0

Cisco taps AMD to power a hyper-dense server for data centers, edge computing

Cisco this week broadened its server family with a high-density box aimed at handling compute intensive data center workloads and distributed edge computing environments.The Cisco C-Series C4200 multinode rack server is a 2RU box comprised of the C4200 chassis and C125 server nodes which Cisco says brings up to 128% higher processor core density and 33% more memory compared to its existing two-socket UCS M5 rack servers.  The C4200 chassis can house up to four server nodes.[ Now see who's developing quantum computers.] “As computing demand shifts from large, traditional data centers to include smaller, more distributed environments at the edge, the ability to mix form factors seamlessly in ‘micro data centers,’ and to manage and automate operations from the cloud becomes vitally important,” wrote Kaustubh Das, Cisco vice president of strategy and product development, storage in its Computing Systems Product Group in a blog about the new server.To read this article in full, please click here

0

Helm Breaks Free From Kubernetes Project, Joins CNCF

CNCF cited a recent Kubernetes application survey that found 64 percent of app developers, operators, and ecosystem tool developers were using Helm to manage applications on Kubernetes.

0

SDxCentral’s Weekly Roundup — June 1, 2018

Linux Foundation offers free course on open source networking; Apstra, Dell EMC, and Awnix deploy OpenSwitch

0

Link Propagation 121: All The Links Fit To Click

Welcome to Link Propagation, a Packet Pushers newsletter. Link Propagation is included in your free membership. Each week we hand-select the most relevant practitioner blog posts, tech news, and product announcements. We age them in oak barrels for up to seven days and then distill them using ancient craft techniques handed down by Tim Berners-Lee. […]

0

Living in Times of Digital Uncertainty: Are Control and Trust Compatible?

The Cambridge Analytica data misuse is the most recent high-profile incident to impact Internet trust. Trust – or the lack thereof – is the term used to describe much of the current state of the Internet. For years now, we have been hearing about a decline in user trust because of fears of surveillance, cybercrime, data breaches, crack downs on speech, or misuse of their data.

However, recently updated data from a recently released edition of CIGI’s annual survey on Trust seems to shatter commonly-held views on the state of trust and raise some novel questions. While the survey covers a wide range of issues from privacy to e-commerce and online habits, one particular result is rather striking:

Three quarters of respondents (73%) said that they agree with the statement “overall, I trust the Internet.” Last year only 56% said that. The trust was highest in China (91%) and India (90%).

This result appears to contradict the assumption that overall trust in the Internet is diminishing.

If, indeed, there is an overall increase in trust, then the first question we should ask is: what type of trust are we talking about?

• Are we referring to trust with regard to Continue reading

0

WISP Design – OSPF “Leapfrog” path for traffic engineering

Introduction

One challenge that every WISP owner or operator has faced is how to leverage unused bandwidth on a backup path to generate more revenue.

For networks that have migrated to MPLS and BGP, this is an easier problem to solve as there are tools that can be used in those protocols like communities or MPLS TE to help manage traffic and set policy.

However, many WISPs rely solely on OSPF and cost adjustment to attempt to influence traffic. Alternatively, trying to use policy routing can lead to a design that doesn’t failover or scale well.

Creating a bottleneck on a single path

WISPs that are OSPF routed will often have a primary path back to the Internet at one or more points in the network typically from a tower that aggregates multiple backhauls.

As more towers are added that rely on this path, it can create a bottleneck while other paths are unused.

Creating an alternate best path by leapfrogging another router

One way to solve this problem is to use VLANs to create another subnet for OSPF to form an adjacency.

By tagging the VLAN from Tower 6 through Tower 3 and into Tower 4, a new path Continue reading

0

WISP Design – OSPF “Leapfrog” path for traffic engineering

Introduction

One challenge that every WISP owner or operator has faced is how to leverage unused bandwidth on a backup path to generate more revenue.

For networks that have migrated to MPLS and BGP, this is an easier problem to solve as there are tools that can be used in those protocols like communities or MPLS TE to help manage traffic and set policy.

However, many WISPs rely solely on OSPF and cost adjustment to attempt to influence traffic. Alternatively, trying to use policy routing can lead to a design that doesn’t failover or scale well.

Creating a bottleneck on a single path

WISPs that are OSPF routed will often have a primary path back to the Internet at one or more points in the network typically from a tower that aggregates multiple backhauls.

As more towers are added that rely on this path, it can create a bottleneck while other paths are unused.

Creating an alternate best path by leapfrogging another router

One way to solve this problem is to use VLANs to create another subnet for OSPF to form an adjacency.

By tagging the VLAN from Tower 6 through Tower 3 and into Tower 4, a new path Continue reading

0

AI for IT: Who Will Lead the Charge for a Standard?

0

Intent-Based Networking’s True Intent Revealed

0

Show 392: Debating The Value Of Expert Certifications

Continue reading

0

Install Netmiko on Windows

Netmiko develop by kirk Byers is open source python library  based on Paramiko which simplifies SSH management to network devices .

