My Private Cloud Block Architecture Diagram
Here is a block diagram showing the functional areas in private & public cloud that I use when working with clients. I'm often explaining the full picture of cloud building especially in relation to how the network can be orchestrated to fully accelerate the cloud process. I hope you find it useful.
The post My Private Cloud Block Architecture Diagram appeared first on EtherealMind.
VMware bug: inconsistent LACP views
There is a bug which makes LACP related views inconsistent. Latest 5.5U1 vCenter is still affected Create a LAG interface (dvSwitch -> Settings -> LACP): Now open the “Migrate network traffic to LAGs” and enable lag1 interface as standby port (Manage Distributed Port Groups -> Teaming and failover -> select the port group): Let the process […](Visited 163 times since 2013-06-04, 1 visits today)
NetDevOps – The Journey Begins
The cultural divide between delegation of network control such as in the case of Cisco ACI, or VMware’s NSX is a cause for questioning. These are off the shelf products designed to solve a problem that exists today but introduce new problems to the organisations that acquire them. Who controls the network and at what stratum(1)? In the case of automation and orchestration products, who creates the templates? Who is allowed to trigger automation and orchestration events and even more importantly, when is that person allowed to do it? As the virtual networks are virtual, does control belong with the virtualisation team? Hrmmm. Lots of questions. Many of these are dependent on the company, customer and situation and might not be solved with the most marketed product. A regimented set of answers doesn’t exist, nor do I think there will ever be out of hyper scale data centre environments.
It has taken years for the DevOps community to understand how to handle the requirement of rapid and agile deployment. We’re not the first ones to go through this pain. Can you imagine a tightly controlled ITIL governed network suddenly being comfortable with partial or fully automated approach to network Continue reading
Omg Hotel Pennsylvania sucks
Customer service is a tradeoff you get with price, thus I'm not terribly offended by things such as that recent terrible Comcast support call. If you don't want shitty service/product, then pay more. Often simply paying 10% more yields something vastly better.The only problem is finding those "deals".
I'm at the HopeX conference, so to make life easier, I decided to stay at the venue, the Hotel Pennsylvania. Since it's a late booking, the price was $199 a night for an "upgraded" room. The room was horrible. It was tiny, the walls in the bathroom were crumbling as the damp seeped into the concrete, the furniture was scraped and dented, and the room's one tiny window looked out onto other rooms only 20 feet away. I could bear all that -- but the "non-smoking" room stank of smoke to the point that I couldn't fall asleep. So at 1:30am I gave up and checked out.
I went two (short) blocks down to the Hotel Affinia, which cases $224 for a room that's twice the size and "upscale": everything is nice new and pretty, and this non-smoking room doesn't smell a bit like smoke. It doesn't even smell like the Continue reading
The New Ansible Tower Command Line Tool
Today we're happy to announce a new update to Ansible Tower CLI (link) that provides near 100% coverage of all REST functions within Ansible Tower from a CLI perspective. The CLI tool can also be imported and used as a library from other python programs. Tower CLI is open source, under the Apache 2.0 license, so it can be easily mixed into other projects, and we're also happy to take pull requests and ideas on this project.
802.1x on Cisco Catalyst 2950
A very short post about 802.1x (dot1x) on Cisco Catalyst 2950 series. Configure RADIUS and enable dot1x on the switch: aaa authentication dot1x default group radius aaa accounting dot1x default start-stop group radius dot1x system-auth-control Then enable dot1x on all interfaces (additional security commands are added in the example below): interface FastEthernet0/1 switchport mode access […](Visited 179 times since 2013-06-04, 1 visits today)
Coffee Break 12
The Coffee Break will be renamed to the "The Network Break" and will be getting its own channel on the Packet Pushers Network. But for this week, we talk about the latest news in networking and physical infrastructure.Coffee Break 12
The Coffee Break will be renamed to the "The Network Break" and will be getting its own channel on the Packet Pushers Network. But for this week, we talk about the latest news in networking and physical infrastructure.
The post Coffee Break 12 appeared first on Packet Pushers.
Coffee Break 12
The Coffee Break will be renamed to the "The Network Break" and will be getting its own channel on the Packet Pushers Network. But for this week, we talk about the latest news in networking and physical infrastructure.
Author information
The post Coffee Break 12 appeared first on Packet Pushers Podcast and was written by Greg Ferro.
CCIE Bootcamp Price Reduction
INE is reducing the cost of our live, instructor-led bootcamps by $1,000 each. Our new pricing model will still include access to our workbooks and ATC video courses with the purchase , but will separate out the Lab Exam Voucher and access to our All Access Pass as optional add-ons to provide you with a more flexible options for both your learning style and your budget. If you would like the existing complete, bundled solution, you have until Aug 1 to make a bootcamp purchase.
See this advert for more details.
Look forward to seeing you in a bootcamp soon!
Working with VMware NSX – The setup
I’ve spent some time over the last few weeks playing around with VMware’s NSX product. In this post, I’d like to talk about getting the base NSX configuration done which we’ll build on in later posts. However, when I say ‘base’, I don’t mean from scratch. I’m going to start with a VMware environment that has the NSX manager and NSX controllers deployed already. Since there isn’t a lot of ‘networking’ in getting the manager and controllers deployed, I’m not going to cover that piece. But, if you do want to start from total scratch with NSX, see these great walk through from Chris Wahl and Anthony Burke…
Chris Wahl
http://wahlnetwork.com/2014/04/28/working-nsx-deploying-nsx-manager/
http://wahlnetwork.com/2014/05/06/working-nsx-assigning-user-permissions/
http://wahlnetwork.com/2014/06/02/working-nsx-deploying-nsx-controllers-via-gui-api/
http://wahlnetwork.com/2014/06/12/working-nsx-preparing-cluster-hosts/
Anthony Burke
http://networkinferno.net/installing-vmware-nsx-part-1
http://networkinferno.net/installing-vmware-nsx-part-2
http://networkinferno.net/installing-vmware-nsx-part-3
Both of those guys are certainly worth keeping an eye on for future NSX posts (they have other posts around NSX but I only included the ones above to get you to where I’m going to pick up).
