Examkin

Soru

Zorluk: OrtaLayer 2 and Layer 3 EtherChannel (LACP)

A network engineer is setting up a dynamic Layer 2 EtherChannel between Switch-A and Switch-B using the Link Aggregation Control Protocol (LACP). Switch-A is configured on its member interfaces with `channel-group 10 mode active`. The engineer wants Switch-B to form the EtherChannel by only responding to incoming LACP negotiation requests without actively sending initial negotiation frames. Which command should be applied to Switch-B's member interfaces?

  1. channel-group 10 mode passiveCevap
  2. B
    channel-group 10 mode auto
  3. C
    channel-group 10 mode desirable
  4. D
    channel-group 10 mode on

Cevap

The correct command is `channel-group 10 mode passive` because LACP passive mode responds to incoming LACP negotiation packets sent by an LACP active peer without actively initiating LACP frame transmissions.
The command `channel-group 10 mode passive` configures the interface to use LACP in a passive role. When connected to a device in LACP active mode (such as Switch-A), the passive interface receives the active LACP frames, responds to them, and successfully forms an EtherChannel bundle.

Adım Adım Çözüm

1
Identify the protocol in use on Switch-A.
Switch-A uses `channel-group 10 mode active`, which identifies IEEE 802.3ad LACP in active negotiation mode.
EtherChannel negotiation protocols must match on both ends (LACP to LACP).
2
Determine the required operating mode for Switch-B.
Switch-B must operate in LACP passive mode.
LACP passive mode waits to receive LACP packets and responds to them, allowing the bundle to form when paired with an active peer.
3
Evaluate protocol options to select the correct CLI command.
`channel-group 10 mode passive` matches the exact requirement for LACP passive behavior.
Modes such as `auto` and `desirable` use PAgP instead of LACP, and `on` disables dynamic protocol negotiation completely.

Anahtar Kavram

LACP EtherChannel Mode Compatibility and Operation
Bu soruyu puanla

Konular

Layer 2 and Layer 3 EtherChannel (LACP)

Bu konudan daha fazla soru