Netgear GS728TXS GS728TXS/GS752TXS Software Administration Manual - Page 312

GS752TXS and GS728TXS Smart Switches Use the default values for the rest of the STP configuration settings. By default, the STP Operation Mode is MSTP and the Configuration Name is the switch MAC address. 4. From the CST Configuration screen, set the Bridge Priority value for each of the three switches to force Switch 1 to be the root bridge: • Switch 1. 4096 • Switch 2. 12288 • Switch 3. 20480 Note: Bridge priority values are multiples of 4096. If you do not specify a root bridge and all switches have the same Bridge Priority value, the switch with the lowest MAC address is elected as the root bridge (see CST Configuration on page 120). 5. From the CST Port Configuration screen, select ports g1-g8 and select Enable from the STP Status menu (see CST Port Configuration on page 121). 6. Click Apply. 7. Select ports g1-g5 (edge ports), and select Enable from the Fast Link menu. Since the edge ports are not at risk for network loops, ports with Fast Link enabled transition directly to the Forwarding state. 8. Click Apply. You can use the CST Port Status screen to view spanning tree information about each port. 9. From the MST Configuration screen, create a MST instances with the following settings: • MST ID. 1 • Priority. Use the default (32768) • VLAN ID. 300 For more information, see MST Configuration on page 125. 10. Click Add. 11. Create a second MST instance with the following settings • MST ID. 2 • Priority. 49152 • VLAN ID. 500 12. Click Add. In this example, assume that Switch 1 has become the Root bridge for the MST instance 1, and Switch 2 has become the Root bridge for MST instance 2. Switch 3 has hosts in the Sales department (ports g1, g2, and g3) and in the HR department (ports g4 and g5). Switches 1 and 2 also have hosts in the Sales and Human Resources departments. The 312