OptiView XG Network Analysis Tablet - Key Use Case: Performance Testing | NETSCOUT

OptiView XG Network Analysis Tablet - Key Use Case: Performance Testing

OptiView XG enables Wi-Fi and wired network infrastructure troubleshooting by local technicians and engineers, giving them the portability to go anywhere – and the visibility they need – to solve problems down to the desktop. With automated discovery, mapping of the local network and multiple functions to isolate the root cause of infrastructure-related problems, OptiView XG helps distribute problem solving throughout your organization, making everyone more effective.

Core capabilities

  • Wireless Analysis – Integrated tools for deploying, troubleshooting and securing 802.11a/b/g/n/ac WLANs
  • Network Infrastructure Analysis – Automated discovery, mapping, analysis and guided troubleshooting of your network infrastructure
  • Traffic and Packet Analysis – The ONLY tablet with 10 Gbps "On the wire" analysis
  • Performance Testing – Conduct network assessments, validate new infrastructure and devices, test service provider SLAs and QoS, and troubleshoot problems from end to end, at up to a full line-rate of 10 Gbps

For Overview and General Information about the OptiView XG, see key use cases.

The wireless companion to nGeniusONE for full WLAN lifecycle management and troubleshooting network infrastructures

OptiView XG combines multiple functions and technologies in a unique tablet form factor providing engineers the mobility needed to connect, analyze and troubleshoot anywhere in the network – from the access layer to the data center and remote sites. Headquarters or data center engineers can access the analyzer remotely for collaborative troubleshooting or for direct analysis of the problem area when there is no on-site IT staff or instrumentation. Field engineers appreciate OptiView XG as their “one tool” – ideal for traveling to and troubleshooting remote locations.

  • Used with nGeniusONE, OptiView XG provides infrastructure diagnostics from the access layer to WAN to data center
  • Integrates the latest wired and wireless technologies with powerful dedicated hardware in a unique tablet form factor providing mobility to connect, analyze and solve network infrastructure problems anywhere on the network
  • Displays your network exactly the way you want to see it through intuitive, customizable dashboards and maps
  • Provides performance testing, 'on-the-wire' and 'in-the-air' automated analysis up to 10 Gbps
  • Enables proactive analysis by monitoring and analyzing the information you need before problems arise
  • Out-of-the-box and customizable reports and maps

Performance Testing - Highlights

  • Troubleshoot network bottlenecks, assess networks for new technology or application deployments, validate new architectures, and test service providers SLAs and QoS
  • Pair the OptiView XG with the OneTouch™ AT 10G Network Assistant test endpoint – A cost-effective way of instrumenting multiple points in the network with a 10G device for performance testing, troubleshooting and installation validation
  • Measures end-to-end network infrastructure performance in terms of bandwidth, latency, jitter, loss, QoS and availability up to 10 Gbps
  • Testing at operational speeds (less than line rate) in conjunction with Path Analysis reveals network bottlenecks
  • Windows Reflector Agent – Easily-downloadable software agent for instant deployment on PCs anywhere in your network, for network testing and troubleshooting where ever it is needed
  • Compliant with ITU (International Telecommunications Union) ITU-T Y.1564 standard for performance testing
  • Class-of-Service testing and multiple test streams (up to 8 simultaneous) ensures availability and consistency of QoS throughout your network, and whether carrier links are supporting QoS

Network Infrastructure Performance Testing

Wireless Infrastructure Discovery

The Network Performance Test feature (NPT) of the OptiView XG allows users to test and troubleshoot high performance links across wide area networks, campuses, or within data centers and to remote sites. Engineers managing enterprise or service provider networks now have a single tool for measuring network infrastructure performance and troubleshooting complex network problems. NPT quantifies the performance of the network in terms of bandwidth, latency, jitter and loss up to line-rate 10 Gbps, giving engineers solid data about the capabilities of their infrastructure and its ability to support current and future applications.

 

Service providers and system integrators can use OptiView XG to validate layer 2 services and provide "value added" support of customer enterprise networks, from troubleshooting performance problems to conducting network assessments and new technology rollouts, such as VoIP and video.

