Network Field Day 9
I had a fantastic time at Network Field Day 8, and now I’ve been lucky enough to be invited back to NFD9 this February.
As usual, the Tech Field Day crew have put together a great mix of vendors. I particularly like the look of the SDN WAN-focused vendors, such as VeloCloud and cloudgenix. Much of the early SDN focus has been on the DC use-case, but that has limited applicability in my local market. SDN WAN solutions definitely apply to the New Zealand market though. I can think of several organisations where I’d love to have better WAN options today.
I’m also very happy to see Cumulus Networks making a first appearance. I’ve done a lot of Linux work during my career, and there’s many times I would have loved to have all the capabilities of a GNU/Linux environment on a switch. I think they will have a huge influence on how Network OSes are delivered in future.
Network Management has always been a large part of my career too, so I’m looking forward to hearing updates from SolarWinds, and to find out more about NetBeez.
There’s some old faces and new attending. I’m looking forward to meeting people who I’ve Continue reading
Show 220 – OpenFlow + Table Type Patterns with Curt Beckmann
Curt Beckmann, CTO for EMEA at Brocade, joins Packet Pushers Ethan Banks & Greg Ferro for an update of what’s been going on with the Forwarding Abstractions Working Group (FAWG) at the Open Networking Foundation (ONF). We get into a discussion of emerging Table Type Patterns within OpenFlow (OF), a way for OF switches and OF […]
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The post Show 220 – OpenFlow + Table Type Patterns with Curt Beckmann appeared first on Packet Pushers Podcast and was written by Ethan Banks.
On-going BGP Hijack Targets Palestinian ISP
It’s a new year, but some things never change. In the past few days we have observed a spate of incidents of routing misbehavior including two man-in-the-middle routing hijacks conducted in the past couple of days by A2B Internet out of the Netherlands.
Beginning at 00:33:44 UTC on Thursday, 8 January, we began observing a routing hijack of IP address space normally announced by Mada Telecom (AS51047), a Palestinian ISP with presence in both Gaza and the West Bank. Beginning at that time, A2B Internet B.V. (AS51088) began announcing 46.244.81.0/24, which is a more-specific route of 46.244.80.0/23, normally announced by Mada.
Traceroutes directed to this address space are presently being re-directed to A2B Internet’s network in the Netherlands before continuing on to Palestine. For example:
trace from Cyberjava, Malaysia to Mada Telecom, PS on Jan 09, 2015
1 *
2 x.x.x.x (Cyberjaya, Malaysia) 3.442
3 113.23.163.57 (Extreme Broadband, Malaysia) 0.696
4 113.23.190.109 (Extreme Broadband, Malaysia) 1.222
5 218.189.12.101 global.hgc.com.hk 35.854
6 218.189.8.102 global.hgc.com.hk 36.742
7 118.143.224.243 (Hutchison, Singapore) 41.628
8 218.189.8.142 (Hutchison, Amsterdam) 190.787
9 195.219.150.6 (Tata, Amsterdam, NL) 213.494
10 46.244.0.4 (A2B Internet, NL) 200.990
11 141.136.97.5 (GTT, Amsterdam) 268.366
12 4.68.70.97 xe-5-0-1.edge3.Amsterdam.Level3.net 300.909
13 4. Continue readingiPexpert’s Newest “CCIE Wall of Fame” Additions 1/09/2015
Please Join us in congratulating the following iPexpert client who has passed his CCIE lab!
This Week’s CCIE Success Stories
- Srikanth Navuluri, CCIE #45896 (Routing & Switching)
- Rodrick Burke, CCIE #46154 (Wireless)
- Bradley Lierman, CCIE #46093 (Collaboration)
- Lee Ramirez, CCIE #46113 (Wireless)
We Want to Hear From You!
Have you passed your CCIE lab exam and used any of iPexpert’s self-study products, or attended a CCIE Bootcamp? If so, we’d like to add you to our CCIE Wall of Fame!
Plexxi Pulse—Networking Predictions: 2015 Edition
Happy New Year! The year is off to a great start and we are excited to see what 2015 will bring to the networking space. I have a few predictions of my own (think policy and disaggregation) that were recently published in Network World. What are your networking predictions for 2015? Below are our top picks for networking stories this week.
In this week’s PlexxiTube #FBF (Flashback Friday) video of the week, Dan Backman interviews VMworld 2014 attendees and asks what they’ve done to help their networks accommodate to Big Data.
Network World: SDN, data center predictions for 2015
By Jim Duffy
The predictions for data center and SDN in 2015 are still rolling in. Technology Business Research says software will pervade the data center while start-up Plexxi believes policy and disaggregation will be front and center. Here’s the link to TBR’s 2015 Data Center Predictions. Some of the more interesting prognostications in it are the acceleration of SDN in the enterprise and the ability of hyperconvergence to converge.
Network Computing: 10 SDN Startups On The Cutting Edge
By Marcia Savage
Small companies flush with VC money have led the way in software-defined networking. Here are 10 of the hottest Continue reading
Mikrotik L2TP with IPsec for mobile clients
I got some questions about how to configure Mikrotik to act as L2TP Server with IPsec encryption for mobile clients. I know this is not exactly in the line of this blog oriented on enterprise networks, but it’s network technology in the end so I’ll try to cover it here.
CCIE R&S,SP,Wireless,Collaboration,Datacenter,Security Preparation Recommendations
Orhan Ergun and Neil Moore talked about CCIE Preparation on the packetpushers podcast. Neil Moore is only 8xCCIE in the world and well known geek and HP fellow. Which exam is the hardest ? What are their advises ? Which certification should be received first, what should be the order ? CCIE vs […]
The post CCIE R&S,SP,Wireless,Collaboration,Datacenter,Security Preparation Recommendations appeared first on Network Design and Architecture.
