Join the Datanauts as they explore Apache Mesos, an open-source data center OS that abstracts compute, storage, and network to make it easier for applications to share resources.
The post Datanauts 013: Apache Mesos: A Data Center OS appeared first on Packet Pushers.
During my recent SDN workshops I encountered several networking engineers who use Nexus 1000V in their data center environment, and some of them claimed their organization decided to do so to ensure the separation of responsibilities between networking and virtualization teams.
There are many good reasons one would use Nexus 1000V, but the one above is definitely not one of them.
Read more ...It’s time for the next topic for the CCNA.
1.4 Describe the purpose and basic operation of the protocols in the OSI and TCP/IP models
There are tons of books written on the OSI and TCP/IP model so I won’t describe these models in depth here. What I will do is explain what you need to know at each level and explain how the real world works. We have two models, one from OSI and one from DOD.
In the real life everyone references the OSI model. I’ve never heard anyone reference the DOD model which doesn’t mean it doesn’t have its merits but everyone always uses the OSI model as a reference.
The OSI model has seven layers but people sometimes joke that layer 8 is financial and layer 9 is political.
Starting out with the physical layer, what you need to know is auto negotiation. Auto negotiation is good, hard coding speed and duplex will no doubt lead to ports that are hard coded on one side and auto on the other side to end up in half duplex. Gone are the days when auto negotiation wasn’t compatible and lead to misconfigured Continue reading
In the last blog, I briefly mentioned about PCE and how BGP-LS can be used as one of the ways to collect the topology information. In this blog we will explore more about PCE, the problems it tries to solve and different elements of PCE. But before we go any deeper, I do want to […]
The post PCE and PCEP Overview appeared first on Packet Pushers.
EMC continues to complicate its corporate structure.
Dell sees the PC is part of a comprehensive strategy to serve customers from the end point all the way through to data center infrastructure.
The post PCs To Play An Integral Role In A Combined Dell/EMC appeared first on Packet Pushers.
6WIND, a Packet Pushers sponsor, has been helping get the most networking performance from x86 hardware, making the acceleration software that other companies could use to make the most of their standard servers with multi-core CPUs and Linux. 6WIND has recently taken a further step, offering its own VNFs and virtual networking acceleration software packages to end users like you and me. For example, the Turbo Router and Turbo IPSEC appliances compete with virtual routers from Cisco and Brocade. 6WIND will be appearing on the Packet Pushers Priority Queue podcast near the end of October 2015.
The post 6WIND Offering Accelerated L3 Virtual Appliances appeared first on Packet Pushers.
Since January, CloudFlare has been running a small, private beta for DNSSEC. Starting today, the DNSSEC beta is open for everyone. To request access, email [email protected].
DNS is the system that lets your browser know which web server to connect to when you request to visit a website. It’s the underlying backbone of the usable internet, and yet, is vulnerable to man in the middle attacks.
In DNS, an attacker sitting in the middle of your connection to the internet can tell your browser to connect to any web server they’d like. Browsers trust any DNS records they receive as a response to a DNS query, because DNS, invented in 1983 before the public consumption of the Internet, does not perform any authentication.
There is a solution. It’s called DNSSEC and it adds cryptographic hashes and signatures for authenticating DNS records. You can read more about DNSSEC and how it works in a previous blog post.
The DNSSEC beta is open to all websites that use CloudFlare for DNS. If you want to be a part of our beta and be one of the first CloudFlare websites with DNSSEC, email us for beta Continue reading
SonicWALL and Dell Data Protection highlight today's Dell World launches.
ONF is back with its second event of the fall. Join this webinar on December 2nd to solve interoperability and operations issues.