Enterprises can use OptiView XG's Network Performance Testing to:

  • Troubleshoot network infrastructure performance problems
  • Assess network performance prior to deployment of new services such as video or VoIP
  • Validate the performance of new infrastructure elements and critical links within their data center
  • Independently determine if their service providers are meeting Service Level Agreements (SLAs) and maintaining QoS end-to-end

 

Key Capabilities:

  • Find the location of performance bottlenecks with Graphical Path Analysis
  • Bi-directional testing, from operational levels (for troubleshooting) up to full line-rate 10 Gbps (for validation)
  • Programmable streams of up to eight simultaneous flows with independent upstream/downstream SLA parameters including Committed Information Rate, Committed Burst Size, Excess Information Rate, Excess Burst Rate, and Frame Sizes
  • Flexible Layer 2 and Layer 3 settings including source and destination MAC and IP addresses, VLAN settings, TOS with DSCP or IP precedence, UDP port number and frame contents
  • Complete setting of Service Acceptance Criteria limits for availability, throughput, frame loss, delay, and jitter (delay variation)
  • Thorough reporting with pass/fail indication based on Service Acceptance Criteria

 

OptiView XG

Network Performance Test User Interface


Path Analysis Testing Pinpoints Network Failure Points

While other tools can send traffic over the network, and may tell you there is a problem, only OptiView XG can test for problems AND show you the location of the issue. Graphical Path Analysis shows the complete layer 2 and layer 3 paths across your network, displaying the health of switches and routers along the path of the data flows in real time – while NPT tests are underway – allowing you to instantly see overloaded or errored interfaces, discarded packets, CPU and memory-utilization issues, or even devices rebooting. This allows instant diagnosis of bottlenecks along the data path for quick resolution.

OptiView XG

Graphical Path Analysis Pinpoints Network
Bottlenecks During Performance Tests

Conduct Network Assessments Before New Technology Rollouts

Use NPT's multi-stream capability to generate different flows of traffic with different QoS and rates to determine if your network can support new or additional traffic like VoIP and video.

OptiView XG - Detailed Results with Clear Pass/Fail Indicators

Detailed Results with Clear Pass/Fail Indicators

 
Validate and Troubleshoot Quality of Service /
Class of Service

The Network Performance Test features the ability to generate streams of various Layer 2 (VLAN priority) and Layer 3 (TOS with DSCP or TOS with Precedence) traffic, validating the ability of your network (and service provider's network) to maintain QoS from end to end. Generating different traffic rates at different QoS settings allows the testing of traffic prioritization, ensuring that high priority traffic is treated as such throughout your network.

OptiView XG

Validate QoS



Validate Service Provider SLAs

When applications are slow over internet or WAN links, the blame game is only just beginning. With NPT and OptiView XG, enterprises don't have to rely on service provider metrics, but can test and validate SLAs and net capacity directly. End the finger pointing and know you're getting what you paid for by generating your own performance reports.

OptiView XG

Test and validate SLAs

 

Validate Data Center Performance with Full-Duplex Testing at 10 Gbps

By pairing two OptiView XG's together, or with the OneTouch™ AT 10G Network Assistant, you can fully test 10 Gig links with independent upstream/downstream flow rates, up to full line-rate 10 Gbps. The independent management port allows complete control without impacting tests. You've invested a great deal in high-performance network hardware – ensure that you are getting the results you expected.

A "Good – Better – Best" strategy for instrumenting your network

Windows® Reflector agent – "Good"

Travelling to remote sites, whether across town or across the country, is time-consuming and inefficient – the more problem-solving engineers can do from their desk, the more effective they can be. When troubleshooting remote user-performance problems, you need deeper visibility into what the user is actually experiencing in order to get to root cause.

