DX Spectrum (formerly CA Spectrum) is network fault management software, from Broadcom company CA Technologies.
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Riverbed Modeler (discontinued)
Score 6.0 out of 10
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Riverbed Modeler provided a comprehensive development environment to model and analyze communication networks and distributed systems. The application has been sunsetted, and is no longer available.
As I said before, not only for Spectrum, but for any monitoring tool, you need to know what is critical in your environment and think about how exactly you should monitor and treat it. If you have done that, everything will work just fine.
Well Suited - Networking Monitoring
Less Appropriate - When you need to customize some monitoring and to update the version
Riverbed Modeler is well suited for wireless, wired, ZigBee, and Cisco networks. All these scenarios are efficiently designed and simulated using Riverbed Modeler, as all the devices are available in its object pallet, so we just need to drag and drop for the best scenario design in the given dimensions. The simulation results are around 95% accurate. However, it is not suited for data security, as data encryption algorithms are not available in Riverbed Modeler.
Riverbed Modeler needs to improve the scenarios of LAN MAN WAN, as the available scenarios under all of these follow a simple area structure that's not connected to the ISP when it comes to simulation. This generates dummy traffic.
Riverbed Modeler also needs to work on the selection of result sets so that, as with most designed networks, we can select any result parameter to show. All the parameters are displayed, whether they are relevant or not. It needs to display only relevant result parameters to select.
The back-end TCP/IP model needs more clarity to expose the structure to some changes.
Other tools I have used are more server/application-centric. CA Spectrum seems to work effectively and efficiently for network devices. Notification delays can be set to grant grace periods in case of network blips or false positives, which occur ALL the time. Other monitoring tools send event notifications immediately and would clear instantly, which while on-call can wake a technician for no reason.
The only thing comparable to OPNET is Packet Tracer, which is basic and very limited. Packet Tracer in terms of tool comparison between the two is like OPNET's stone-age relative.
It comes with a costly paid license, but simulating the network before actual deployment saves a lot of costs, in case after deployment we feel performance is not good and we need to change. This would waste a lot of money, but Riverbed saves this money.
Its OPNET GURU academic edition is available free of cost, but with limited functionality, which is good for students in maximum case. This will degrade our sale of Riverbed Modeler.
A one-time investment in Modeler saves a lot of cost regarding networks, topology, designing, and provides a lifetime license with updates.