Xena Networks White Papers
Xena Networks White Papers
Xena offers a range of informative technical White Papers.
Click on the White Paper thumbnails to be redirected to a page where you can download our White Papers.
TCP turns the ‘best effort’ nature of IP networks into reliable communication services. Tests are however needed to ensure optimal performance.
This White Paper explains how RFC 6349 based TCP throughput tests and stress load tests give network operators valuable information on network TCP performance.
Time synchronization of test instruments far apart is required to make one-way latency measurements and multi-site protocol analysis.
This White Paper explains how synchronization of time in test instruments can be achieved with GPS, PTP and NTP. Xena TimeSynch can use all 3 to synchronize time for Xena Layer 2-3 testers.
G.fast is a next-gen DSL technology designed to seriously boost signal speeds to customer premises. Many network operators are now looking to deploy G.fast equipment so they can be first to market with this valuable service.
This White Paper explains how Xena test solutions can be used to verify G.fast performance and conformance with Broadband Forum ID-337.
Software-defined Wide Area Networks (SD-WANs) bring the ability to centrally manage WANs over a wide geographical area and are especially valuable for enterprises with large number of branches or data centers. This White Paper examines the challenges of testing and verifying SD-WAN solutions.
Xena offers a complete test solution for DDoS mitigation and network security with high-performance products and ample features.
Going beyond generating DDoS traffic, Xena’s solutions can help companies test their security products and operators test networks and detect flaws, thereby ensuring business continuity and preserve business integrity.
Testing with realistic network traffic places the device under test (DUT) in a realistic network environment and delivers authentic results.
Xena Networks provides an application emulation function and an up-to-date library of selected traffic captured in pcap file format so users can emulate live traffic and test products in a realistic network environment.
The automotive industry is finally going digital. Initiatives like the BroadR-Reach 100 Mbit/s Automotive Ethernet standard seek to minimize the weight and cost of electrical cabling – now the 3rd largest weight component.
Xena test solutions are ideal for verifying the effectiveness of these initiatives. Read more.
Data centers are hungry for bandwidth but strapped for cash. Adding more 10GE equipment is a short-term solution but upgrading to 40/100GE is expensive.
The solution seems to be the newly approved 25GE and 50GE rates. Xena offers test solutions for all these Gigabit Ethernet speeds – in a single test module – the M1QSFP28SFP28.
Explains how Xena is working with the Open Platform for NFV (OPNFV) community on the vSwitch Performance (VSPerf) project towards a generic architecture-agnostic vSwitch performance benchmarking and test framework.
This will serve as a basis for validating the suitability of different vSwitch implementations in a telco NFV deployment environment.
Understanding latency and jitter is essential for evaluating device and network performance.
This White Paper clarifies terms used in time measurement e.g. latency, jitter, inter-frame gap, latency resolution, speed mismatch, latency over time, and distribution and presents how Xena interprets and implements time measurements.
Some applications can tolerate traffic delays, jitter and a degree of traffic loss – others cannot.
Xena offers QoS validation solutions in accordance with RFC 2544 and Y.1564, as well as advanced statistics functions that help users track, analyze and troubleshoot QoS to maintain a high service quality guarantee.
Microbursts – where data packets are transmitted in rapid bursts – can lead to periods of full line-rate transmission that overflow packet buffers of the network stack.
This can seriously impact network performance but the problem is difficult to detect. Xena provides advanced microburst test solutions for Layer 2-7.
Different from deploying new NGFW into pre-production networks, when the firewalls are in fact up and running in the production networks, any upgrade should be handled carefully.
Xena offers effective and convincing test solutions for NGFW performance verification in a post-production environment for enterprises.
The solutions cover from modelled traffic with extreme performance stress testing to rich library for application emulation and capture-replay.
To rigorously test the performance of next generation firewalls (NGFWs), it is no longer enough to bombard them with dummy traffic.
That’s why Xena developed an advanced L5-7 traffic generation solution for emulating highly realistic traffic streams that can be scaled to millions of users – including a free library of up-to-date application traffic in pcap format.
Gigabit-capable Passive Optical Networks (GPON) support digital communication to end customers at rates up to 2.4 Gbps downstream and 1.2 Gbps (optionally 2.4 Gbps) upstream. A GPON requires active transmission equipment at its borders, and this equipment will of course need to be tested.
Verification of interoperability and conformance of the equipment is essential.
The new 2.5 & 5.0 Gigabit Ethernet standards promise up to 500% performance boosts over existing cabling. But how do you qualify and verify that windfall?
This Xena Networks White Paper examines the technical details of the new 2.5 & 5.0GE speeds and then presents Xena’s new M6RJ45N test module which can test both the new speeds plus 100Mbit/s, 1GE and 10GE.
Xena Advanced Layer 4 Replay (XAR) solution provides stateful Layer 4 replay based on payload data from pcap files, high scalability for performance verification, and preserve correlation information across TCP connections for true emulation.
Testing with realistic application emulation is about emulating network traffic that contains realistic traffic patterns and content.
This generates results that are far more accurate than using simulation or stateless Layer 2-3 blasting. Being able to analyze the results generated by “real” network testing is essential for providing guaranteed Quality-of-Service (QoS), and high degrees of Quality-of-Experience (QoE).