[{"data":1,"prerenderedAt":81},["ShallowReactive",2],{"term-b\u002Fbgp":3,"related-b\u002Fbgp":61},{"id":4,"title":5,"acronym":6,"body":7,"category":40,"description":41,"difficulty":42,"extension":43,"letter":44,"meta":45,"navigation":46,"path":47,"related":48,"seo":54,"sitemap":55,"stem":58,"subcategory":59,"__hash__":60},"terms\u002Fterms\u002Fb\u002Fbgp.md","BGP","Border Gateway Protocol",{"type":8,"value":9,"toc":33},"minimark",[10,15,19,23,26,30],[11,12,14],"h2",{"id":13},"eli5-the-vibe-check","ELI5 - The Vibe Check",[16,17,18],"p",{},"BGP is the protocol that lets the entire internet's independent networks tell each other 'here's how to reach me' and figure out the best path for your data to travel across companies and countries that have never met each other. It's less a single network and more thousands of networks constantly gossiping about routes. It's also famously fragile: one misconfigured router at an ISP has taken down huge chunks of the internet before.",[11,20,22],{"id":21},"real-talk","Real Talk",[16,24,25],{},"BGP is the routing protocol that exchanges reachability information between autonomous systems (independently administered networks) on the internet, determining the path traffic takes between networks based on policy, path length, and other attributes rather than pure shortest-path metrics. It underlies anycast routing, multi-homed connectivity, and cloud provider peering, and BGP misconfigurations (route leaks or hijacks) are a recurring cause of major internet outages.",[11,27,29],{"id":28},"when-youll-hear-this","When You'll Hear This",[16,31,32],{},"\"That outage was a BGP route leak, half of Cloudflare's anycast routes went to the wrong place.\" \u002F \"We're multi-homed with two ISPs and BGP handles the failover automatically.\"",{"title":34,"searchDepth":35,"depth":35,"links":36},"",2,[37,38,39],{"id":13,"depth":35,"text":14},{"id":21,"depth":35,"text":22},{"id":28,"depth":35,"text":29},"networking","BGP is the protocol that lets the entire internet's independent networks tell each other 'here's how to reach me' and figure out the best path for your dat...","advanced","md","b",{},true,"\u002Fterms\u002Fb\u002Fbgp",[49,50,51,52,53],"Anycast","DNS Failover","Load Balancer","VPC Peering","CDN",{"title":5,"description":41},{"changefreq":56,"priority":57},"weekly",0.7,"terms\u002Fb\u002Fbgp",null,"iCotD81-JqClTWiplxHsFpBI5NWSzxdaYxF-QhwKP2Q",[62,66,71,75,78],{"title":49,"path":63,"acronym":59,"category":64,"difficulty":42,"description":65},"\u002Fterms\u002Fa\u002Fanycast","cloud","Anycast is a networking trick where the same IP address exists in multiple locations.",{"title":53,"path":67,"acronym":68,"category":64,"difficulty":69,"description":70},"\u002Fterms\u002Fc\u002Fcdn","Content Delivery Network","beginner","A CDN is a network of servers spread around the world that store copies of your files.",{"title":50,"path":72,"acronym":59,"category":40,"difficulty":73,"description":74},"\u002Fterms\u002Fd\u002Fdns-failover","intermediate","DNS failover is having a health checker constantly poke your primary server, and the moment it stops answering, quietly swapping the DNS answer to point ev...",{"title":51,"path":76,"acronym":59,"category":40,"difficulty":73,"description":77},"\u002Fterms\u002Fl\u002Fload-balancer","A load balancer is like a traffic cop for servers.",{"title":52,"path":79,"acronym":59,"category":64,"difficulty":42,"description":80},"\u002Fterms\u002Fv\u002Fvpc-peering","VPC Peering is like building a private bridge between two walled cities.",1792528064242]