Netmiko library  makes task to automate . Its very tedious to find out the procedure to install Netmiko in Windows enviornment.Let’s make out task simple :-

Steps:

• Install Anaconda ( https://www.anaconda.com/download/)
• From the Anaconda shell, run “conda install paramiko”.
• From the Anaconda shell, run “pip install scp”.
• Install git for windows (https://www.git-scm.com/downloads)
• Clone Netmiko from Git Bash Window (https://github.com/ktbyers/netmiko).
• Change directory to netmiko.
• Run  python setup.py install from Git Bash Window
• Check on Python console to confirm the availabilty of paramiko and netmiko library

Its done.. Enjoy automating tasks !!!!

 

 

0

Install Netmiko on Windows

Netmiko develop by kirk Byers is open source python library  based on Paramiko which simplifies SSH management to network devices . Netmiko library  makes task to automate . Its very tedious to find out the procedure to install Netmiko in Windows enviornment.Let’s make out task simple :- Steps: Install Anaconda ( https://www.anaconda.com/download/) From the Anaconda […]

0

From the Trenches: Rampant MacGyver-ism

Here’s a response I got from Simon Milhomme on my Why Is Network Automation So Hard article:

Read more ...

0

ForkBase: an efficient storage engine for blockchain and forkable applications

ForkBase: an efficient storage engine for blockchain and forkable applications Wang et al., arXiv’18

ForkBase is a data storage system designed to support applications that need a combination of data versioning, forking, and tamper proofing. The prime example being blockchain systems, but this could also include collaborative applications such as GoogleDocs. Today for example Ethereum and HyperLedger build their data structures directly on top of a key-value store. ForkBase seeks to push these properties down into the storage layer instead:

One direct benefit is that it reduces development efforts for applications requiring any combination of these features. Another benefit is that it helps applications generalize better by providing additional features, such as efficient historical queries, at no extra cost. Finally, the storage engine can exploit performance optimization that is hard to achieve at the application layer.

Essentially what we end up with is a key-value store with native support for versioning, forking, and tamper evidence, built on top of an underlying object storage system. At the core of ForkBase is a novel index structure called a POS-Tree (pattern-oriented-split tree).

The ForkBase stack

From the bottom-up, ForkBase comprises a chunk storage layer that performs chunking and deduplication, a Continue reading

0

Today we mitigated 1.1.1.1

0

AMD’s EPYC server encryption is the latest security system to fall

It’s a good thing AMD had the sense not to rub Intel’s nose in the Meltdown/Spectre vulnerability, because it would be getting it right back for this one: Researchers from the Fraunhofer Institute for Applied and Integrated Safety in Germany have published a paper detailing how to compromise a virtual machine encrypted by AMD's Secure Encrypted Virtualization (SEV).The news is a bit of a downer for AMD, since it just added Cisco to its list of customers for the EPYC processor. Cisco announced today plans to use EPYC in its density-optimized Cisco UCS C4200 Series Rack Server Chassis and the Cisco UCS C125 M5 Rack Server Node.To read this article in full, please click here

0

AMD’s EPYC server encryption is the latest security system to fall

It’s a good thing AMD had the sense not to rub Intel’s nose in the Meltdown/Spectre vulnerability, because it would be getting it right back for this one: Researchers from the Fraunhofer Institute for Applied and Integrated Safety in Germany have published a paper detailing how to compromise a virtual machine encrypted by AMD's Secure Encrypted Virtualization (SEV).The news is a bit of a downer for AMD, since it just added Cisco to its list of customers for the EPYC processor. Cisco announced today plans to use EPYC in its density-optimized Cisco UCS C4200 Series Rack Server Chassis and the Cisco UCS C125 M5 Rack Server Node.To read this article in full, please click here

0

AMD’s Epyc server encryption is the latest security system to fall

It’s a good thing AMD had the sense not to rub Intel’s nose in the Meltdown/Spectre vulnerability, because it would be getting it right back for this one: Researchers from the Fraunhofer Institute for Applied and Integrated Safety in Germany have published a paper detailing how to compromise a virtual machine encrypted by AMD's Secure Encrypted Virtualization (SEV).The news is a bit of a downer for AMD, since it just added Cisco to its list of customers for the Epyc processor. Cisco announced today plans to use Epyc in its density-optimized Cisco UCS C4200 Series Rack Server Chassis and the Cisco UCS C125 M5 Rack Server Node.To read this article in full, please click here

0

Is open source software a network security risk?

Networks are changing. More and more we’re hearing terms like whitebox, britebox, disaggregation, NOS, commodity hardware and open source when we talk about the future of networking. Since you’re reading this on the Cumulus Networks blog, I’ll assume you get that and spare you a description of these terms here. If you do want a crash course on network disaggregation and how it relates to orchestration/SDN, check out my previous post on the Packet Pushers blog.

With that bit of housekeeping out of the way, let’s dig right into today’s topic: open source software security.

First, why does security matter? If you’re like most network engineers, your primary goal typically is to get bits of data from one place to another. Anything that interferes with the free flow of packets and frames is a potential problem. So the goals of security can at first appear contrary to those of the network. Raise your hand if you’ve ever been frustrated by a firewall rule or some seemingly arcane security policy!

Unfortunately, we no longer have the luxury of ignoring security. Today’s network is one of the most crucial pieces of IT infrastructure for any organization and for the economies we operate in. Continue reading

0

FBI Blames North Korea for Malware, Kaspersky Lawsuits Dismissed

The two malware families target U.S. media, aerospace, financial, and critical infrastructure sectors’ networks.