I’m doing a live webinar at Safari Books Online on March 15thabout the operation of the ‘net—
This live training will provide an overview of the systems, providers, and standards bodies important to the operation of the global Internet, including the Domain Name System (DNS), the routing and transport systems, standards bodies, and registrars.
My friends from ECI join the Network Collective to discuss 5G—well worth listening to for an understanding of 5G from a wired network perspective.
Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
We need to do “upgrades in the network” is one of those phrases that chills the bones of all IT engineers. Upgrades don’t have to be so painful and in this blog, we’re going to discuss the upgrade process recommended by Cumulus and leave you with some example automation to make the process as efficient as possible.
Upgrades are necessary to maintain stable and secure code but bring the risk of new bugs and sustained outages due to unforeseen circumstances, and they’re generally not very easy to perform. Anyone who has worked network operations knows that upgrade windows could run as quickly as an hour or as long as all night (and maybe for the next three nights). Even as I write this I am remembering experiences from upgrade windows of old where things did not go according to plan. But before we get into the specifics of the upgrade process with Cumulus, it is worth discussing why upgrades in the network are so fraught with peril.
DISCLAIMER: Rant Incoming
The biggest impediment to network upgrades is complexity. When we say complexity we mean the conscious choice to add complexity into the design of the network that most folks undertake Continue reading
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