Posts in 2018
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Release New Features
Thursday, January 04, 2018 in Cisco Networking
Text can be bold, italic, or strikethrough. Links should be blue with no underlines (unless hovered over). There should be whitespace between paragraphs. There should be whitespace between paragraphs. There should be whitespace between paragraphs. …
Posts in 2017
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OpenStack Networking, Explanation for Humans
Wednesday, December 13, 2017 in Virtualization and Private Cloud
Long time ago I published an OpenStack Networking principles, you can find it here: - OpenStack Neutron and OVS (Open Virtual Switch) translated to the Network Engineers language - Open Virtual Switch (OVS) Deep Dive: How L2 Agent “wires” …
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On PaloAlto and NSX Integration
Friday, June 30, 2017 in SDN and Network Virtualization
The VM-Series firewall for VMware NSX is jointly developed by Palo Alto Networks and VMware. NetX APIs are used to integrate the Palo Alto Networks next-generation firewalls and Panorama with VMware ESXi servers. Before getting into the technical …
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Nuage Networks VSP Deep Dive
Saturday, June 24, 2017 in SDN and Network Virtualization
Ever since Cisco bought Insieme and created Cisco ACI, and VMware bought Nicira and created NSX, I’ve been intensively deep-diving and blogging about both these solutions, how they compare to each other and to some Open Source SDN solutions out …
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How to sell SDN
Saturday, June 24, 2017 in Playing Smart
The most important thing about presenting SDN to a potential Customer, and about how you need to focus your Presentation, and I cannot stress this enough: your entire speech needs to be adapted to your audience. 1. Networking and Security Department …
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What are Cisco Cloud Center (CliQr) and UCS Director, how to choose/integrate?
Friday, June 02, 2017 in Virtualization and Private Cloud
Before we get into the details about each technology, and how you should choose which one best fits in your environment, I would strongly advise you to sit down and think about what exactly you need, what would be your ideal target environment. While …
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How DevOps and Cloud raise the importance of System Integrator
Wednesday, May 31, 2017 in Playing Smart
System Integrators, buckle up, DevOps is coming, and if you play your cards right - your role is about to get crazy important. Let me start this post by telling a story. It’s a story that involves a stubborn customer, 3 big vendors and a Cloud. …
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Cisco ACI Unknown Unicast: Hardware Proxy vs Flooding Mode
Monday, May 22, 2017 in SDN and Network Virtualization
Before we start, lets once again make sure we fully understand what Bridge Domain is. The bridge domain can be compared to a giant distributed switch. Cisco ACI preserves the Layer 2 forwarding semantics even if the traffic is routed on the fabric. …
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What is NFVi or Cisco NFV Infrastructure, and where exactly does it "fit"?
Tuesday, April 11, 2017 in Virtualization and Private Cloud
Follow @SnarchsCOM First let’s establish the difference between the NFV and the VNF: VNF (Virtualized Network Function) refers to the implementation of a network function using software that is decoupled from the underlying hardware. It simply …
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Low Power Wide Area Networks for IoT: SigFox, LoRa, LTE-M, 5G LP-WAN
Thursday, February 02, 2017 in Playing Smart
[In collaboration with guest blogger Marc Espinosa] The important topic of connectivity protocols was discussed in our previous IoT post, it is time to dive deeper into the telecommunications protocols underneath. The fact is that the technologies …