200-301 · Question #754
A network administrator creates a layer 3 EtherChannel, bundling four interfaces into channel group 1. On what interface is the IP address configured?
The correct answer is A. the port-channel 1 interface. For a Layer 3 EtherChannel, the IP address is configured exclusively on the logical port-channel interface, which represents the aggregated link.
Question
A network administrator creates a layer 3 EtherChannel, bundling four interfaces into channel group 1. On what interface is the IP address configured?
Options
- Athe port-channel 1 interface
- Bthe highest number member interface
- Call member interfaces
- Dthe lowest number member interface
How the community answered
(62 responses)- A92% (57)
- B2% (1)
- C2% (1)
- D5% (3)
Why each option
For a Layer 3 EtherChannel, the IP address is configured exclusively on the logical `port-channel` interface, which represents the aggregated link.
When configuring a Layer 3 EtherChannel, the IP address is applied solely to the logical `interface port-channel` (e.g., `interface port-channel 1`), as this is the single virtual interface that acts as the routing endpoint for the bundled physical links.
Individual physical member interfaces of a Layer 3 EtherChannel are configured to be part of the channel group and do not have IP addresses assigned to them.
IP addresses are not configured on all individual member interfaces of a Layer 3 EtherChannel; their role is to be bundled into the logical port-channel interface.
Individual physical member interfaces of a Layer 3 EtherChannel are configured to be part of the channel group and do not have IP addresses assigned to them.
Concept tested: Layer 3 EtherChannel IP configuration
Source: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12_2_55_se/configuration/guide/scg3750/swethchl.html
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