Configuring The Customer Switch - Cisco WS-CBS3032-DEL Software Configuration Manual

Configuring Layer 2 Protocol Tunneling

Configuring the Customer Switch

After configuring the SP edge switch, begin in privileged EXEC mode and follow these steps to
configure a customer switch for Layer 2 protocol tunneling for EtherChannels:
Command
Step 1
configure terminal
Step 2 interface interface-id
Step 3 switchport trunk encapsulation
dot1q
Step 4 switchport mode trunk
Step 5 udld enable
Step 6
channel-group channel-group-number
mode desirable
Step 7 exit
Step 8
interface port-channel port-channel
number
Step 9
shutdown
Step 10 no shutdown
Step 11 end
Step 12
show l2protocol
Step 13
copy running-config startup-config
Use the no switchport mode trunk, the no udld enable, and the no channel group
channel-group-number mode desirable interface configuration commands to return the interface to the
default settings.
For EtherChannels, you need to configure both the SP edge switches and the customer switches for
Layer 2 protocol tunneling. (See
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
17-16
Chapter 17
Purpose
Enter global configuration mode.
Enter the interface configuration mode. This should be the customer switch
port.
Set the trunking encapsulation format to IEEE 802.1Q.
Enable trunking on the interface.
Enable UDLD in normal mode on the interface.
Assign the interface to a channel group, and specify desirable for the PAgP
mode. For more information about configuring EtherChannels, see
Chapter 38, "Configuring EtherChannels and Link-State Tracking."
Return to global configuration mode.
Enter port-channel interface mode.
Shut down the interface.
Enable the interface.
Return to privileged EXEC mode.
Display the Layer 2 tunnel ports on the switch, including the protocols
configured, the thresholds, and the counters.
(Optional) Save your entries in the configuration file.
Figure 17-6 on page
Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling
17-10.)
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