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From the CEO of Entuity

Michael Jannery

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Top Stories by Michael Jannery

Will Avaya Redefine Software Defined Networking (SDN)? Avaya’s belated entry into the SDN arena is intriguing; they combine late entry with a new appliance – the Open Networking Adapter (ONA).  The ONA being an Open vSwitch in a box, rather than its usual deployment as part of a server virtualization installation.  The idea of providing a small form-factor, low cost, SDN capable switch is appealing in that it allows easy extension of the SDN management domain to individual appliances – allowing zero-touch provisioning of security, QoS, etc. One question that springs to mind is why invest in embedded physical SDN vSwitches which sit in-line between each and every appliance and their corresponding access ports?  Why not simply apply the appropriate SDN configuration to the access switch on a per-port basis (assuming the access switch is SDN capable – of which there ar... (more)

Have It Your Way By @MJannery | @CloudExpo [#Cloud]

It’s always been my philosophy that we should make it as easy as possible for our prospects to write us checks.  Sounds flippant, but I believe it is sound business philosophy. It’s been interesting to me to see how customers have wanted to buy infrastructure software, and how it has changed over the years. Back in the ’90s and early 2000’s, most network management vendors charged for their software per interface or per port, and we did as well.  Around 2004 and 2005, we started receiving requests for device-based pricing, since it was difficult for end users to know just how man... (more)

Scaling with Distributed Pollers By @MJannery | @CloudExpo [#SDN #Cloud]

Enterprise in Disguise - Scaling with Distributed Pollers Not all network management solutions are alike, even though they may sound that way sometimes. A sure sign of a network management tool trying to pass itself off as an enterprise solution is when it implements distributed polling as a way to scale. These systems scale server capacity by adding distributed pollers, each sharing a portion of the overall CPU load. But any network monitoring architect can tell you that the bottleneck in infrastructure management is I/O to the database. Having multiple pollers simultaneously se... (more)

Performance Management 101 By @MJannery | @CloudExpo [#SDN #Cloud]

I've written other posts on some of the basic disciplines of management, including (so far) inventory and discovery as well as event management, and how these come in many forms and levels of implementation depending on the network management system. Same thing with performance management. Let's take a look. There are two main approaches to performance: elemental and application. Elemental Performance: Measurements in this area relate to the performance of the devices themselves: is data (packet) throughput what is expected? Application Performance: Management of application perfo... (more)

Culture Shock By @MJannery | @CloudExpo [#SDN #Cloud]

When the melting pot boils down to it, our network is its own culture, with recurring traffic patterns, similar end users, and equipment named after inside jokes only your company will understand.  Just like living within your own culture, it's important to not only understand HOW patterns develop, but WHY as well. When troubleshooting a network, it's important to know what tasks it performs on a daily basis. Denise Fishburne, a 30 year network engineer, highlights three areas to consider when finding a problem in the network. The article was a quick read, but the points she argu... (more)