Question

What is a requirement to configure a trunking EtherChannel between two switches?

1) The participating interfaces must be physically contiguous on a switch.
2) The allowed range of VLANs must be the same on both switches.
3) The participating interfaces must be on the same module on a switch.
4) The participating interfaces must be assigned the same VLAN number on both switches.

Answer 1

To set up a trunking EtherChannel between two switches, the allowed range of VLANs must be the same on both switches to ensure proper VLAN traffic flow.

Step-by-step explanation:

When configuring a trunking EtherChannel between two switches, several requirements must be met for the configuration to work properly. The requirement you've listed that is accurate is: The allowed range of VLANs must be the same on both switches. This ensures that both sides of the EtherChannel can carry the same VLAN traffic. The physical contiguity of interfaces or their location on the same switch module is not a requirement for EtherChannel, nor is assigning the same VLAN number to participating interfaces (as they will carry traffic for many VLANs).