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Data Center

Think Like Sherlock Holmes about Network Remediation

by asardell on ‎09-26-2017 06:49 AM (7,490 Views)

SLX Insight Provides Clues That Turn Puzzling Issues into “Elementary” Ones


SLX Insight is the architecture built into our SLX Portfolio that allows you to receive up-to-date information on traffic patterns, network states and interface statistics. When used with relevant applications, this gives you a keen sense of what’s going on with your data center network.


How Does This Work?


SLX Insight (documentation reference here) provides a virtualized environment to run your own application on an SLX platform. The architecture includes a dedicated analytics path and dedicated storage for a Guest VM (to host third-party applications), as well as data streaming capabilities (via gRPC; detailed with Insight here) within SLX platforms.  


This allows you to monitor, analyze and capture real time data from your network. Figure 1 provides a logical view of SLX Insight (highlighted blue in the circle) on an SLX platform.


Insight Blue e1.png



Figure 1: Logical View of Insight Architecture on the SLX Platform   


What Are the Benefits?


Without the need to use any additional hardware, Insight Architecture provides you:


  • A choice of applications (examples shown in Figure 1) to run in the Guest VM
  • Visibility into overlays (such as VPNs or VXLANs) or the network underlay (such as interfaces)
  • Real time monitoring and troubleshooting capabilities
  • Zero disruption to network traffic
  • Dedicated storage for the Guest VM, completely isolated from the System OS (SLX-OS)

 We intended SLX Insight as a way to give network operators the ability to be crack detectives--to the legendary ability of Sherlock himself--when it comes to solving crimes or other mischief happening on the network.


Sample Integrations with Third Party Tools


When SLX Insight was first introduced, we noted that it can integrate with not only Workflow Composer--providing a visibility-automation loop that helps ensure rapid provisioning and troubleshooting--but also a variety of other tools. The prepacked applications (inside the Guest VM) are:


  • Wireshark for troubleshooting, analysis and protocol adjustment
  • TCPDump to display and analyze TCP/IP and other packets being transmitted or received


And of course, we noted that many other monitoring, analytics and troubleshooting tools can be integrated into the Insight Architecture, building an ecosystem of telemetric possibilities that effectively give you the utmost in visibility into what’s happening on your network.


For example, last month we detailed the integration of Splunk Enterprise with SLX Telemetry Streaming. This allows you to collect, analyze and report on system characteristics such as CPU and Memory Usage, and also to generate reports on bidirectional traffic utilization across selected interfaces.


Excellent! I cried. "Elementary," said he.  


With the Insight Architecture and its associated ecosystem, including the Workflow Composer, an operator can become the “Sherlock Holmes of the Network.” This includes being able to discern on an ongoing basis, or in response to any anomaly:


  • Exact detail of the traffic flowing across the network
  • How to isolate possible problems very quickly, while ruling out “false clues”
  • How to capture, monitor, offload, or measure throughput in any location




Figure 2: Your Iconic Consulting Detective with SLX Insight 


Recent perfSonar Integration


Working with several forward-leaning customers, we’ve been providing tutorials on the installation and management of the SLX Insight Guest VM, along with installation and verification of third party packages. We’ve already discussed Wireshark, TCPDump, and Splunk Enterprise,




PerfSonar Measurement1.png


Figure 3: Performance Measurement in Multiple Sectors of the Network


With a perfSONAR instance running on each SLX network element, operators can carry out distributed performance testing and management. Errors are quickly identified and pinpointed to accelerate troubleshooting.


See Our Upcoming Videos

We’ll continue to provide videos and explanations, along with source code where appropriate, for a variety of the key tasks and benefits of the SLX Insight Architecture.

For example, these upcoming videos (and adjoining articles) will help you understand:


Call to Action


First of all, watch for the videos referenced above, and take advantage of the resources listed under Relevant Material below.


If you see tools referenced here that you would like integrated into SLX Insight, or even if you just want more information on our strategy in the direction of increasing visibility, contact your account representative or sales engineer.


If you are coming to NANOG 71 in San Jose next week, come see us at the Beer and Gear on Tuesday October 3.


Relevant Material


In addition to a variety of consulting services, we have reams of relevant material for you to peruse.