Latest From Our Blog

GIMX Armbian Image for OrangePi

feature for NeDi default Topology Map

Because of our requirements I have changed the Topology-Map, primary the d3.js / json part.
It does work, but I think the implementation in the libmap.php can be better.
It’s not finished yet. I’m open for suggestions and feedbacks.
Additional features like save positions, map zoom, change background and more will be implementend soon.  For more information please visit the NeDi-Forum .

The code is in the alpha phase.
This is coded for the NeDi version 1.5 .

I didn’t touch the original functions in the libmap.php file.
I copied it and created two new functions with my changes.
When you call the Topolgy->D3jsmap it creates a new json map file called “map3js_$username.json” instaed of “map_$username.json”



please backup the original file first.
like that \hmtl\inc\libmap.php.backup

copy the two files on your nedi HTML folder.

edit nedi.conf and put this line on GUI Settings.
module    Topology   D3jsmap         paint   net


1. Filter:
I haven’t change anything here.

2. Main
In the d3js map I have only changed the D3js code for my expected results.
I have focused on the Output from the Devices and Nodes(nodes without interface).

3. Layout
Metric: you can set the Charge of the forcelayout                 // lal default is 120, 120/4=30
Length: you can change the link distance between devices or nodes    // len default default is 50, -3*50=-150

4. Show
If Name: show the linked interface between the two devices
Device IP: show the device IP expected in nedi

Room: show the room from the snmp string
Rack: show the rack from the snmp string

When you select both Room and Rack then it show the complete snmp string

To better indentifying the devices on the same building or room, they have the same font color.

Mode: show the device contact
Mode: show the device model

Go to print mode and then position your devices to print as PDF… or so.
Default Output with Interface like SVG and PNG output… but you can place your devices vy yourself .


Multiple Links


Cisco Introduces Cloud and Internet of Things (IoT) Certification

With the Slogan >>Connect the Unconnected<< begins Cisco to build on the Internet of Everything (IoE) and the Internet of Things (IoT) . To education the peoble on this new material Cisco introduces the new Cloud and Industrial Training and Certification program. Very interesting is that for the CCNA Cloud you don’t need to get the CCNA RS first. So you can save time and money to get the new Cloud certification.

CCNA Industrial

IMINS or CCENT or CCNA Routing and switching, or any valid CCIE certification And IMINS2

Required Exam(s) – Recommended Training
200-601 IMINS2 – Managing Industrial Networking for Manufacturing with Cisco Technologies(IMINS2)

CCNA Cloud

No Prerequisites

Required Exam(s) – Recommended Training
210-451 CLDFND – Understanding Cisco Cloud Fundamentals (CLDFND)
210-455 CLDADM – Introducing Cisco Cloud Administration (CLDADM)

CCNP Cloud

Valid CCNA Cloud certification or any CCIE certification can act as a prerequisite.

Required Exam(s)* – Recommended Training – *Additional information will be available August 2015
300-504 CLDINF – Implementing and Troubleshooting the Cisco Cloud Infrastructure (CLDINF)
300-505 CLDDES – Designing the Cisco Cloud (CLDDES)
300-506 CLDAUT – Automating the Cisco Enterprise Cloud (CLDAUT)
300-507 CLDACI – Building the Cisco Cloud with Application Centric Infrastructure (CLDACI)

Here are some good presentations from various Cisco Live Events:

BRKIOT-2442 – Intermediate – Enabling the Internet of Everything: Cisco’s IoT Architecture (2015 Milan)
GENSSN-1628 – Internet of Everything: The Business of Connecting the World (2015 Melbourne)
PSOIOT-2002 – IoT Technologies Portfolio: An Overview (2015 San Diego)
BRKIOT-2025 – Building Large Scale IOT Architectures (2014 San Francisco)

BRKCOL-1607 – Introductory -Introduction to cloud and hybrid cloud Collaboration services (2015 Milan)
BRKUCC-2675 – Understanding the Cisco Cloud Collaboration Platform (2015 Melbourne)
PSODCT-2625 – Cisco Enterprise Cloud (2015 San Diego)
BRKSPG-2466 – Intermediate – Evolution of Virtual Networking to Applications and Clouds (2015 Milan)


Cisco Introduces New Cloud and IoT Certifications to Address Key IoE Skills

Create Binary Image with Linux

To create an image file on Linux we have various options to do the job. We have commands like dd, truncate, mkfile and others. On most linux systems we have fallocate installed by default. The command fallocate is supported only on certain file systems such ext4, xfs, ocfs2 and btrfs.  The best choice to create a large file on a Linux system is the command fallocate. Fallocate only allocates/reserves blocks and marking them as uninitialized without requiring I/O and CPU time. This is much faster than creating a file by filling it with zeros like the command dd does.


To make sure we have sufficient disk space to create an image file, we use the command df.


We can see, that we have enough disk space to create some image files.  To create an image file we use the command fallocate.



Example to create a 100 Megabyte file:

Example to create a 1 Gigabyte file:

Example to create a 10 Gigabyte file:

Let’s verify our new file.:



LAB – NM-8A/S arrived

Yeah finaly the cisco NM-8A/S modules where I bought on ebay arrived today. Since in CCIE RS v5 hardware requirements changed, I had to update my lab hardware.



Are you Shellshock(ed)?

The Shellshock bash bug is a critical security hole for all Unix, Linux and *nix based systems. Bash(Unix Shell) is a piece of Software released by Brian Fox in 1989 for the GNU Project.

