Abstract

Nortel commissioned The Tolly Group to measure the Layer 2 switching performance and resiliency of the company’s stackable Ethernet Routing Switch 4500 series switches.

Tolly Group engineers measured the Layer 2, zero-loss throughput and standard deviation (Jitter) for an eight-unit stack. In addition, they reported the stackable switching capacity, or the total switching throughput “external” to users and “internal” between switch stack elements. Engineers also examined stack resiliency.