Spanning Tree - Dahua DH-PFS4218-16GT2GF-240 Manual

2) Set MAC address and VLAN.
3) Click OK.
The devices in MAC whitelist can communicate with port normally.

3.1.6 Spanning Tree

The spanning tree protocol is the protocol of layer 2. It can eliminate the ring cycle of layer 2 by
choosing to block the redundant links in the network, and it can back up the links.
Similar to other protocols, the spanning tree protocol is updated with the development of the
network: From STP (Spanning Tree Protocol), to RSTP (Rapid Spanning Tree Protocol), and to
the latest MSTP (Multiple Spanning Tree Protocol).
Step 1 Select Advanced > Common > Spanning Tree > STP Ports Settings.
The STP Ports Settings interface is displayed. See Figure 3-19.
Step 2 Select the STP mode: STP, RSTP and MSTP.
 STP: The most basic spanning tree protocol.
 RSTP: Improved based on STP, and realizes rapid convergence of network
topology.
 MSTP: Remedies the defects of STP and RSTP. MSTP not only realizes rapid
convergence, but also provides better load sharing mechanism for the redundant
links by forwarding the flow from different VLANs through their own paths.
Step 3 Click Save, and the results are various according to the different modes. See Figure
3-20, Figure 3-21 and Figure 3-22.
Figure 3-19 STP ports settings
Advanced Settings 25