MC-LAG or Multichassis Link Aggregation Link

Owned by Jean-luc KRIKER

Last updated: Oct 07, 2020

1 min read

https://www.juniper.net/documentation/en_US/junos/topics/topic-map/mc-lag-redundancy-and-multihoming.html

Multichassis Link Aggregation User Guide

https://www.juniper.net/documentation/en_US/junos/information-products/pathway-pages/mc-lag/multichassis-link-aggregation-groups.pdf

An MC-LAG provides

redundancy and
load balancing between the two MC-LAG peers,
multihoming support, and
a loop-free Layer 2 network without running Spanning Tree Protocol (STP).

Chapter 3: Next-Generation Internet Exchange Architecture Case Study

EX4300 and QFX5100 - LAG and ECMP hashing algorithm

https://kb.juniper.net/InfoCenter/index?page=content&id=KB28946

Hashing algorithm for link aggregation groups (LAGs) on EX Series switches

https://kb.juniper.net/InfoCenter/index?page=content&id=KB22943&actp=METADATA