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.

TCP 116

TCP Routers Bandwidth IP Address 116

Kentik

DECEMBER 13, 2021

This is sort of a long shot, but are you using a corporate DNS server? You might try temporarily switching to a public DNS like Google’s 8.8.8.8. DNS lookups can introduce significant latency on new connections. Notice above that the routers used in the connection are looking pretty snappy.

Application 95

Application DNS Routers Server 95

Kentik

MARCH 13, 2023

Why do we need to create site-to-site VPNs or some sort of modern SD-WAN topology connecting all our branches when almost all traffic goes to the public internet and the cloud? We still need to connect our infrastructure to the public internet, so the enterprise WAN is still about routers, circuit IDs, and perimeter firewalls.

WAN 98

WAN Wide Area Network Topology Internet 98

Kentik

MAY 8, 2023

This includes the ability to: Dynamically adjust to changes in network topology Detect and respond to outages Route around faults in order to maintain connectivity and service levels. IP address abstraction and failover capabilities with DNS Domain Name System (DNS) is a system for mapping domain names to IP addresses.

Network 52

Network Networking IP Address TCP 52

DoorDash Engineering

JANUARY 16, 2024

Internal Envoy routers allow communication between the global cell and replicated cells. Custom multi-cluster service discovery: Our custom service discovery solution, DoorDash data center Service Discovery, or DDSD, provides a custom DNS domain to support multi-cluster communication.

Cloud 84

Cloud IP Address DNS Routers 84

Rule 11

JUNE 21, 2024

Topology Aware Routing is a feature of Kubernetes that prevents cluster traffic within one availability zone from crossing to another availability zone. TL;DR: AES-GCM is great, as long as every nonce (mnemonic: number used once) is truly unique. Once a nonce is reused, AES-GCM completely falls apart.

Energy 40

Energy Routers Topology DNS 40

Kentik

APRIL 4, 2023

Be it power supplies, servers, routers, load balancers, proxies, or any other physical and virtual network components, the horizontal scaling that redundancy provides is the ultimate safety net in the presence of failure or atypical traffic demands.

Cloud 104

Cloud Network Networking Bandwidth 104