User`s manual

NVF-800S 4-Band VDSL IP DSLAM USER’S MANUAL Ver_B.2
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4.2.2.4.8 Spanning Tree Protocol
The Spanning Tree Protocol (STP) is a standardized method (IEEE 802.1D) for avoiding loops in NVF-800S networks.
When STP is enabled, it ensures that only one path is active at a time between any two nodes on the network. (Figure
4.80)
1. The following parameter can be configured on each port, click Apply button to modify.
Figure 4.80 Spanning Tree port parameters
Item Description
Port Priority:
To make it more or less likely to become the root port, the range is 0~255, where default setting
is 128. The lowest number has the highest priority. If the value is changed, NVF-800S must be
rebooted.
Path Cost:
Specify the path cost of the port that NVF-800S uses to determine which port are the forwarding
ports. The lowest number is forwarding ports, the range is 1~65535 and default value based on
IEEE802.1D 10Mbps = 50~600 100Mb/s = 10~60 1000Mb/s = 3~10. If the value is changed,
NVF-800S must be rebooted.