Netgear GS752TS GS7xxTS-TPS Software Admin Manual - Page 321

GS728TS, GS728TPS, GS752TS, and GS752TPS Gigabit Smart Switches 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 125). 6. From the CST Port Configuration screen, select ports 1-8 and select Enable from the STP Status menu (see CST Port Configuration on page 126). 7. Click Apply. 8. Select ports 1-5 (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. 9. Click Apply. You can use the CST Port Status screen to view spanning tree information about each port. 10. 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 130. 11. Click Add. 12. Create a second MST instance with the following settings • MST ID: 2 • Priority: 49152 • VLAN ID: 500 13. 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 1, 2, and 3) and in the HR department (ports 4 and 5). Switches 1 and 2 also have hosts in the Sales and Human Resources departments. The hosts connected from Switch 2 use VLAN 500, MST instance 2 to communicate with the hosts on Switch 3 directly. Likewise, hosts of Switch 1 use VLAN 300, MST instance 1 to communicate with the hosts on Switch 3 directly. The hosts use different instances of MSTP to effectively use the links across the switch. The same concept can be extended to other switches and more instances of MSTP. 321