Cisco WS-C4003 - Catalyst 4000 Chassis Switch Software Configuration Manual page 192

Example VLAN Trunk Configurations
Port 1/2 vlans 1005 using portpri 4.
Switch_2> (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_2> (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_2> (enable)
Step 13 When you have configured the port-VLAN priorities on both ends of the link, the spanning tree
converges to use the new configuration.
Check the spanning tree port states on Switch 1 by entering the show spantree command. The Group 1
VLANs should be forwarding on Trunk 1 and blocking on Trunk 2. The Group 2 VLANs should be
blocking on Trunk 1 and forwarding on Trunk 2.
Switch_1> (enable) show spantree 1/1
Port
--------- ----
1/1
1/1
1/1
1/1
1/1
1/1
1/1
1/1
1/1
Switch_1> (enable) show spantree 1/2
Port
--------- ----
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
Switch_1> (enable)
Figure 11-3
Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
11-16
Chapter 11
Vlan Port-State Cost
------------- -----
1 forwarding
10 forwarding
20 forwarding
30 forwarding
40 blocking
50 blocking
60 blocking
1003 not-connected
1005 not-connected
Vlan Port-State Cost
------------- -----
1 blocking
10 blocking
20 blocking
30 blocking
40 forwarding
50 forwarding
60 forwarding
1003 not-connected
1005 not-connected
shows the network after you configure VLAN traffic load-sharing.
Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports
Priority Fast-Start
-------- ----------
19 32 disabled
19 1 disabled
19 1 disabled
19 1 disabled
19 32 disabled
19 32 disabled
19 32 disabled
19 32 disabled
19 4 disabled
Priority Fast-Start
-------- ----------
19 32 disabled
19 32 disabled
19 32 disabled
19 32 disabled
19 1 disabled
19 1 disabled
19 1 disabled
19 32 disabled
19 4 disabled
Group-method
------------
Group-method
------------
78-12647-02