The Essentials of Ethernet Service Activation 5. RFC 6349 Fusion TrueSpeed VNFTM Layer 4 TCP Throughput

5. RFC 6349 Fusion TrueSpeed VNF Layer 4 TCP Throughput Global growth in communications and data services is driving increasing demand for Ethernet. As businesses and consumers demand more and more data, the pressure is on service providers (SP) to supply reliable Ethernet with the capacity for growth – and to do it quickly. Customers want easy, well-priced access to reliable high-speed, cloud-based data services such as streaming, Internet of Things, and next-generation networks. At the same time, service providers are keen to supply new services—and benefit from new, growing revenues. To capitalize...

5. RFC 6349 Fusion TrueSpeed VNF Layer 4 TCP Throughput Ethernet Business Service Network Topology and Test Points Ethernet Network Customer Equipment Customer Equipment End to End Test with Portables Portable to Switch using LBM/LBR In the diagram above, the “local” T-BERD/MTS is represented on the left side and the “remote” T-BERD/MTS is on the right side. The most common service activation use case is a loop-back of the remote device. In this case, the remote device will be the handheld T-BERD/MTS device. Fusion TrueSpeed VNF Components and Benefits The following table describes the distinct...

5. RFC 6349 Fusion TrueSpeed VNF Layer 4 TCP Throughput Service Activation Test Description VIAVI Advantage Fusion TrueSpeed VNF is a one-button RFC 6349 implementation Interoperable between • Fusion TrueSpeed VNF runs on instruments VIAVI instruments and at rates up to 10 Gbps, and can be hosted on VNFs VNFs such as Windows and Linux as well as actual network elements TCP Doctor - expert diag- • RFC 6349 defines the procedure and metrics nosis of test results of a TCP throughput test; Fusion TrueSpeed VNF uses proprietary expert knowledge to decode the results into actionable diagnoses Integrated...

5. RFC 6349 Fusion TrueSpeed VNF Layer 4 TCP Throughput The user must simply enter the IP address of the remote TCP instrument (or VNF) and enter the target CIR to execute the RFC 6349 tests as shown in the screenshot below. Upon test completion, a simple dashboard result is presented to the user and a detailed report is prepared on the instrument or even stored centrally on a VNF server (see Centralized Reporting in subsequent section). Interoperable with VIAVI Instruments and VNFs Fusion TrueSpeed VNF can be executed between VIAVI physical instruments and at the time of this publication, the...

5. RFC 6349 Fusion TrueSpeed VNF Layer 4 TCP Throughput TCP Doctor Diagnoses RFC 6349 defines the procedure and metrics of a TCP throughput test with a feature called the “TCP Doctor.” It uses proprietary expert knowledge to decode the results into actionable diagnoses. Fusion TrueSpeed VNF provides an easy to understand diagnosis of poor TCP performance problems on both the instrument and VNF products. For example, “down-shifts” in network speed refer to situations where a higher speed LAN connection is transported over a lower speed WAN. In the following case, the enterprise data center LAN...

The example below shows that with the integrated Fusion TrueSpeed VNF traffic shaping function, the network provider could show a similar result for Unshaped traffic (left side) and a perfect result for Shaped traffic (right side). Moreover, the unshaped / shaped test is all part of the Fusion TrueSpeed VNF “one button" approach to TCP testing. The shaping tests can be configured to automatically execute during the single-test chain of execution. Fusion TrueSpeed VNF is a server-based RFC 6349 solution and enables centralized test configuration, execution, and reporting. Centralized reporting...

5. RFC 6349 Fusion TrueSpeed VNF Layer 4 TCP Throughput When the originating TCP client is an end-user PC (Windows or Linux OS), the report contains information regarding the PC hardware configuration as well as CPU/process level utilization. This is an enormous benefit to the network operations team since it can prove that TCP performance issues may be due to the end customer's PC-level processing constraints. In addition, because the reporting is centralized, an operator can easily share the information among functional groups and archive reports for future reference as shown below (for cases...