SLA For Ethernet Networks

Is the Network meeting performance objectives? Ethernet and IP networks consist of any number of interconnected and complicated devices. The number of devices traffic transits vary from moment to moment as a result of a variety of network events. Unlike TDM networks where bandwidth is dedicated to real circuits, packet and cell networks transporting Ethernet and IP Services dynamically allocate bandwidth on shared network links. Should traffic demand exceed available link bandwidth, congestion occurs causing traffic slowdowns or even lost traffic. Congestion can be internment lasting milliseconds to hours.

Ethernet and IP now have traffic prioritization capabilities to grant privileged transport to identified traffic types if network switching equipment is capable of support prioritization and the switch setting are correct and operating. A persistent question of users and network operations is how well is the network operating? Quick, consistent transport of traffic across the network is very important. Customers are demanding Service Providers maintain minimum network performance. They formalize this with Service Level Agreements (SLA's). Also, Network Managers often establish minimum network performance parameters.

How does one ensure network performance? You must track and measure traffic transiting the entire network from customer interface to customer interface. CanogaView SEM's Performance Collection System (PCS) measures and aggregates network performance data provided by Canoga Perkins' Network Performance Assurance (NPA) software for Network Interface Devices. Performance data is aggregated by the PCS for presentation to Network Operations personnel and various provisioning and accounting systems.

Performance Collection System (PCS) Overview

Successful network performance management is more than making performance measurements. It includes the collection and intelligent dissemination and reporting of the test results. The Performance Collection System (PCS) is a CanogaView Smart Element Manager application for the administration, collection and distribution of network performance data.

PCS incorporates Three principle functions:

– Configuration of the Network Performance Assurance (NPA) feature on 9145 Network Interface Devices

– Collection of NPA Test Results and Statistics from 9145 NPA

– Transfer of compiled NPA Test Results and Statistics to higher order Network Management Systems, Provisioning System and Accounting Systems via a North Bound Interface.

Manual test configuration is only effective for very small, very simple networks. With up to 200 individual test sequences possible for each subscriber interface, test configuration management becomes daunting on even small networks. PCS automates 9145 test sequence configuration, NPA License management and downloading test configuration data to the 9145 with an easy to use GUI. Collecting test results from NIDs is configurable in PCS, allowing you to schedule collection times/intervals to best meet your requirements. PCS autonomously polls the NIDs for test results, automatically retries on failures, and alerts Network Control of difficulties.

PCS organizes results data for easy retrieval by Network Control personnel or higher level Network Management Systems and Accounting Systems. Customized North Bound Interface connects PCS to your system for disseminating test results. PCS is a CanogaView SEM application and runs on the CanogaView SEM Server. CanogaView SEM is a XML based Element Management System using a Web based user interface. User access to PCS is from any Browser (Internet Explorer, Mozilla FireFox…) on the Management Network. Multiple instances of CanogaView SEM and PCS provides application protection from data center and management network failures.

Network Performance Assurance (NPA) Feature Overview

Is the Network meeting performance objectives? Ethernet and IP networks consist of any number of interconnected and complicated devices. The number of devices traffic transits vary from moment to moment as a result of a variety of network events. Unlike TDM networks where bandwidth is dedicated to real circuits, packet and cell networks transporting Ethernet and IP Services dynamically allocate bandwidth on shared network links. Should traffic demand exceed available link bandwidth, congestion occurs causing traffic slowdowns or even lost traffic. Congestion can be internment lasting milliseconds to hours.

Ethernet and IP now have traffic prioritization capabilities to grant privileged transport to identified traffic types if network switching equipment is capable of support prioritization and the switch setting are correct and operating.

A persistent question of users and network operations is how well is the network operating? Quick, consistent transport of traffic across the network is very important. Customers are demanding Service Providers maintain minimum network performance. They formalize this with Service Level Agreements (SLA’s). Also, Network Managers often establish minimum network performance parameters.

How does one ensure network performance? You must track and measure traffic transiting the entire network from customer interface to customer interface. CanogaView SEM’s Performance Collection System (PCS) measures and aggregates network performance data provided by Canoga Perkins’ Network Performance Assurance (NPA) software for Network Interface Devices. Performance data is aggregated by the PCS for presentation to Network Operations personnel and various provisioning and accounting systems.