Howtotroubleshootslownetworkperformance-AlliedTelesis.PDFVIP

How To | Troubleshoot Slow Network Performance Introduction This How To Note describes techniques for troubleshooting slow network performance. When troubleshooting a network slow down problem, it is very important to keep in mind that hardware-based forwarding in switches never slows down - it continues to operate at wire speed on all ports all the time. Therefore, the cause of slow network performance is never going to be something that is causing a slow down of hardware switching. In fact, the three most common reasons for a network slow down are: congestion data corruption collisions A fourth, less common, cause for network slow down is: a high rate of STP Topology Change Notifications. This document provides useful strategies to help you methodically investigate and resolve the issues that may be slowing your network down. Which products does it apply to? This document applies to the following Allied Telesis routers and managed Layer 3 switches: x900 and x600 series switches SwitchBlade x908 series switches C613-16145-00 REV A Network Slowdown Typically, slow performance is not experienced across a whole network. Rather, most often what happens is that some or all workstations on the network experience slow performance of applications interacting with one, or a set, of network servers. Before looking into the network switches for the cause of the slowdown, it is impo