconds. The default is 2 seconds.

    Maximum Aging Time

    The maximum length of time that passes before a bridge port saves its configuration BPDU information. The range is from 6 to 40 seconds. The default is 20 seconds.

    Note:

    The maximum aging time must meet the following conditions:

    • Maximum Aging Time ≥ (Hello Time + 1)

    • Maximum Aging Time ≤ (Forwarding Delay - 1)

    Forwarding Delay

    The time interval that is spent in the listening and learning state when the topology changes. The range is from 4 to 30 seconds. The default is 15 seconds.

  4. Click Save.