Browsing Posts in vNetworking

Reading Time: 4 minutes Now that Network Virtualization and Software Defined Network are becoming mainstream, there is a new trend in networking: Software-Defined WAN (SD-WAN). What is SD-WAN? SD-WAN is best defined as traffic monitoring and management from physical devices to the application itself, capitalizing on flexibility and agility. This intelligent routing is abstracted into a virtual overlay, enabling a secured pooling of both private and public connections allowing for automation, centralized network control and real-time management across multiple links. 

Reading Time: 2 minutes Remote Direct Memory Access (RDMA) is an interesting way to improve network connections and bandwith by providing a direct memory access from the memory of one system  into that of another. Compared to the full TCP/IP stack, RDMA can be managed without involving either one’s operating system (OS) and this means saving host resources and speed-up the communication. RDMA permits high-throughput and low-latencynetworking, but more important is becoming a common feature on some network card, and also supported by different OSes and hypervisors.

Reading Time: 4 minutes VMware NSX-T Data Center is the next generation product that provides a scalable network virtualization and micro-segmentation platform for multi-hypervisor environments, container deployments and native workloads. It has not yet features parity with NSX-v, but the gap is closing faster and there are also several new features and capabilities available ONLY on NSX-T. And the product is growing faster: on June was release the NSX-T Data Center 2.2.0 and now there is the new NSX-T Data Center 2.3.0 release (see the release notes).

Reading Time: 3 minutes VMware NSX Data Center for vSphere is the new name of NSX-v and NSX-t for the on-prem case, and version 6 is actually referring to the specific edition for VMware vSphere that use the vCenter Server UI has the main UI also for all the NSX part. There are other NSX products, but VMware has just announced a new minor version for the vSphere related product: NSX Data Center for vSphere v6.4.2 it’s out. The release notes describe all the new features and improvement of this release:

Reading Time: 3 minutes Arrcus emerges from stealth and has launched and released its first product: ArcOS, an independent, open, Linux-based, hardware agnostic network operating system. ArcOS is a high-quality alternative to vertically integrated OEMs, to meet and exceed the modern smart network infrastructure requirements. ArcOS is a fully programmable, microservices-based network operating system built from first principles. Based on Debian Linux, it is an open system that can be easily integrated with other Linux distributions as well.

Reading Time: 3 minutes Runecast is a powerful tool to monitoring and check a vSphere environment and recently also for a VSAN environment. But it’s not over, actually there is a beta for the new version (Runecast version: 1.7.6 probably) that can analyze also NSX-V environments and this could be quite cool, considering the potentially complexity of a NSX infrastructure. I’ve tested the beta on a small lab, just to see how does it work.

Reading Time: 4 minutes Big Switch Networks announced that Big Cloud Fabric (BCF) now supports a robust ecosystem of the leading hyperconverged (HCI) solutions, including: VMware vSAN, Dell EMC ScaleIO, and Nutanix. Big Switch Networks is a company in the Software Defined Network (SDN) area with a clear declared mission: to bring network innovation to a broader audience, by delivering fit-for-purpose products based on hyperscale networking technologies.

Reading Time: 6 minutes VMware has released a new version of NSX-v, the NSX edition for vSphere environment. Note that NSX 6.4 is a new minor release, but has so many important enhancements, new features, and improvements that can be considered a new major release. The most interesting news are the support to the HTML5 vSphere Client (another little step to a complete adoption) and some new interesting features and capabilità in the distributed firewall. For more technical details on the new features, see this post.

Reading Time: 2 minutes Neil Anderson, from flackbox.com, has announced an interesting giveway to help you in the Cisco CCNA certification. The giveaway will end on January 13, 2018 11:00 pm ALMT.

Reading Time: 2 minutes After the release of VMware NSX-T v2.0 only three months ago, now VMware has released the new version: NSX-T v2.1, that will enable advanced networking and security across these emerging app architectures, just as it does for traditional 3-tier apps. More specifically, NSX-T 2.1 will serve as the networking and security platform for the recently announced VMware Pivotal Container Service (PKS), a Kubernetes solution jointly developed by VMware and Pivotal in collaboration with Google. NSX-T 2.1 will also introduce integration with the latest 2.0 release of Pivotal Cloud Foundry (PCF), serving as the networking and security engine behind PCF. In these environments, NSX-T will provide Layer […]

Reading Time: 14 minutes This is an article realized for StarWind blog and focused on the design and implementation of a ROBO infrastructure. See also the original post. Introduction The fabric of SAN (means Storage Area Network) with Fibre Channel solutions have always been a dedicated network, with dedicated components (like FC switches). But, starting with iSCSI and FCoE protocols, the storage fabric could now be shared with the traditional network infrastructure, because at least level 1 and 2 have a common Ethernet layer (for iSCSI also layer 3 and 4 are the same of TCP/IP networks).

Reading Time: 1 minute Neil Anderson, from Flackbox, has build an amazing free Cisco CCNA Lab Guide recently which can be used to pass the CCNA exam or as a configuration reference for Cisco routers and switches. There’s a few free guides online but they all cover old out of date exam topics and aren’t great quality, but this is guide really complete (350+ pages), up to date, with good quality and simple, which people can use completely for free.

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