Carrier Class SNMP Deployment

Nexus Reporting for Carrier Class IP Reporting Based on SNMP

Carrier Class SNMP, as provided by the Virtualization Layer Architecture, is more than just a tool for producing performance reports for IP and Optical Ethernet (OE) devices. By ensuring that these reports are founded on accurate data metrics that capture the critical traffic peaks, network operation managers and supervisors can minimize risks and save money, ultimately enhancing network utilization while increasing revenues and customer satisfaction for IP and OE devices.

The key to network management is accurate, reliable and timely data, without which the entire planning process is risky. If the statistics used to extrapolate trends are mere "guesstimates" due to a lack of data, it is impossible to plan effectively. Network traffic is typically burst-like, with semi-predictable peaks and flows. As a management system will provide highly misleading statistics if it loses data during traffic peaks, it is imperative to be able to identify precisely when and where the peaks occur.

Virtualization Layer Architecture - Helping the Bottom Line

The Virtualization Layer, implemented in the Performance Management Reporting Tool, is designed to provide a reliable foundation on which to base network management decisions.

  • Decreased Packet Loss:
    The Virtualization Layer positions pollers closer to the network elements that they are monitoring, thereby reducing the likelihood of packet loss and its resulting smoothing effect.
  • Data Collation with a Timestamp:
    If the subsequent forwarding of the polled data to the MRA server is lost, it can easily be retransmitted, in which case the peaks will be noticed because the Nexus Virtualization Layer stores collated data with a timestamp.
  • Flexible Polling:
    The flexibility of the SNMP pollers allows different network interfaces to be polled at different rates. Thus trunks that appear to be congested, such as ones where the 5 minute averages are consistently above 50%, can have their polling frequency increased to, for example, once every one or two minutes - without having to poll less used interfaces at this same level. This keeps monitoring overhead low while concentrating on potential trouble spots.

With highly accurate data, real trends can be seen and networks can be sized correctly to cope with spikes in usage. In other words, traffic growth becomes predictable and there is no need to add a "fudge factor" to compensate for traffic patterns believed to be present but which cannot be confirmed. This, of course, has a positive impact on your bottom line:

  • Capital expenditure becomes predictable
  • Transparency for optimizing existing infrastructure
  • Optimized utilization for reducing capital expenditure
  • Improved service for customer satisfaction

Detection of usage spikes decreases the likelihood of SLA violations and outages due to traffic volumes. Secondly, because the statistics are reliable, the operator can be proactive in suggesting upgrades or changes to agreed throughput maximums, rather than a customer finding himself abruptly cut off due to a breached limit.

Overcoming Limits

Traditional SNMP implementation has demonstrable and well-known weaknesses in the following three areas, limiting its applicability as an end-to-end method of monitoring carrier networks:

  • Efficiency
  • Reliability
  • Scalability

It is widely accepted within the IT industry that the addition of Virtualization serves to improve network efficiency, reliability and scalability. The Virtualization Layer Architecture addresses precisely these 3 weaknesses of traditional SNMP data collection from IP and OE devices and thus provides a true Carrier Class solution. Making informed decision-making easier, the Virtualization Layer Architecture provides clear benefits to managers of large networks.

Nexus Carrier Class SNMP is backed by eight years of experience in some of the largest carrier networks in the world. We believe we can account for our Carrier Class designation in a way that our competitors simply cannot.