Day Two Cloud 091: BGP School For Cloud People

BGP, the Border Gateway Protocol, is a routing protocol widely used across the Internet and private intranets. Routing devices speak BGP to another to exchange information about how to reach a destination. A familiarity with BGP and its many functions and manifestations is useful for infrastructure pros who set up, manage, and troubleshoot public cloud services. On today’s Day Two Cloud, Ethan Banks and Ned Bellavance dive into essentials about BGP including why it’s so widely used, concepts such as the Autonomous System (AS), the AS number, loop prevention, BGP communities, IBGP, EBGP, and more. Ethan and Ned also discuss BGP in relation to essential cloud services such as VPCs, gateways, and VPNs. Sponsor: Packet Pushers Livestream With Alkira The cloud era requires a clean-sheet approach to networking. Join the Packet Pushers’ inaugural Livestream event on April 22 to find out how the Alkira Network Cloud, our Livestream sponsor, lets you deploy and manage single and multi-cloud networks with built-in visibility, security, and governance–all delivered as-a-service. This free virtual event includes technical deep-dives, roundtable discussions hosted by the Packet Pushers, and use cases, deployment scenarios, and architectures. Go to packetpushers.net/livestream to register. Show Links: AWS Direct Connect virtual interfaces – AWS ExpressRoute circuits and peering – Azure Routing policies and BGP communities – AWS Creating a VPN gateway – Azure About BGP with Azure VPN Gateway – Azure Packetpushers.net/fu – to comment or follow up on this and other podcasts Packetpushers.net/slack – Join the Packet Pushers Slack channel   Transcript:   [00:00:00.120] – Ethan [AD] The packet pushers are live streaming with cloud networking vendor Alkira on April 22nd, 2021. Sign up, attend live, get your questions about clean sheet networking for the Cloud era answered. Visit Packet pusher’s dot net slash live stream to register. That’s packet pusher’s dot net slash lives tream. [/AD] [00:00:24.080] – Ned Welcome to Day Two Cloud. You know, there’s nothing that quite strikes terror into my heart, like the words b, g, p, my goodness, I have no idea what this thing is. [00:00:36.320] I’m pretty sure I have screwed it up countless times and to school me on all things BGP and a little bit of additional routing. We have our own co-host, Mr. Ethan Banks, joining me on this show. Ethan, hello. How are you? Are you ready to talk networking nerdiness? [00:00:53.570] – Ethan Yeah, buddy, let’s do this. I think it’s funny that you said all things BGP, because here’s the joke about BGP. It is such a huge topic. Many books, hundreds of pages in length have been written and many of those are ...