Packets DownRange
I am fresh back from Nanog #87 in Atlanta. Great times! Thank you to those who gave me some lines on this week’s news articles. Keep those submissions coming. By now, everyone who has signed up should be receiving this in their e-mail box. If you could simply comment at the bottom of this post … Read more
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this content, you must be a member of Justin’s Patreon Unlock with PatreonAlready a qualifying Patreon … Read more
https://blogs.cisco.com/networking/application-hosting-on-catalyst-9000-series-switches Catalyst 9000 series of switches, Cisco’s flagship enterprise switching portfolio delivering Intent Based Networking (IBN) runs a modern, modular and model-driven operating system stack, Cisco IOS® XE. Powered by Intel x86 CPU, Catalyst 9000 series now supports secure Docker™ container based application hosting environment, starting with the Catalyst 9300 switches. Users now have the … Read more
https://www.globed.net/courses/back-to-networking-basics In this Networking Basics Workshop we will be learning the following: REFERENCE MODELSETHERNET STANDARDS AND SPECSTRANSMISSION METHODSTOPOLOGIES NETWORKING DEVICESIPV4 ADDRESSINGHEX CONVERSIONCISCO ROUTER AND SWITCH BASICCISCO ROUTER AND SWITCH CONFIGURATIONLAYER 2 SWITCHING LAYER 3 ROUTINGLAYER 3 ROUTING USING L3 SWITCHING RECORDINGS OF THE WORKSHOP WILL BE SENT TO ALL THAT REGISTER – Even to those that … Read more
For those of you implementing Syslog triggers and such the following list will be helpful in filtering and classifying Syslog entries. 0 – Emergency 1 – Alert 2 – Critical 3 – Error 4 – Warning 5 – Notice 6 – Informational 7 – Debug
One of the most asked questions which come up in the xISP world is “How do I learn this stuff?”. Depending on who you ask this could be a lengthy answer or a simple one-sentence answer. Before we answer the question, let’s dive into why the answer is complicated. In many enterprise environments, there … Read more
As Internet traffic grows and becomes more dynamic, optical transport networks for sub-sea, terrestrial long haul and metro need more capacity.
While double checking some stats on a network I came across this in Librenms in regards to a Cisco 2960X
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this content, you must be a member of Justin’s Patreon Unlock with PatreonAlready a qualifying Patreon … Read more
Outbound Route Filtering (ORF) is a Cisco proprietary feature that prevents the unnecessary exchanging of routes that are subject to inbound filtering.
What you need to know for the new CCNA 200-301 exam by Cisco coming out this year in 2020
