cisco Archives | The Answer is 101010

:: Guest shell and iPerf3

Post Author:Jordi Schlooz
Post published:September 20, 2021
Post Category:DevOps / Routing & Switching

Now I dive into one of the options to what extend guest shell can be used. Let's try iPerf3 for some speed and load testing. For the starting point, I…

:: It’s here! The CCIE LAB Image

Post Author:Jordi Schlooz
Post published:February 28, 2021
Post Category:Routing & Switching
Post Comments:5 Comments

A few days ago Peter Paluch posted a thread on Cisco Learning Network. He has created an OS image based on Debian that is used in the actual CCIE EI…

IT Blog Awards Finalists 2020

Post Author:Jordi Schlooz
Post published:December 17, 2020
Post Category:General
Post Comments:0 Comments

:: The surprise of surprises Just on a random mid-week evening sitting at the diner table eating my home made hamburger. All of a sudden my twitter feed explodes. What!? Co-networker…

SD-WAN :: Platinum Library

Post Author:Jordi Schlooz
Post published:July 6, 2020
Post Category:General
Post Comments:0 Comments

For the past few months I've been studying the SD-WAN course provided by Cisco. As a partner you can have access to a lot of course material at this moment.…

Network Fundamentals :: Etherchannels

Post Author:Jordi Schlooz
Post published:April 19, 2020
Post Category:Flashcards / Routing & Switching
Post Comments:0 Comments

EtherChannels AKA LAG, Port-channels, NIC teaming, etc Main goal is to improve bandwidth and forwarding capabilities.LAG hides each member from an upper layer protocol, in this case STP. Where STP…

Network Fundamentals :: The 802.1Q Packet

Post Author:Jordi Schlooz
Post published:April 18, 2020
Post Category:Flashcards / Routing & Switching
Post Comments:0 Comments

IEEE 802.1Q An additional of 32 bits are added to packet header consisting of: Tag protocol identifier (TPID): 16 bitsBelow are part of the TCI structure and is divided in…

SD-WAN :: Deploying the controllers

Post Author:Jordi Schlooz
Post published:March 21, 2020
Post Category:Routing & Switching
Post Comments:7 Comments

I've noticed that deploying SD-WAN controllers come with a special threatment. When working your way through it and deploying more config than needed could result in controllers not being added…

Nothing beats an “analog” book!

Post Author:Jordi Schlooz
Post published:March 16, 2020
Post Category:General
Post Comments:2 Comments

It finally arrived! After studying for a while with an ePub version of this book, it started to annoy me. The LED light propagated on my face all the time…

Catalyst 6880-X :: oversubscription versus performance mode

Post Author:Jordi Schlooz
Post published:January 26, 2020
Post Category:Routing & Switching
Post Comments:0 Comments

The catalyst 6880-X has been here for a while now and has already been announced for End-of-Life in October 2019. Last day of support will be Oct 2025. Before that…

Named VLAN Assignment :: The Alternative Way?

Post Author:Jordi Schlooz
Post published:January 9, 2020
Post Category:Routing & Switching
Post Comments:0 Comments

In Campus designs, where VLAN distribution is needed to provide enough IP space to the access-layer, bulk editing VLAN assignments to access-ports can be a troublesome job. Let's say you…