Question

Which statement describes an EtherChannel implementation?

A) EtherChannel operates only at Layer 2.
B) PAgP cannot be used in conjunction with EtherChannel.
C) A trunked port can be part of an EtherChannel bundle.
D) EtherChannel can support up to a maximum of ten separate links.

Answer 1

Answer: C) A trunked port can be part of an EtherChannel bundle.

Explanation: An EtherChannel implementation refers to the process of bundling multiple physical Ethernet links into a single logical link. This provides increased bandwidth, redundancy, and load balancing capabilities. Let's go through each statement to determine which one accurately describes an EtherChannel implementation.

A) EtherChannel operates only at Layer 2.

This statement is not accurate. EtherChannel operates at both Layer 2 (data link layer) and Layer 3 (network layer). It combines multiple physical links into a single logical link, allowing traffic to be load balanced across the member links.

B) PAgP cannot be used in conjunction with EtherChannel.

This statement is incorrect. PAgP (Port Aggregation Protocol) is a Cisco proprietary protocol used to negotiate the formation of an EtherChannel. It allows the switches to dynamically negotiate the creation and termination of the EtherChannel bundle.

C) A trunked port can be part of an EtherChannel bundle.

This statement is accurate. A trunked port, which carries traffic for multiple VLANs, can be part of an EtherChannel bundle. By bundling multiple trunked ports, you can increase the overall capacity of the EtherChannel.

D) EtherChannel can support up to a maximum of ten separate links.

This statement is incorrect. The number of separate links that an EtherChannel can support depends on the specific network device and configuration. Different devices have different limits. For example, some devices can support up to eight links, while others can support more.

In summary, the statement that accurately describes an EtherChannel implementation is:

C) A trunked port can be part of an EtherChannel bundle.

Answer 2

EtherChannel combines multiple physical Ethernet links into a single logical link to increase bandwidth and redundancy.

Step-by-step explanation:

Option C) A trunked port can be part of an EtherChannel bundle describes an EtherChannel implementation.

EtherChannel combines multiple physical Ethernet links between two devices into a single logical link. It is commonly used to provide increased bandwidth and redundancy.

For example, in a network with two switches connected by four physical Ethernet links, you can create an EtherChannel bundle with these four links to form a single logical link. This logical link will then have the combined bandwidth of the four physical links and provide redundancy in case any individual link fails.