DNS Protocol Routers 
Kentik
JANUARY 24, 2022
Back in the 1990s, NetFlow was introduced on Cisco routers as a means to collect information about IP network traffic as it enters or exits an interface. You can also learn about the protocols in use, the ports being used, the top interfaces, etc. IP protocol. Source port for UDP or TCP, 0 for other protocols.
Heroku
NOVEMBER 21, 2024
This week , Heroku made Router 2.0 Throughout the Router 2.0 A small subset of Puma applications would experience increased response times upon enabling the Router 2.0 flag, reflected in customers Heroku dashboards and router logs. flag, reflected in customers Heroku dashboards and router logs. dyno root@router.1019708
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Kentik
OCTOBER 4, 2021
According to a statement published last night, Facebook Engineering wrote, “Configuration changes on the backbone routers that coordinate network traffic between our data centers caused issues that interrupted this communication.” tfbnw.net — which is another router inside AS32934 that belongs to Facebook. So what happened?
Kentik
JANUARY 10, 2022
Or, perhaps one or more of the 10-20 routers in the path needed to reach the destination gets busy for a hundred milliseconds or so. Domain lookup time : When a connection is made to a domain, the local operating system must first reach out to the DNS to resolve that hostname to an IP address. Where is the DNS?
Kentik
SEPTEMBER 20, 2021
Not as difficult as time travel, but it’s difficult enough so that for 30+ years IT professionals have tried to skirt the issue by adding more bandwidth between locations or by rolling out faster routers and switches. Each switch and router we pass through introduces a bit of latency that adds up quickly. How latency is measured.
Kentik
OCTOBER 12, 2021
Some NPM vendors started pairing DNS lookup records with flow data in order to separate business applications from non-business applications hosted on the same IP address. The problem is that many companies have several DNS servers spread out in far-reaching locations, and not all DNS vendors allow access to the logs.
Kentik
MAY 8, 2023
While redundancy is a significant contributor to network resilience, other mechanisms, protocols, and methods can also contribute to overall network resilience. Many network protocols have been designed to handle different aspects of this process. Many network protocols have been designed to handle different aspects of this process.
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