Monitoring Technologies

SevOne uses multiple protocols and standards to collect, monitor, report and graph performance statistics. In this way, it is capable of monitoring any node in enterprise and service provider networks, including routers, switches, servers, firewalls, load balancers, VoIP phones, eNodeBs, Element Management System (EMS) NIDs, and UPS devices; and every application, operating system or process that is instrumented. Among the monitoring technologies and protocols that SevOne supports are SNMP, ICMP, NetFlow, IP SLA, NBAR, WMI, JMX, VMware vCenter API, and RTCP and SIP.

SNMP
SNMP (Simple Network Management Protocol) is a set of protocols for managing complex networks that works by sending query messages to SNMP-compliant devices located anywhere in the network. Device types can range from routers and switches to servers, firewalls and load balancers, and temperature sensors. Devices store data about themselves in Management Information Bases (MIBs) and return this data to the SNMP requesters.

The SevOne SNMP engine uses a series of templates for different device types to determine what to poll and how to present the information. In this way, new device types supporting standard or generic MIBs are supported immediately. Importing new definitions for new MIBs and objects is easily done in just a few minutes using SevOne’s SNMP Object Editor. The operation is entirely GUI driven, and even the most complex and enterprise-proprietary MIBs can be easily configured.

The SevOne SNMP engine is built for speed and flexibility, helping you to:
    * Set up monitors with a few mouse clicks,
    * Quickly pinpoint issues with quality of service (QoS), and
    * Quickly drill down on network performance problems to find the root cause

xStats
The SevOne xStats plug-in acquires bulk performance statics from SevOne xStats adapters that integrate with probes and EMS (element management systems) from network equipment vendors. The EMS provide management functions for the LTE, IMS and Ethernet backhaul components in networks. This unique approach avoids the overhead of directly polling or collecting performance data from individual network elements, and reduces the overhead of adds, moves, and changes as the number of network elements grow.

Flows and NetFlow
NetFlow is a push technology where the router sends call record information about each flow that crosses it. Each record contains header and volume information about each flow. Using this information, the SevOne provides crucial insight into bandwidth and performance. Going beyond simple network utilization statistics, SevOne delivers the visual details of who is talking to whom and who is using the most network resources.

While SevOne PAS appliances support NetFlow collection in a large network, users may choose to distribute load using the SevOne Dedicated NetFlow Collector (SevOne DNC) appliances. The SevOne DNC is designed to be a cost-effective way to collect flows for large networks, working transparently with SevOne PAS appliances to give users a single pane of glass view into their infrastructure.

IP SLA
Using Cisco's IP SLA network technology, SevOne can create and graph synthetic, active measurements of end-to-end network performance between any two points on the network. This provides a validation of network performance as measured by latency, jitter, packet loss and throughout, independent of the devices that transmit network traffic.

With SevOne IP SLA monitoring, you can:
    * Gather traffic statistics that cannot be observed externally,
    * Validate the performance of independent devices that transmit network traffic, and
    * Analyze the end user quality of experience (QoE).

Using the SevOne IP SLA monitoring, network managers are able to create thresholds and get insight hop-by-hop to isolate problems for true end-to-end performance measurement.

NBAR
NBAR (Network-Based Application Recognition) analyzes application traffic patterns in real time and discovers which applications are running on the network without using NetFlow. Using NBAR, you can discover what applications are running on the network and monitor their resource consumption, all with minimal impact and network overhead. This eases classification of voice and data traffic and serves to help set priority policies for traffic. You can set thresholds on individual protocols on a device and receive alerts when they go beyond the set threshold.

With SevOne NBAR, you can:
    * Track applications running on the network and their resource consumption,
    * Set thresholds for individual protocols on an interface,
    * Easily classify voice and video traffic, and
    * Police anomalous traffic.

QoS
SevOne helps you manage your network applications by closely monitoring any policy or class-based QoS on the network. Deploying QoS best practices without thoroughly understanding an application's WAN needs or configuration settings is difficult at best. That's why SevOne produces helpful QoS reports needed to properly manage the priorities of mission-critical real-time applications such as VoIP or transaction processing.

Combining NBAR's ability to define application in a granular fashion with SevOne QoS reports helps you to see your network policies in action. With SevOne QoS you can:
    * Throttle down low priority traffic during times when high priority traffic is competing for bandwidth,
    * Know when your provider's network is affecting the flow of traffic, and
    * Classify traffic in your MPLS network.

With SevOne QoS, you can optimize your QoS configuration to best match your infrastructure needs and serve your customers better by configuring alerts for your policies, classes, match statements and queues.