Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual page 83

Chapter 5 Configuring Ethernet VLAN Trunks
Confirm the channeling and trunking status of the switches by entering the show port channel and show
Step 1
trunk commands.
Switch_A> (enable) show port channel
No ports channelling
Switch_A> (enable) show trunk
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 an EtherChannel bundle with the neighboring switch by
Step 2
entering the set port channel command. 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 1/1-2 desirable
Port(s) 1/1-2 channel mode set to desirable.
Switch_A> (enable) %PAGP-5-PORTFROMSTP:Port 1/1 left bridge port 1/1
%PAGP-5-PORTFROMSTP:Port 1/2 left bridge port 1/2
%PAGP-5-PORTFROMSTP:Port 1/2 left bridge port 1/2
%PAGP-5-PORTTOSTP:Port 1/1 joined bridge port 1/1-2
%PAGP-5-PORTTOSTP:Port 1/2 joined bridge port 1/1-2
Switch_B> (enable) %PAGP-5-PORTFROMSTP:Port 3/1 left bridge port 3/1
%PAGP-5-PORTFROMSTP:Port 3/2 left bridge port 3/2
%PAGP-5-PORTFROMSTP:Port 3/2 left bridge port 3/2
%PAGP-5-PORTTOSTP:Port 3/1 joined bridge port 3/1-2
%PAGP-5-PORTTOSTP:Port 3/2 joined bridge port 3/1-2
Step 3 After the EtherChannel bundle is negotiated, verify the configuration by entering the show port channel
command.
Switch_A> (enable) show port channel
Port
----- ---------- --------- ----------- ------------------------- ----------
1/1
1/2
----- ---------- --------- ----------- ------------------------- ----------
Switch_A> (enable)
Switch_B> (enable) show port channel
Port
----- ---------- --------- ----------- ------------------------- ----------
3/1
3/2
----- ---------- --------- ----------- ------------------------- ----------
Switch_B> (enable)
Configure one of the ports in the EtherChannel bundle to negotiate an ISL trunk by entering the set
Step 4
trunk command.
The configuration is applied to all of the ports in the bundle. This example assumes that the neighboring
ports on Switch B are configured to use isl or negotiate encapsulation and are in auto trunk mode. The
system logging messages provide information about the formation of the ISL trunk.
78-13315-02
Status Channel Channel
mode status
connected desirable channel
connected desirable channel
Status Channel Channel
mode status
connected auto channel
connected auto channel
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
Neighbor
device
WS-C5000 009979082(Sw
WS-C5000 009979082(Sw
Neighbor
device
WS-C5500 069003103(Sw
WS-C5500 069003103(Sw
Example VLAN Trunk Configurations
Neighbor
port
3/1
3/2
Neighbor
port
1/1
1/2
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