Netgear GSM4248P User Manual - Page 782

AV Line of Fully Managed Switches M4250 Series Main User Manual 5. On the CST Port Configuration page, select ports 1 through 8 and select Enable from the STP Status menu (see Configure the CST interface settings on page 231). 6. Click the Apply button. 7. Select ports 1 through 5 (edge ports), and select Enable from the Fast Link menu. Because the edge ports are not at risk for network loops, ports with Fast Link enabled transition directly to the forwarding state. 8. Click the Apply button. You can use the CST Port Status page to view spanning tree information about each port. 9. On the MST Configuration page (Manage MST instances on page 236), create an MST instance with the following settings: • MST ID: 1 • Priority: Use the default (32768) • VLAN ID: 300 10. Click the Add button. 11. Create a second MST instance with the following settings: • MST ID: 2 • Priority: 49152 • VLAN ID: 500 12. Click the Add button. In this example, assume that Switch 1 became the root bridge for the MST instance 1, and Switch 2 became the root bridge for MST instance 2. Switch 3 supports hosts in the sales department (ports 1, 2, and 3) and in the HR department (ports 4 and 5). Switches 1 and 2 also include hosts in the sales and HR 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. VLAN routing interfaces VLANs divide broadcast domains in a LAN environment. When hosts in one VLAN must communicate with hosts in another VLAN, the traffic must be routed between them. Configuration Examples 782 Main User Manual