Specifications

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
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Chapter 7 Configuring LAN Ports for Layer 2 Switching
Configuring LAN Interfaces for Layer 2 Switching
• You cannot configure a custom EtherType field value on the ports in an EtherChannel.
• You cannot form an EtherChannel from ports that are configured with custom EtherType field
values.
This example shows how to configure the EtherType field value to 0x1234:
Router (config-if)# switchport dot1q ethertype 1234
Router (config-if)#