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Category Archives for "Networking"

Cisco continues its network-based security strategy by moving to acquire Observable Networks

Over the past few years Cisco has changed the face of its security business. What was once a struggling concern is now the fastest-growing part of Cisco. How did the company do this? Part of the rebirth of Cisco security can be traced to a change in focus, away from point products to a more data-driven model. Big data, analytics and machine learning have been hot topics in IT, and Cisco has gotten religion in this area and applied it masterfully to its security business.Today, Cisco added to that when it announced its intent to acquire privately held Observable Networks. The St. Louis-based company provides dynamic network behavior monitoring to help security teams find anomalies that could indicate a breach. The product captures data and analyzes it to gain situational awareness of all users, devices and traffic, not only on a company’s network, but also out to the cloud, with support for both Amazon Web Services and Microsoft Azure.To read this article in full or to leave a comment, please click here

Cisco continues to shift its security strategy by moving to acquire Observable Networks

Over the past few years Cisco has changed the face of its security business. What was once a struggling concern is now the fastest-growing part of Cisco. How did the company do this? Part of the rebirth of Cisco security can be traced to a change in focus, away from point products to a more data-driven model. Big data, analytics and machine learning have been hot topics in IT, and Cisco has gotten religion in this area and applied it masterfully to its security business.Today, Cisco added to that when it announced its intent to acquire privately held Observable Networks. The St. Louis-based company provides dynamic network behavior monitoring to help security teams find anomalies that could indicate a breach. The product captures data and analyzes it to gain situational awareness of all users, devices and traffic, not only on a company’s network, but also out to the cloud, with support for both Amazon Web Services and Microsoft Azure.To read this article in full or to leave a comment, please click here

IBM reorgs services division around Watson and A.I.

IBM has revamped and restructured its services division to provide greater emphasis on its Watson platform and artificial intelligence.IBM has been retrenching around Watson, a series of cognitive applications and A.I. applications in one coherent platform, for the last few years as traditional sales of mainframe hardware and software continue to dry up.Bart van den Daele, general manager of IBM Global Technology Services in Europe, told Bloomberg that the new A.I.-centric services will help IBM’s customers minimize disruptions such as server outages or other malfunctions by predicting problems before they occur and taking corrective action, such as adding cloud capacity or rerouting network traffic around bottlenecks.To read this article in full or to leave a comment, please click here

IBM reorgs services division around Watson and AI

IBM has revamped and restructured its services division to provide greater emphasis on its Watson platform and artificial intelligence (AI).IBM has been retrenching around Watson, a series of cognitive applications and AI applications in one coherent platform, for the last few years as traditional sales of mainframe hardware and software continue to dry up.Bart van den Daele, general manager of IBM Global Technology Services in Europe, told Bloomberg that the new AI-centric services will help IBM’s customers minimize disruptions such as server outages or other malfunctions by predicting problems before they occur and taking corrective action, such as adding cloud capacity or rerouting network traffic around bottlenecks.To read this article in full or to leave a comment, please click here

IBM reorgs services division around Watson and A.I.

IBM has revamped and restructured its services division to provide greater emphasis on its Watson platform and artificial intelligence.IBM has been retrenching around Watson, a series of cognitive applications and A.I. applications in one coherent platform, for the last few years as traditional sales of mainframe hardware and software continue to dry up.Bart van den Daele, general manager of IBM Global Technology Services in Europe, told Bloomberg that the new A.I.-centric services will help IBM’s customers minimize disruptions such as server outages or other malfunctions by predicting problems before they occur and taking corrective action, such as adding cloud capacity or rerouting network traffic around bottlenecks.To read this article in full or to leave a comment, please click here

IBM reorgs services division around Watson and AI

IBM has revamped and restructured its services division to provide greater emphasis on its Watson platform and artificial intelligence (AI).IBM has been retrenching around Watson, a series of cognitive applications and AI applications in one coherent platform, for the last few years as traditional sales of mainframe hardware and software continue to dry up.Bart van den Daele, general manager of IBM Global Technology Services in Europe, told Bloomberg that the new AI-centric services will help IBM’s customers minimize disruptions such as server outages or other malfunctions by predicting problems before they occur and taking corrective action, such as adding cloud capacity or rerouting network traffic around bottlenecks.To read this article in full or to leave a comment, please click here

Networking Challenges in OpenStack Clouds

Networking Challenges in OpenStack Clouds Did you decided that it is time to implement OpenStack to build your Cloud? Have you tested in the lab? Evaluated many distributions available and hired specialized OpenStack resources? However, when the environment goes into production, Neutron is not integrating with the physical network? If the above story closely resembles what you have faced, this... Read more →

Networking Challenges in OpenStack Clouds

Did you decided that is time to implement OpenStack to build your Cloud? Have you tested in the lab? Evaluated many distributions available and hired specialized OpenStack resources? However, when the environment goes into production, Neutron is not integrating with the physical network?

If the above story closely resembles what you have faced, this post will unconceal the many challenges of Networking with any OpenStack distribution and how VMware NSX is the missing piece for your Cloud.

Networking and Security Challenges with OpenStack

Since its creation, the biggest challenges of OpenStack Clouds implementations are automation, integration and orchestration of the required networking and security components at the physical infrastructure layer. The main difficulty is that these environments are extremely heterogeneous and most of the devices do not have an open and programmable interface for configuration and, thus, the initial way of running OpenStack was to pre-provisioning the network manually and only use basics functionalities when implementing security services.

With the rise of Network Virtualization solutions and evolution of Open vSwitch, some of these challenges were solved, making it possible to create an abstraction layer from the physical elements of infrastructure and automate the virtual network through the programmable interface Continue reading

Linux 4.11 kernel extends packet sampling support

Linux 4.11 on Linux Kernel Newbies describes the features added in the April 30, 2017 release. Of particular interest is the new netlink sampling channel:
Introduce psample, a general way for kernel modules to sample packets, without being tied to any specific subsystem. This netlink channel can be used by tc, iptables, etc. and allow to standardize packet sampling in the kernel commit
The psample netlink channel delivers sampled packet headers along with associated metadata from the Linux kernel to user space. The psample fields map directly into sFlow Version 5 sampled_header export structures:

netlink psamplesFlowDescription
PSAMPLE_ATTR_IIFINDEXinputInterface packet was received on.
PSAMPLE_ATTR_OIFINDEXoutputInterface packet was sent on.
PSAMPLE_ATTR_SAMPLE_GROUPdata sourceThe location within network device that generated packet sample.
PSAMPLE_ATTR_GROUP_SEQdropsNumber of times that the sFlow agent detected that a packet marked to be sampled was dropped due to lack of resources. Agent calculates drops by tracking discontinuities in PSAMPLE_ATTR_GROUP_SEQ
PSAMPLE_ATTR_SAMPLE_RATEsampling_rateThe Sampling Rate specifies the ratio of packets observed at the Data Source to the samples generated. For example a sampling rate of 100 specifies that, on Continue reading