It’s time to move away from SNMP and CLI and use Model-Driven Telemetry
Traditional features such as SNMP, CLI, and Syslog, used for collecting operational statistics from a network, have several restrictions due to the growth of the objects like IoT devices and cloud based applications. SNMP uses the pull model when retrieving data from a switch. This model cannot scale for today’s high-density platforms, and offers very […]
Boring is the New Awesome
The core principle of model-driven telemetry is super simple: as much usable data out of the network as fast as possible. The implementation is also pretty subtle: a push mechanism, data models, open-source encodings. In fact, it’s all so simple and subtle that some folks look under the hood and say, “so what?” To that, […]
Oh, How Far We’ve Come in Building Cloud-Scale Networking
It’s been a year since I wrote this blog detailing our software innovations aimed at helping Service Providers address the ever-increasing challenges imposed by digitization. IOS XR for cloud-scale networking has really taken flight since then and I am proud to share with you some highlights from the journey thus far. Our strategy is essentially […]
What’s So Special About Model-Driven Telemetry?
Telemetry and analytics are all the rage in networking today. The industry is abuzz with the potential unlocked by streaming vast quantities of operational data. But what’s so special about “model-driven” telemetry? Models enable networking devices to precisely describe their capabilities to the outside world: what kind of data they expose (e.g. interfaces statistics, configuration […]
The limits of SNMP
Not “New Data” But “New Ways of Getting Data” Model-driven telemetry has been one of the most fun projects I’ve worked on in a long time. Right from the start, we worked hand-in-hand with customers to identify their biggest pain points when it came to network operational data. To my surprise, the primary ask was […]
Is SNMP here forever or could it vanish sooner than expected?
The first SNMP release came out in 1988. 28 years later, SNMP is still around… Will this still be the case in 10 years from now? Difficult to say but the odds are lower these days. Why are we predicting SNMP could go away? If you’re already savvy about SNMP, check out this blog for […]
Telemetry & Gaining Web Scale Operational Efficiency – Is it a Myth or Reality?
We can’t express how excited we were when Cisco was asked to sponsor and participate in an independent event, hosted by Tech Field Day, which invited experts from NetFlix, Google, eBay, and SignalFX to discuss the technical challenges some of these web scale providers face and the innovations they have helped drive in the industry […]
It’s Not The Network
All too often we networkers spend our time defending the network not only from security threats but from blame as the root cause (actual or perceived) of performance problems. The network is guilty until proven innocent. So how do we counter these arguments, put the issue to rest, and uphold the integrity of the network? […]
The ISR 4000 Series – One Platform to Rule Them All
This week Cisco announced an entirely new approach to delivering rich services to the Enterprise branch office with the introduction of the ISR 4000 Series. For those folks paying attention...