3. Map VLANs to MSTP instances:
4. Configure port membership and define the STGs for VLAN 2. Add server ports 3, 4
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CN4093 Application Guide for N/OS 8.3
CN 4093(config)# spanning-tree mst configuration
CN 4093(config-mst)# instance 1 vlan 1
CN 4093(config-mst)# instance 2 vlan 2
and 5 to VLAN 2. Add uplink ports 19 and 20 to VLAN 2. Assign VLAN 2 to STG 2.
CN 4093(config)# interface port 3,4,5,19,20
CN 4093(config-if)# switchport access vlan 2
CN 4093(config-if)# exit
Note: Each STG is enabled by default.