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MC-LAG in SONiC
This is the fourth post in series focused on SONiC-Network Operating System and its applications in data center networking
Summary of posts:
- SONiC Architecture
- EVPN-VxLAN, Asymmetric/Symmetric IRB
- EVPN Multi-homing
- MC-LAG, LACP Configurations (current)
- SONiC configurations & interfaces
- Static Anycast gateway configurations
In previous blog we discussed Multi-homing. In this port lets compare the MC-LAG configurations in SONiC with EVPN Multi-homing.
A Link Aggregation Group (LAG) is a logical interface created by combining multiple physical interfaces on a device into a single group.
It utilizes a hashing algorithm to distribute traffic across the links, enabling load balancing. Additionally, it ensures redundancy by automatically switching to another link if one fails.
MC-LAG (Multi-chassis Link Aggregation Group) connects two switches and presents them as a single switch to the link partner, creating a single logical LAG interface across both switches.
Terminologies:
- Peer: A switch required for running MC-LAG. Two such switches are grouped together to present themselves as a single logical node to the remote…