So let’s talk about where I’m going to start from. My topology from where I’ll start looks like this…
Note: For reference I’m going to try and use the green Continue reading
A simple SameGame implementation
Doing something interesting to practice.Priority Queue – SDN and The Reseller Channel
What is the future of SDN Vendors ? Will all the startups eventually close down to just a few choices or can there be a vibrant ecosystem which can allow for many vendors to survive ? The discussion took a left turn and became an strong discussion of whether resellers will survive the arrival of SDN.
Author information
The post Priority Queue – SDN and The Reseller Channel appeared first on Packet Pushers Podcast and was written by Greg Ferro.
How to run X applications on a guest VM in the cloonix network simulator
To run a program that uses a graphical user interface on a guest virtual machine running in the cloonix open-source network simulator, log into the guest VM from the host computer using SSH and forward the X11 display. Then, any X11 program you run on the guest VM using that SSH session, such as Wireshark, will display its X windows on the host computer.
Initial setup
First, we create a cloonix network simulation with at least one guest VM. In this example, we created three guest VMs named Cloon1, Cloon2, and Cloon3.
A cloonix network simulation with three guest VMs
See previous posts related to using cloonix, if you need help setting up the example network.
Connect to guest VM via SSH
Open a new terminal window on the host computer. We do this so we can run X windows from the guests on the host. As discussed in the Cloonix v24 overview post, cloonix uses a patched version of the Dropbear SSH client so we use the dbssh command that is installed in the cloonix tree directory, ~/Netsims/cloonix-24.11.
The Dropbear SSH client automatically forwards X windows from the client machine to the server machine so Continue reading
My CCIE Journey
I use to post this blog on my friends blog and I just wanted to put it here since this journey was one of the biggest professional experience of my life. I am starting this blog and will dedicate some time (mostly late at night ..) to write articles (without any flashiness) for every engineers […]Cisco Virtual IOS on GNS3
The tutorial discuss the use of GNS3 software to run Cisco Virtual IOS (vIOS). Cisco vIOS is shipped and supported as a part of the Cisco's One Platform Kit (onePK) that is distributed in form of virtual machine. It might be downloaded with Cisco.com account. Currently, it is not required to have Cisco account associated with service contracts, Bill-to IDs, or product serial numbers in order to download onePK.
Software Prerequisites
- Host OS - any 64 bit Linux OS
- Qemu emulator and virtualizer compiled with x86_64 support
- KVM
- GNS3 0.8.7 - the last version that has Qemu support included
- Cisco all-in-one-VM-1.2.1-194.ova virtual machine
Minimum Hardware Requirements
- CPU with hardware virtualization support (AMD-V or VT-X virtualization extensions)
- Storage - 10 GB
- RAM - 2000 MB
- RAM vIOS - 384 MB
Script for Extracting vIOS from All-In-One VM
Here is a Linux bash script that helps you to extract vIOS vios-adventerprisek9-m.vmdk from all-in-one VM file. Download all-in-one.ova file from here and assign executable privileges to the script.
$ chmod +x extract_vios.txt
Then you can run the script as it is shown below. The only user input is selecting path to all-in-one VM file Continue reading
EFF lies about NetNeutrality
The EFF has completely and thoroughly repudiated JP Barlow's "Declaration of Independence of Cyberspace", such as in this tweet:TAKE ACTION: Congress is trying sneak through a dangerous amendment that will kill Net Neutrality. Call right now: https://t.co/lmObQjG49N
— EFF (@EFF) July 15, 2014This tweet is lie. Congress can't "kill Net Neutrality" because Net Neutrality doesn't currently exist. Net Neutrality proponents don't want to maintain the status quo, but radically change the Internet, converting it from the private network it is now into a public utility, regulated by the government.
What the left-wing populists tell you about Net Neutrality is a lie. Corporations aren't doing the evil things they claim. There is no technical idea behind it like "end-to-end". Net Neutrality is just the political belief that corporations are inherently evil and that the government must run the Internet.
Internet "fast lanes" are not a bad thing. They already exist, and the Internet can't function without them. Sniff your home traffic and then traceroute every IP address your system communicates with. You'll find that 90% of you home traffic goes to a server in your local city. That's because most websites use a fast lane to the Continue reading
Mellanox and bad CLI choices
I’ve been working on Mellanox S-Series switches lately in a largish network with several hundred 10GbE server ports. On the whole, the product has performed beyond my cynically low expectations and the product has good capabilities overall but the command line interface (CLI) is a really poor user experience. How about this gem for configuring […]
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Port mirroring on VMware vSwitch/dvSwitch (dvMirror)
Port mirror is a traditional features available on physical switch to capture port traffic and redirect to a remote destination. A remote destination can be (using the Cisco convention): A physical port located on the same physical switch (Switch port Analyzer or SPAN port). The traffic is simply copied to the destination port too. A physical port […](Visited 433 times since 2013-06-04, 5 visits today)