Which two protocols are link aggregation protocols? (Choose two.)

IT Exam Items RepositoryCategory: CCNAWhich two protocols are link aggregation protocols? (Choose two.)

Which two protocols are link aggregation protocols? (Choose two.)

  • 802.3ad
  • PAgP
  • STP
  • EtherChannel
  • RSTP

Explanation: The two protocols that can be used to form an EtherChannel are PAgP (Cisco proprietary) and LACP, also know as IEEE 802.3ad. STP (Spanning Tree Protocol) or RSTP (Rapid Spanning Tree Protocol) is used to avoid loops in a Layer 2 network. EtherChannel is the term that describes the bundling of two or more links that are treated as a single link for spanning tree and configuration.

Related exam: 6.4.4 Module Quiz - Etherchannel Answers
Related exam: CCNA 3 (v5.0.3 + v6.0) Chapter 3 Exam Answers
Related exam: CCNA 3 v6 Chapter 4: Check Your Understanding