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Cerberus For Schema Validation
Schema validation with Cerberus.Cerberus For Schema Validation
Cerberus is a lightweight python library that can be used to validate the correct data is being supplied to configuration management tools such as Ansible and Salt or perhaps even Jinja directly. Along with having many useful built in features, Cerberus also makes it relatively straight...Network Notes: Ethernet
The original ethernet specification was owned by DEC, Intel and Xerox hence the standard being named "Ethernet (DIX)". The ethernet specification has been through a number of updates over the years beginning with the IEEE standard in the early 1980's and going through many revisions....continue reading
Network Notes: VLAN
Virtual Local Area Network (VLANs) are used to logically partition physical switch ports into multiple smaller broadcast domains. VLAN A VLAN is a logically segmented group of physical switchports that reduces the broadcast domain of the physical ports to the ports within the...continue reading
Network Notes: EIGRP
EIGRP is an 'advanced' distance vector routing protocol and is the evolution of IGRP. Originally EIGRP was a Cisco proprietary protocol but in 2013 Cisco announced its intention to make EIGRP on open standard. At the time of writing there is an only informational RFC: RFC7868. ...continue reading
Linux Shell Tips and Tricks
A collection of useful linux shell tips and tricks.Linux Shell Tips and Tricks
A collection of useful tips and tricks for the linux shell that I have stumbled across over the years. I'll keep updating this post as I come across something of value. I use bash, so these apply to bash unless noted otherwise but my work in other shells. cat The cat command can be...Viptela SDWAN Overview
High level overview of the Viptela SDWAN solution.Viptela SDWAN Overview
Viptela is an SDWAN company that was recently purchased by Cisco. In this post I will go over the components that make up the Viptela secure extensible network (SEN) solution. By the end of this post you will have a good idea of the pieces that make up the Viptela puzzle. Network...Network Notes: RIP
Routing information protocol (RIP) is a interior distance vector routing protocol originally defined in RFC1058. RIP has had a number of improvements over the years with version 2 being defined RFC2453 and RIPng adding IPv6 support in RFC2080. Transport RIPv1 and RIPv2...continue reading