{"product_id":"octet-field-manual-4","title":"The Octet Operator Survival Guide — Field Manual 4 · Routed Networks, Multicast \u0026 Storms","description":"\u003cp\u003e\u003cstrong\u003eRouted L3 vs flat L2: spanning-tree, multicast, IGMP\/PIM, broadcast storms\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy the end of Field Manual 4 you stop treating the network as a black box you reboot and pray over. You learn how Layer 2 and Layer 3 behave under media load, why a real managed switch is mandatory and a hub is physically impossible, how to carve one fabric into isolated lanes with VLANs, how multicast moves one stream to many receivers without melting the facility, and how IGMP and PIM keep that traffic contained instead of flooding. Then the big one. A single bad address turns into a storm that takes the whole facility down in milliseconds, and there's a five-step sequence to kill one while it's happening. You walk out able to read \"missing video\" as a forwarding problem, not a cable problem. You become the one who breaks the loop instead of the one watching the wall lose the picture.\u003c\/p\u003e","brand":"Thomson Visuals","offers":[{"title":"Default Title","offer_id":45718392143925,"sku":null,"price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0287\/6122\/7317\/files\/fm4-ed_70c25857-dd03-4945-ba74-e3b6bd17e88a.png?v=1783543288","url":"https:\/\/thomsonvisuals.com\/products\/octet-field-manual-4","provider":"Thomson Visuals","version":"1.0","type":"link"}