EVPNs: The answer to your MPLS issues
So as we dive into What is EVPN I want you to know I am approaching this from a service provider standpoint.
j2sw
What is VoLTE?
Voice over LTE (VoLTE) allows both Data and voice calls at the same time. It is also known as “HD Calling” . Lots of good info here. https://en.wikipedia.org/wiki/Voice_over_LTE The advantages -Simultaneous Voice and Data Calls -High definition (HD) voice calling Sprint currently supports VoLTE. Airspan is supporting VoLTE. Phones which support VoLTE https://en.wikipedia.org/wiki/List_of_smartphones_with_HD_Voice_support
CentOS Time Lines
Are you running CetOS in your network? If so you should be aware of the following dates.
Do you work on SBA or Vertical Bridge towers?
From an e-mail received today The National Wireless Safety Alliance (NWSA) announced today that vertical infrastructure real-estate companies SBA Communications Corporation and Vertical Bridge are placing NWSA certification requirements for technicians working on their respective sites and networks in their Master Service Agreements (MSA’s). Industry workers, companies and stakeholders are encouraged to visit the NWSA … Read more
The physics of twisted pair cabling
The folks over at Fluke networks have a great post on why cabling, such as cat-5, is twisted.
Tool of the week: Mastic
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
Udemy course of the week: Cyber Security
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
IPV6 NAT-PT to communicate to an ipv4 only device
You have a device that only does IPV4 and you want to communicate with it via IPV6.
Centos: DeltaRPM. What is it and do you need it?
Instead of downloading full packages for minor changes all the time, delta rpms were invented
Route Server Diagram for an IX
Normally on a peering exchange, all connected parties will establish bilateral peering relationships with each other customer connected to the exchange. As the number of connected parties increases, it becomes increasingly more difficult to manage peering relationships with customers of the exchange. However, by using route servers for peering relationships, the number of BGP sessions … Read more
Mac OSX Masscan – helpful utilities
One of the network utilities I use the most in network discovery is masscan. This utility will scan all the hosts on a given subnet for a particular port.