Network Topology Discovery:How It Really Works (FOSDEM'24 Talk) скачать в хорошем качестве

Network Topology Discovery:How It Really Works (FOSDEM'24 Talk)

Feel like you’re not quite sure you know about all the devices in your network? This is when network topology discovery function comes in very handy. Although, applying it might not be that straightforward if you don’t know what it consists of and how to do it. This presentation outlines the network topology discovery in detail, told by the monitoring platform’s NetXMS (https://netxms.com) developers team with decades of experience. They will cover such topics as - what is LLDP and CDP and how they can be used as sources of info for the topology discovery - how Spanning Tree can be such a source too (or not at all!) - what is FDB and how it can be used to get information about the end nodes in your network - automatic device discovery Finally, the NetXMS team will guide you through the network preparation guidelines, using the NetXMS use case and their hands-on experience to show you the A to Z setup process. There are many ways where you can go wrong in this process, so the team will cover also most popular pitfalls. Please, do come if your areas of interest are network monitoring, administration and architecture, if you’d like to be more efficient in your network audit — and, generally, if you are up for a great 40 minutes spent! Network topology discovery process in focus — a detailed presentation for sysadmins, network engineers, telecom integrators, and everyone interested in networks. FOSDEM'24 Track: Network devroom Room: UB5.230 0:00 – Introduction (About me) 1:08 – Importance of Network Discovery 2:18 – Two parts of Network Discovery: 1 part: 2:31 – Discovering new Devices / Hosts in the Network 2:57 – IP Neighbors (ARP / NDP) 3:24 – Routing Tables 3:57 – Other Sources of information about IP addresses 4:48 – Active Scan 2 part: 5:24 – Discovering Topology (how everything is connected together) 5:44 – Prerequisites for Topology Discovery 6:19 – Preparation steps 7:07 – LLDP (Link Layer Discovery Protocol) 9:07 – CDP (Cisco Discovery Protocol) 9:28 – FDB Data (Switch Forwarding Database) / MAC Address Table 10:31 – STP (Spanning Tree Protocol) 12:06 – Proprietary Protocols 12:29 – Challenges 13:26 – Outro