Cisco WS-C4003 - Catalyst 4000 Chassis Switch Software Configuration Manual page 185

Chapter 11 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports
No ports trunking.
Switch_A> (enable)
Switch_B> (enable) show port channel
No ports channelling
Switch_B> (enable) show trunk
No ports trunking.
Switch_B> (enable)
Configure the ports on Switch A to negotiate a Gigabit EtherChannel bundle with the neighboring
Step 3
switch. This example assumes that the neighboring ports on Switch B are in EtherChannel auto mode.
The system logging messages provide information about the formation of the EtherChannel bundle.
Switch_A> (enable) set port channel 2/3-6 desirable
Port(s) 2/3-6 channel mode set to desirable.
Switch_A> (enable) %PAGP-5-PORTFROMSTP:Port 2/3 left bridge port 2/3
%PAGP-5-PORTFROMSTP:Port 2/4 left bridge port 2/4
%PAGP-5-PORTFROMSTP:Port 2/5 left bridge port 2/5
%PAGP-5-PORTFROMSTP:Port 2/6 left bridge port 2/6
%PAGP-5-PORTFROMSTP:Port 2/4 left bridge port 2/4
%PAGP-5-PORTFROMSTP:Port 2/5 left bridge port 2/5
%PAGP-5-PORTFROMSTP:Port 2/6 left bridge port 2/6
%PAGP-5-PORTFROMSTP:Port 2/3 left bridge port 2/3
%PAGP-5-PORTTOSTP:Port 2/3 joined bridge port 2/3-6
%PAGP-5-PORTTOSTP:Port 2/4 joined bridge port 2/3-6
%PAGP-5-PORTTOSTP:Port 2/5 joined bridge port 2/3-6
%PAGP-5-PORTTOSTP:Port 2/6 joined bridge port 2/3-6
Switch_B> (enable) %PAGP-5-PORTFROMSTP:Port 3/3 left bridge port 3/3
%PAGP-5-PORTFROMSTP:Port 3/4 left bridge port 3/4
%PAGP-5-PORTFROMSTP:Port 3/5 left bridge port 3/5
%PAGP-5-PORTFROMSTP:Port 3/6 left bridge port 3/6
%PAGP-5-PORTFROMSTP:Port 3/4 left bridge port 3/4
%PAGP-5-PORTFROMSTP:Port 3/5 left bridge port 3/5
%PAGP-5-PORTFROMSTP:Port 3/6 left bridge port 3/6
%PAGP-5-PORTFROMSTP:Port 3/3 left bridge port 3/3
%PAGP-5-PORTTOSTP:Port 3/3 joined bridge port 3/3-6
%PAGP-5-PORTTOSTP:Port 3/4 joined bridge port 3/3-6
%PAGP-5-PORTTOSTP:Port 3/5 joined bridge port 3/3-6
%PAGP-5-PORTTOSTP:Port 3/6 joined bridge port 3/3-6
Step 4 After the EtherChannel bundle is negotiated, enter the show port channel command to verify the
configuration.
Switch_A> (enable) show port channel
Port
----- ---------- --------- ----------- ------------------------- ----------
2/3
2/4
2/5
2/6
----- ---------- --------- ----------- ------------------------- ----------
Switch_A> (enable)
Switch_B> (enable) show port channel
Port
----- ---------- --------- ----------- ------------------------- ----------
3/3
3/4
78-12647-02
Status Channel Channel
mode status
connected desirable channel
connected desirable channel
connected desirable channel
connected desirable channel
Status Channel Channel
mode status
connected auto channel
connected auto channel
Software Configuration Guide—Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4
Neighbor
device
WS-C4003 JAB023806(Sw
WS-C4003 JAB023806(Sw
WS-C4003 JAB023806(Sw
WS-C4003 JAB023806(Sw
Neighbor
device
WS-C4003 JAB023806(Sw
WS-C4003 JAB023806(Sw
Example VLAN Trunk Configurations
Neighbor
port
2/3
2/4
2/5
2/6
Neighbor
port
2/3
2/4
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