Once you have a firm understanding of the traffic on the network, the next logical step is to classify it and prioritize it. This will allow truly important traffic to fly unencumbered even in high bandwidth utilization conditions, while the rest waits for the best effort service. Monitoring the utilization of the queues is key for verifying your configuration (which can often be complex), and for the process of continuous optimization. Baselining the performance of each queue and alerting when anomalies occur before the entire circuit is affected will let you be proactive. Comparing the configuration of the QoS queues with the information derived from NetFlow will ensure that your enterprise applications are always given the level of service they require.
Managing bandwidth needs and consumption is a discipline that has existed since the first 150bps modems connected computer systems together. Today, with multi-gigabit links becoming an everyday reality, we are still facing the same conundrums. Only the number of zeros has changed.
Vess Bakalov, CTO for SevOne Inc., says one thing to remember is that bandwidth and bandwidth management is a means to an end, and not an end in itself. We need adequate performance for our applications and users for the minimum expenditure. To do this effectively, we must first understand what “adequate” means for these users and applications. Only once this often-omitted step is completed can we effectively employ any bandwidth management techniques.
Check out this list of five quick tips on better bandwidth management.
SevOne provides a fast, easy, and scalable network appliance that combines granular performance data from NetFlow, SNMP, VoIP, IP SLA, NBAR and WMI into a single view. This enables IT staff to lower their total cost of ownership, assure service levels and increase productivity.