The OptiView XG Windows Reflector agent is an easily-downloadable software agent for instant deployment on PCs anywhere in your network, for performance testing and troubleshooting wherever it is needed. Simply direct your remote user to point their web browser at OptiView XG's IP address, then download and install the small footprint application. Then, target the user's PC with OptiView XG's Network Performance Test to get a fast reading of roundtrip throughput, packet loss, jitter, and latency. Combine that with Graphical Path Analysis to visually see where performance issues might be hiding.

The agent provides symmetric upstream/downstream flow rates up to approximately 900 Mbps to a PC connected via a 1 Gbps NIC. Actual performance can vary based on the performance of the client's operating system and TCP/IP stack. Importantly, the agent can also be used on PCs connected via Wi-Fi, allowing troubleshooting of performance through the wired AND wireless infrastructure.
Note: The Windows Reflector supports Windows 7, Windows 8, Windows 10 and Windows Server 2008 R2, both 32- and 64-bit editions.

Reflector

 

LinkRunner – "Better"

The LinkRunner™ AT 2000 with Reflector Option acts as a remote device for symmetric upstream/downstream flow rates up to line-rate 1 Gbps over copper or fiber. An economical alternative for hardware-based endpoints, using this tool as a hardware reflector at critical sites throughout your network provides an "always on" means of testing and troubleshooting performance and service provider SLAs anytime. Using LinkRunner provides a "known standard" instrument for performance testing that is not impacted by the performance of the client's operating system, or TCP/IP stack. Equipping remote sites with LinkRunner units to be used as needed for performance testing is good practice, but another benefit is that having them onsite also equips local frontline technicians with simple tools for solving user connectivity problems.

Much Better
 

OneTouch™ AT 10G Network Assistant – "Much Better"

The OneTouch™ AT 10G Network Assistant allows bi-directional testing (asymmetric, up to 4 separate, simultaneous streams) at up to full line-rate 10 Gig on copper or fiber. Whether used at 1G or 10G rates, bi-directional testing is essential for assessing a network's capacity for voice and video traffic. The OneTouch AT 10G provides a cost-effective way of instrumenting multiple points in the network with a 10G device for performance testing, network assessment, and validation of critical, high-performance links.

When not used for performance testing, the OneTouch AT 10G can be used by network technicians for basic troubleshooting of 10G links. The AutoTest feature completes an hour of testing in about one minute. An AutoTest is a set of tests tailored to your network, services, and applications. It can be simple with only a few tests or advanced consisting of dozens of tests. Once created, an AutoTest can be saved for quick and easy reuse later. Use it to establish best practices for consistent, faster, more productive troubleshooting and network acceptance testing.

The instrument comes with both copper (100/1000/10G) and fiber (1/10GBASE-SR, 850 nm multimode SFP+) network interfaces. Alternatively, different SFP+ modules may be used for different standards/distances (LR, LRM).

Specifications:
  • Battery Type: Rechargeable lithium battery pack
Temperature:
  • Operating: 0° C to 50° C (no battery installed)
  • Operating: 0° C to 40° C (lithium battery installed)
  • Charging: 0° C to 40° C
  • Storage: -40° C to 71° C
Safety: IEC/EN 61010-1
  • Operating altitude: 13,123 ft (4,000 m) 10,500 ft (3,200 m) with ac adapter
  • Storage altitude : 39,370 ft (12,000 m)
Much Better
 

OptiView XG – "Best"

A second OptiView XG provides the best performance overall as a test endpoint, with its capacity for eight bi-directional streams at up to 10 Gbps. When not used for performance testing, engineers at the remote site have the most powerful tool available for local wired and wireless troubleshooting, assessment, mapping and more.


Unmatched Network and Application Performance Analysis

OptiView XG is at home in the data center, with support for 10 GbE and virtualized servers; at the users' office supporting 802.11a/b/g/n/ac and application analysis; and with the switches and routers in between. Use it to find problems from your desk or take it with the data it collected to the trouble spot for first-hand analysis. Its unique troubleshooting system is based on proactive analysis, path analysis, and application-centric analysis, which provides expert guidance that automatically identifies the root cause of problems. No other tool combines powerful performance testing with in-depth troubleshooting and analysis.