Palo Alto Virtual Firewalls on Software Gone Wild
One of the interesting challenges in the Software-Defined Data Center world is the integration of network and security services with the compute infrastructure and network virtualization. Palo Alto claims to have tightly integrated their firewalls with VMware NSX and numerous cloud orchestration platforms - it was time to figure out how that’s done, so we decided to go on a field trip into the scary world of security.
Read more ...Book Review – End-to-End QoS Network Design: Quality of Service for Rich-Media & Cloud Networks, Second Edition
As part of my CCDE studies, I needed a good resource on QoS. There have basically been two good books on QoS before, the first edition of End to End Qos Network Design and Qos-Enabled Networks: Tools and Foundations. The first edition of this book is good but very dated, it was released back in 2004. Qos-Enabled Networks is a great book but it’s written to not be vendor specific, so you will not get details on platforms or configuration snippets.
In my opinion, earlier books gave a good foundation to understand QoS concepts but there were too few design cases, they were lacking platform information and not enough examples to be able to act as a reference. Since the first edition of this book, a lot has happened, new products and new Places In the Network (PIN) such as Datacenter, Wireless and to some degree MPLS.
The book is written by Tim Szigeti, Christina Hattingh, Robert Barton and Kenneth Briley Jr. Tim is a long time CCIE, technical leader at Cisco. He is the QoS gury responsible for a lot of the Cisco Validated Designs (CVDs) and a frequent presenter at Cisco Live. Christina is a former Technical Marketing Continue reading
Networking FAQ 2: Certifications
- What are the most popular certifications in networking?
- How much is certification X worth?
- How should I study for certification exams?
- What's a "brain dump?"
- What is the exam experience like?
- I only just barely passed! Does it still count?
- My employer will pay for me to get a certification. Should I do it?
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Problems with kvm-ok in VIRL with VMWare Player
I'm installing Cisco VIRL, and despite following the instructions regarding nested virtualization settings, the kvm-ok command was still complaining. I needed to edit the .vmx file for the VIRL VM and add/edit the following:monitor.virtual_mmu = "hardware"
monitor.virtual_exec = "hardware"
vhv.enable = "TRUE"
monitor_control.restrict_backdoor = "true" Problems with kvm-ok in VIRL with VMWare Player
I'm installing Cisco VIRL, and despite following the instructions regarding nested virtualization settings, the kvm-ok command was still complaining. I needed to edit the .vmx file for the VIRL VM and add/edit the following:monitor.virtual_mmu = "hardware"
monitor.virtual_exec = "hardware"
vhv.enable = "TRUE"
monitor_control.restrict_backdoor = "true" It’s the logical flow that matters!
Yes, kind of like the phrase “It’s the economy stupid” from the 1992 presidential campaign. As we ramp up to theNo VMware NSX manager connected
If the VMware vSphere Web Client shows no connected NSX Manager, try to restart the NSX Manager service. The issue can happen if the vCenter is restarted or starts after the NSX Manager. Connect to the NSX Manager and in the summary view stop and restart the NSX Management Service : After a while the vCenter […]IPsec VPN Mikrotik to Cisco
Not long ago I wrote an article on how to configure an IPsec VPN using Mikrotik and Linux devices. For today, I will replace the Linux device with a Cisco. I did test the entire construct in GNS3 integrated with Mikrotik.
Moving a powered off VM from CLI
In this short post we’ll see how to move a powered off VM from one host to another one using CLI commands. The first step is list the required VM: ~ # vim-cmd vmsvc/getallvms Vmid Name File Guest OS Version 4 vcenter1 [esx1_datastore] vcenter1/vcenter1.vmx windows7Server64Guest vmx-08 The VM ID is 4. Let’s check the power […]GNS3 Jungle Reaches More Than 125,000 Members Inside 60 Days
Today we are extremely excited to announce a major milestone in the GNS3 Community. Since launching over two months ago we haveLatency: the Killer of Spread-Out Application Stack Ideas
A few months ago I described how bandwidth limitations shatter the dreams of spread-out application stacks with elements residing (or being dynamically migrated) between data centers. Today let’s focus on bandwidth’s ugly cousin: latency.
TL&DR Summary: Spreading the server components of an application across multiple locations (multiple data centers or hybrid cloud deployments) can easily result in dismal performance even when there’s plenty of bandwidth available.
Read more ...Bare Metal For the Rest of Us
Bare metal switching technology fueled the world’s big cloud data centers, with a simplified supply chain as the economic driver. Now the technology and economics are hitting the mainstream in open networking solutions for the rest of us.
Bare metal servers changed the world of compute. The same thing is happening in networking: bare metal switches are the foundation for an inevitable shift in data center networking. The movement is called “open networking” but at it’s core, it’s really just about great physical networks with the additional benefits of a rich ecosystem, broad support for automation and monitoring tools, and improved economics.
The big players in bare metal switching – including Accton and Quanta – leverage best-in-class components to deliver high performance switches, and they do it fast. Add an OS (more on that later) and you’ve got a disaggregated model that enables networking that fulfills the vision of the software-defined data center. If SDDC doesn’t matter so much to you, then think of this: bare metal may fulfill your vision of a more affordable, manageable network that gives you the time and funding for more projects that really help your business.
(For comparisons on pricing and shipping speed versus Continue reading