The bug can affect you trough malicious requests sent to web servers or network devices.

A number of Cisco products use an affected version of the Bash shell.

Cisco made an official statement that meraki devices are not affected from the Shellshock and Heartbleed vulnerability. See detailed information at the official cisco website.

Cisco Meraki Shellshock
Cisco Meraki Heartbleed

There is a very simple test to check  if you are vulnerable. Run the following lines in your default shell.

Network Application, Service, and Acceleration

  • Cisco ACE Application Control Engine Module for the Cisco Catalyst 6500 [CSCur02931]
  • Cisco ASA CX and Cisco Prime Security Manager [CSCur01959]
  • Cisco Application Control Engine (ACE30/ ACE 4710) [CSCur02195]
  • Cisco Application and Content Networking System (ACNS) [CSCur05564]
  • Cisco Clean Access Manager [CSCur05566]
  • Cisco DC Health Check [CSCur09963]
  • Cisco GSS 4492R Global Site Selector [CSCur02747]
  • Cisco NAC Appliance [CSCur03364]
  • Cisco NAC Server [CSCur05575]
  • Cisco NetAuthenticate [CSCur05632]
  • Cisco Smart Call Home [CSCur05551]
  • Cisco Smart Care [CSCur05638]
  • Cisco Sourcefire Defense Center and Sensor Product – None
  • Cisco Visual Quality Experience Server [CSCur06775]
  • Cisco Visual Quality Experience Tools Server [CSCur06775]
  • Cisco Wide Area Application Services (WAAS) [CSCur02917]

Network and Content Security Devices

Network Management and Provisioning

Routing and Switching – Enterprise and Service Provider

Unified Computing

Voice and Unified Communications Devices

Video, Streaming, TelePresence, and Transcoding Devices

  • Cisco AutoBackup Server [CSCur09315]
  • Cisco D9036 Modular Encoding Platform [CSCur04504]
  • Cisco Digital Media Player (DMP) 4310 [CSCur05628]
  • Cisco Download Server (DLS) (RH Based) [CSCur09318]
  • Cisco Edge 300 Digital Media Player [CSCur02761]
  • Cisco Edge 340 Digital Media Player [CSCur02751]
  • Cisco Media Experience Engine (MXE) [CSCur04893]
  • Cisco PowerVu D9190 Conditional Access Manager (PCAM) [CSCur05774]
  • Cisco Show and Share [CSCur03539]
  • Cisco StadiumVision Director [CSCur30139]
  • Cisco StadiumVision Mobile Reporter [CSCur30167]
  • Cisco StadiumVision Mobile Streamer [CSCur30155]
  • Cisco TelePresence 1310 [CSCur05163]
  • Cisco TelePresence Conductor [CSCur02103]
  • Cisco TelePresence Exchange System (CTX) [CSCur05335]
  • Cisco TelePresence ISDN Link [CSCur05025]
  • Cisco TelePresence Manager (CTSMan) [CSCur05104]
  • Cisco TelePresence Multipoint Switch (CTMS) [CSCur05344]
  • Cisco TelePresence Recording Server (CTRS) [CSCur05038]
  • Cisco TelePresence System 1000 [CSCur05163]
  • Cisco TelePresence System 1100 [CSCur05163]
  • Cisco TelePresence System 1300 [CSCur05163]
  • Cisco TelePresence System 3000 Series [CSCur05163]
  • Cisco TelePresence System 500-32 [CSCur05163]
  • Cisco TelePresence System 500-37 [CSCur05163]
  • Cisco TelePresence TE Software (for E20 – EoL) [CSCur05162]
  • Cisco TelePresence TX 9000 Series [CSCur05163]
  • Cisco TelePresence Video Communication Server (VCS/Expressway) [CSCur01461]
  • Cisco TelePresence endpoints (C series, EX series, MX series, MXG2 series, SX series) and the 10″ touch panel [CSCur02591]
  • Cisco VDS Service Broker [CSCur05679]
  • Cisco Video Distribution Suite for Internet Streaming VDS-IS [CSCur05320]
  • Cisco Video Surveillance Media Server [CSCur05423]
  • Cisco Virtual PGW 2200 Softswitch [CSCur05847]

Cisco Hosted Services

For more detailed information see original post from Cisco [cisco-sa-20140926-bash]

Last day for 350-001 CCIE Routing and Switching

Today is the last day to take the legendary 350-001 CCIE Routing and Switching v4.0 written or lab exams. The CCIE Routing and Switching exams will be available tomorrow, 4. June 2014.If you have already passed the CCIE Routing and Switching written v4.0 you have to take the CCIE v5 R&S lab exam.

For me everything is clear, I have to focuses my study to the 400-101 CCIE Routing and Switching v5.0 Exam Topics. To prepare for the exam, I have to read many Cisco Press books (see my booklist) and lot of other stuff. At the moment I’ve started to rereading my CCNP Books. My goals for my lab time is to go through the INE’s and Narbik’s workbooks.


Anki CCIE Flashcards

Now is the first version of the Anki CCIE flashcard online.

CCIE Flashcard


Hello World!

Welcome to my blog. This is my first post. My name is Thiago Perrini and currently I’m working as an Network Specialist at the Zurich Airport.

I’ve been in IT for about 11 years, starting with my apprenticeship as Information Technology at the FHBB/FHNW.

I have earned the CCNA RS, CCNA Voice and the CCNP RS certifications. The next logical step is to go for the CCIE. At the next time I’m gonna share my study time and experiences.

Thanks for visiting my blog.