More Flexible and Powerful than Other Testing Methods

Based on ITU-T Y.1564, the newest standard for testing real-world Ethernet performance, OptiView XG's NPT provides enhanced performance compared to older standards such as RFC 2544, including:

  • Faster—the LRPT option measures all key performance Service Level Criteria (SLC's)—availability, throughput, frame loss, delay, and delay variation (jitter)—in a single test instead of multiple independent tests.

  • Fixed Test Times—a single lost frame during an RFC 2544 throughput test requires it be run again, so a test may take many times its set length. ITU-T Y.1564 tests only need to run one time for a complete measurement.

  • More thorough—measures additional key Service Level Agreement (SLA) requirements including Excess Information and Excess Burst Rates (EIR/EBR), and availability. Measures delay and jitter on every frame in the test.

  • More flexible—supports multiple simultaneous flows with independent destinations, SLAs and SLCs, CoS and VLAN settings.

 

 
Measurement/Feature Basic Throughput Test RFC 2544 ITU-T Y.1564 (NPT)
Throughput
Loss
Latency  
Jitter    
Multiple Streams    
Class of Service Testing    
Asymmetric Link Testing    
Excess Information Rate    
Excess Burst Rate    
Traffic Policing    
Network Test Specifications
Compatible remote devices OptiView XG (up to 10 Gbps FDX with independent upstream/downstream flows); OneTouch AT 10G, LinkRunner AT 2000 with Reflector Option (up to 1Gbps FDX with symmetric upstream/downstream flows)
Test Configuration Each test may be made up of an unlimited number of suites which run sequentially. Each suite may measure a maximum of eight bi-directional test flows from one to eight endpoint devices (peer or reflector).
Service Level Agreement (SLA)
  • Committed Utilized Line Rate (ULR)
  • Excess Utilized Line Rate
  • Committed Information Rate (CIR)
  • Excess Information Rate
  • Committed Burst Size
  • Excess Burst Size
Service Acceptance Criteria (SAC)
  • Availability
  • Latency (Frame Transfer Delay)
  • Jitter (Frame Delay Variation)
  • Frame Loss Ratio

Separate values may be set for upstream and downstream flows when used with a peer endpoint (a second OptiView XG). The test may be configured to check for preservation of VLAN Priority and Class of Service markings.

Frame size User-defined fixed frame size up to 10,018 bytes or a sequence of specific frame sizes.
Layer 2 Frame Settings Destination MAC; VLAN ID number, priority, and tag protocol identifier.
Layer 3 Frame Settings TOS with DSCP or IP precedence; source IP address; UDP port number
Flow Options The duration of the performance test may be set to one of the pre-defined values ranging 1 minute to 24 hours. Intermediate test results may be produced on an interval ranging from 1 minute to 60 minutes.
Reported Results Test results are compared to the user-defined Service Acceptance Criteria with pass/fail status given with respect to these criteria. The user may set specific values for: Availability threshold (%), Latency threshold (msec), Jitter threshold (msec), and Frame Loss Ratio.
 
Ordering Information – Network Performance Test Peer
OPVXG-1T10G OneTouch AT 10G Network Assistant
Basic Traffic Generation

Assess network readiness for new deployments by determining the impact of a new application, or the addition of network users, by stressing your network with simulated traffic – up to full 10 Gbps.

Protocol type, frame size, frame rate, percentage utilization and number of frames to transmit are user configurable, along with the type of traffic: Broadcast, Multicast or Unicast.

Selectable protocols include: Benign Ethernet, Benign LLC 802.2, NetBEUI, Benign IP, IP ICMP Echo, IP UDP Echo, IP UDP Discard, IP UDP NFS and IP UDP NetBIOS. Selecting an IP protocol allows you to select Time to Live (TTL) parameters and ToS (QoS) parameters such as Minimum Delay, Maximum Throughput, Maximum Reliability, Minimum Monetary Cost and Maximum Security to ensure correct routing configurations.

OptiView XG

Traffic Generation - up to full 10 Gbps

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For more information about OptiView XG, visit enterprise.netscout.com/xg