200-301 · Question #1146
Refer to the exhibit. A network engineer is adding another physical interface as a new member to the existing Port-Channel1 bundle. Which command set must be configured on the new interface to complet
The correct answer is A. no switchport. To add a physical interface to a Layer 3 EtherChannel, the physical interface must be configured as a Layer 3 port by disabling switchport functionality.
Question
Exhibits
Options
- Ano switchport
- Bno switchport
- Cswitchport mode trunk
- Dswitchport
How the community answered
(46 responses)- A74% (34)
- B4% (2)
- C15% (7)
- D7% (3)
Why each option
To add a physical interface to a Layer 3 EtherChannel, the physical interface must be configured as a Layer 3 port by disabling switchport functionality.
The `no switchport` command on a physical interface prepares it for Layer 3 operations, which is a necessary configuration step before adding it to an EtherChannel bundle that is intended for Layer 3 (e.g., has an IP address configured on the Port-Channel interface).
This option is identical to A, but it's a duplicate and not the designated correct answer.
The `switchport mode trunk` command configures an interface for Layer 2 trunking, which would conflict with a Layer 3 EtherChannel configuration on the Port-Channel interface.
The `switchport` command would enable Layer 2 functionality on the interface, which is typically disabled when contributing to a Layer 3 EtherChannel.
Concept tested: EtherChannel member interface preparation
Source: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_55_se/configuration/guide/scg/swethchl.html
Topics
Community Discussion
No community discussion yet for this question.

