This document introduces the Allied Telesis x900 series switch VCStack + Link Aggregation high availability solution. This solution is achieved by configuring 802.3ad link aggregation between the edge and the core for full bandwidth utilization and maximum availability.
Allied Telesis provides a resilient network solution by combining Virtual Chassis Stacking (VCStack) with 802.3ad link aggregation. This approach ensures full bandwidth utilization and maximum availability without relying on Spanning Tree Protocol (STP) or VRRP, simplifying management while maintaining high reliability.
The solution provides full network bandwidth because both ports in an aggregated link are active, whereas traditional spanning tree protocols would block some links.
Communication between stack members is maintained through a backup resiliency link, allowing for graceful reconfiguration.
The switch enables 802.1x authentication, DHCP snooping, and ARP security to prevent unauthorized access and various network attacks.