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CCNA: IP Routing

The Network DNA

In one of the articles , we talk about layer 2 switching where switches build the MAC address table to decide where to forward frame based on the destination MAC address. Here well see how a layer 3 switch or a router transmit packets between different networks using the layer 3 destination address.

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How to Monitor Traffic Through Transit Gateways

Kentik

For AWS cloud networks, the Transit Gateway provides a way to route traffic to and from VPCs, regions, VPNs, Direct Connect, SD-WANs, etc. However, AWS offers no easy way to gain visibility into traffic that crosses these devices — unless you know how to monitor Transit Gateways. VPC and Workload Interconnectivity Requires Planning.

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The Network Also Needs to be Observable, Part 2: Network Telemetry Sources

Kentik

The critical context that enables teams to ask questions about users, applications, and customers (and not just IP addresses and ports). API gateways for digital services. IoT : IoT endpoints, gateways and industrial switches for consumer, smart city, and corporate. Wireless access points and controller.

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How DoorDash Secures Data Transfer Between Cloud and On-Premise Data Centers

DoorDash Engineering

The traffic inside VPC is forwarded to a Direct Connect Gateway (DXG). Vendor’s data centers have private links to their own routers which are set up in AWS Direct Connect Locations. Direct Connect Location: a high-speed AWS network traffic exchange center that contains both AWS Direct Connect routers and vendor’s routers.

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EP139: Design a Live Streaming System

ByteByteGo

share one router with a single public IP address. When a device wants to access the internet, it sends a request to your router. The request contains the device's private IP address. The router’s NAT process replaces the private IP with the router’s public IP.

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Hybrid vs. Multi-cloud: The Good, the Bad and the Network Observability Needed

Kentik

Below you can see how easy it is in AWS to select a VPC and then click a button to “Create internet gateway” in order to grant internet access. If a customer-facing application is moved to the cloud in order to improve performance, a direct internet connection using a gateway can be put in place.

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Multi-Cloud Made Simple: Announcing Kentik Observability Enhancements for AWS and Google Cloud

Kentik

Two exciting new capabilities help you quickly answer any question about your multi-cloud network: Kentik Cloud users can now collect, analyze, and visualize flow logs generated on AWS Transit Gateways. Centralized logs from AWS Transit Gateways don’t require access to flow logs for every attached VPC.

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