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Catalyst 3750 Switch Software Configuration Guide
OL-8550-09
Appendix A Configuring the Catalyst 3750G Integrated Wireless LAN Controller Switch
Configuring the Wireless LAN Controller Switch
The ports are automatically configured with these parameters, including membership in an EtherChannel
port group, and you should not change these configurations. However, it is important that the
EtherChannel port group should be unique on the switch and in the stack; no other ports should belong
to the port group that contains the internal ports. If a switch stack includes more than one wireless LAN
controller switch, the internal port channel number must be different within each switch.
You can reconfigure the port channel number if necessary, and you can explicitly configure these ports
with other parameters. However, you should not configure features that limit traffic flow, such as ACLs,
VLAN maps, and IP source guard.
Configuring the Wireless LAN Controller Switch
You configure the wireless LAN controller switch by using the same commands that you use to configure
any Catalyst 3750 switch (standalone or in a switch stack). This section describes only the configuration
specific to the wireless LAN controller switch and includes these sections:
• Internal Port Configuration, page A-4
• Reconfiguring the Internal Ports, page A-5
• Accessing the Controller, page A-6
Internal Port Configuration
As explained in the “Internal Ports” section on page A-3, the internal ports connecting the switch and
controller are Gigabit Ethernet ports 27 and 28. You should not change the parameters defined in that
section as required for switch and controller interaction. This is a sample configuration for the internal
ports:
!
interface Port-channel41
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
end
!
interface GigabitEthernet2/0/27
description This interface is permanently connected to wireless controller
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
no cdp enable
channel-group 41 mode on
spanning-tree portfast trunk
end
!
interface GigabitEthernet2/0/28
description This interface is permanently connected to wireless controller
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
no cdp enable
channel-group 41 mode on
spanning-tree portfast trunk
end