Cisco WS-C4003 Software Guide - Page 191
Step 9, Caution, value lower than the default of 32
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Chapter 11 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports Example VLAN Trunk Configurations Step 9 In this example, VLANs 10, 20, and 30 (Group 1) are forwarded over Trunk 1, and VLANs 40, 50, and 60 (Group 2) are forwarded over Trunk 2. On Switch 1, enter the set spantree portvlanpri command to change the port-VLAN priority for the Group 1 VLANs on Trunk 1 (port 1/1) to an integer value lower than the default of 32: Switch_1> (enable) set spantree portvlanpri 1/1 1 10 Port 1/1 vlans 1-9,11-1004 using portpri 32. Port 1/1 vlans 10 using portpri 1. Port 1/1 vlans 1005 using portpri 4. Switch_1> (enable) set spantree portvlanpri 1/1 1 20 Port 1/1 vlans 1-9,11-19,21-1004 using portpri 32. Port 1/1 vlans 10,20 using portpri 1. Port 1/1 vlans 1005 using portpri 4. Switch_1> (enable) set spantree portvlanpri 1/1 1 30 Port 1/1 vlans 1-9,11-19,21-29,31-1004 using portpri 32. Port 1/1 vlans 10,20,30 using portpri 1. Port 1/1 vlans 1005 using portpri 4. Switch_1> (enable) Step 10 On Switch 1, change the port-VLAN priority for the Group 2 VLANs on Trunk 2 (port 1/2) to an integer value lower than the default of 32: Switch_1> (enable) set spantree portvlanpri 1/2 1 40 Port 1/2 vlans 1-39,41-1004 using portpri 32. Port 1/2 vlans 40 using portpri 1. Port 1/2 vlans 1005 using portpri 4. Switch_1> (enable) set spantree portvlanpri 1/2 1 50 Port 1/2 vlans 1-39,41-49,51-1004 using portpri 32. Port 1/2 vlans 40,50 using portpri 1. Port 1/2 vlans 1005 using portpri 4. Switch_1> (enable) set spantree portvlanpri 1/2 1 60 Port 1/2 vlans 1-39,41-49,51-59,61-1004 using portpri 32. Port 1/2 vlans 40,50,60 using portpri 1. Port 1/2 vlans 1005 using portpri 4. Switch_1> (enable) Step 11 On Switch 2, change the port-VLAN priority for the Group 1 VLANs on Trunk 1 (port 1/1) to the same value you configured for those VLANs on Switch 1. Caution The port-VLAN priority for each VLAN must be equal on both ends of the link. Switch_2> (enable) set spantree portvlanpri 1/1 1 10 Port 1/1 vlans 1-9,11-1004 using portpri 32. Port 1/1 vlans 10 using portpri 1. Port 1/1 vlans 1005 using portpri 4. Switch_2> (enable) set spantree portvlanpri 1/1 1 20 Port 1/1 vlans 1-9,11-19,21-1004 using portpri 32. Port 1/1 vlans 10,20 using portpri 1. Port 1/1 vlans 1005 using portpri 4. Switch_2> (enable) set spantree portvlanpri 1/1 1 30 Port 1/1 vlans 1-9,11-19,21-29,31-1004 using portpri 32. Port 1/1 vlans 10,20,30 using portpri 1. Port 1/1 vlans 1005 using portpri 4. Switch_2> (enable) Step 12 On Switch 2, change the port-VLAN priority for the Group 2 VLANs on Trunk 2 (port 1/2) to the same value you configured for those VLANs on Switch 1: Switch_2> (enable) set spantree portvlanpri 1/2 1 40 Port 1/2 vlans 1-39,41-1004 using portpri 32. Port 1/2 vlans 40 using portpri 1. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 11-15