Using iTerm2 with Cisco VIRL
I love using VIRL to do quick self-check of a config, personal education, and learning the behavior of particular features. I also love using the iTerm2 Terminal Emulator on the Mac. Unfortunately, it isn’t obvious how to make the two play well together. I have had to re-educate myself on this over and over again as I get new computers, mess up my settings and do certain upgrades. I’m pretty sure I copied some of this configuration and the script that I will share from somewhere. So if this looks familiar, reach out to me and I will link back to the source.
This post meant to both share the config and caveats with others as well as to document the nuances for my future reference. In short, there is a standard configuration and a custom configuration for the terminal settings in VIRL’s VMMaestro. These are found in “VMMaestro -> Preferences.”
These settings control whether the built-in (VMMaestro’s client) is used or an external terminal client should be used. I much prefer an external client and iTerm2 is my current client of choice. To eliminate the need of manually launching and connecting, I have customized the Applescript code found below. Continue reading
SD-Access ( Fabric Network, Automation and Analytics LAN ) – Campus Networks
Today I am going to talk about new generation technology which Cisco launches in the LAN Campus network. The Next generation is dedicated to the Software defined network and thats what Cisco takes this approach to the LAN network as well with orchestration. Cisco put the pillars and made a architecture around it which includes - Campus Fabric Network, Automation, Authentication and Analytics. All these features are built into the SD-Access technology and will going to replace the traditional approach of Campus Network.
I knew you have some questions around it like
How traffic flows in Campus Network?
What and how fabric works?
Is there VLAN approach works?
Do we need to have SVIs ?
Well take a look into SD-Access approach you will come to know what approach Cisco takes to make it successful in the Campus
SD-Access = Campus Fabric+ DNA Center
Campus Fabric:
Campus Fabric have these three protocols works together to make it excellent way to communicate.
I knew you have some questions around it like
How traffic flows in Campus Network?
What and how fabric works?
Is there VLAN approach works?
Do we need to have SVIs ?
Well take a look into SD-Access approach you will come to know what approach Cisco takes to make it successful in the Campus
SD-Access = Campus Fabric+ DNA Center
Campus Fabric:
Campus Fabric have these three protocols works together to make it excellent way to communicate.
- LISP- Location/Identifier Seperation Protocol- Control Plane
- VXLAN- Virtual Extensible LAN - Data Plane
- Cisco Trustsec- Segmented Tags
I will explain all these protocols one by one in later articles and then i will come up with the solution with Continue reading
Worth Reading: The next generation of whois
The post Worth Reading: The next generation of whois appeared first on rule 11 reader.
IETF Journal July 2017 Issue Available Online Now
The July 2017 issue of the IETF Journal is now online at http://www.ietfjournal.org/journal-issues/july-2017/. With IETF 99 in Prague just over one week away, this is the perfect time to get caught up on what's been happening in the world of Internet standards lately.
Megan Kruse
Security for Cloud and IoT is a Growing Concern for IT and Executives
Global cloud security spend predicted to hit $3.5B by 2021.
API Security Startup Elastic Beam Uses AI to Block Attacks
The company is likely an acquisition target.
SDxCentral Weekly News Roundup — July 7, 2017
China Telecom and Ericsson launch an IoT platform; QualiTest Group acquires Experior Group.
Apple Engineers Founded SnapRoute, Which Now Helps AT&T
Nick McKeown helped SnapRoute get off the ground.
Kubernetes, Swarm, and Mesos Central in Container Orchestration Space
Kubernetes may have the most users, but it's not considered the de facto standard.
WISP/FISP Design – Building your future MPLS network with whitebox switching.
The role of whitebox in a WISP/FISP MPLS core
Whitebox, if you aren’t familiar with it, is the idea of separating the network operating system and switching hardware into commodity elements that can be purchased separately. There was a good overview on whitebox in this StubArea51.net article a while back if you’re looking for some background.
Lately, in my work for IP ArchiTechs, I’ve had a number of clients interested in deploying IP Infusion with either Dell, Agema or Edge Core switches to build an MPLS core architecture in lieu of an L2 ring deployment via ERPs. Add to that a production deployment of Cumulus Linux and Edge Core that I’ve been working on building out and it’s been a great year for whitebox.
There are a number of articles written that extoll the virtues of whitebox for web scale companies, large service providers and big enterprises. However, not much has been written on how whitebox can help smaller Tier 2 and 3 ISPs – especially Wireless ISPs (WISPs) and Fiber ISPs (FISPs).
And the line between those types of ISPs gets more blurry by the day as WISPs are heavily getting into fiber and FISPs are Continue reading
WISP/FISP Design – Building your future MPLS network with whitebox switching.
The role of whitebox in a WISP/FISP MPLS core
Whitebox, if you aren’t familiar with it, is the idea of separating the network operating system and switching hardware into commodity elements that can be purchased separately. There was a good overview on whitebox in this StubArea51.net article a while back if you’re looking for some background.
Lately, in my work for IP ArchiTechs, I’ve had a number of clients interested in deploying IP Infusion with either Dell, Agema or Edge Core switches to build an MPLS core architecture in lieu of an L2 ring deployment via ERPs. Add to that a production deployment of Cumulus Linux and Edge Core that I’ve been working on building out and it’s been a great year for whitebox.
There are a number of articles written that extoll the virtues of whitebox for web scale companies, large service providers and big enterprises. However, not much has been written on how whitebox can help smaller Tier 2 and 3 ISPs – especially Wireless ISPs (WISPs) and Fiber ISPs (FISPs).
And the line between those types of ISPs gets more blurry by the day as WISPs are heavily getting into fiber and FISPs are Continue reading
Worth Reading: Why isn’t everyone running DNSSEC?
The post Worth Reading: Why isn’t everyone running DNSSEC? appeared first on rule 11 reader.
Competing IT Models in the Age of the Enterprise
The problem is that the security and policy features are provider specific.
Rough Guide to IETF 99: Scalability & Performance
In this post I'll highlight some of the Internet Engineering Task Force (IETF) and Internet Research Task Force (IRTF) groups meeting during the IETF 99 meeting in Prague next week. These groups are working to explore and address more sophisticated ways to use and share available bandwidth, improve Internet performance, and otherwise efficiently get Internet content to where it needs to be.
Mat Ford
Rough Guide to IETF 99: Internet of Things
The Internet of Things (IoT) is a buzzword around the Internet industry and the broader technology and innovation business. We are often asked what the IETF is doing in relation to IoT and in this short post I'd like to highlight some of the relevant sessions scheduled during the upcoming IETF 99 meeting in Prague. Check out the IETF Journal IoT Category or the Internet Society's IoT page for more details about many of these topics.
Mat Ford