When is an anycast ip an anycast ip ? that’s a question i was asked recently. As LTNN (Long Term Networking Nerd), i’m aware of Unicast, Multicast, Broadcast and also Anycast. so, let’s have a look into this. hint: this article is not about how to setup your own anycast network. this may follow soon ?!? Terminologie Unicast 1:1 Sending a message from one sender to one recipient Multicast 1:many Sending a message from one sender to multiple recipients
Setup Let’s assume we have 3 Nodes in a Docker Swarm Setup. Tick Trick Track Track is the Leader/Manager. All Machines runs Debian 12.0 (RC, as it is not yet released) Show Nodes docker node ls root@track:~# docker node ls ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS ENGINE VERSION b2zvkc374v08q2rpocljhkg5n tick Ready Active 23.0.2 khom3cx05bxqxktjq1k5j16gk * track Ready Active Leader 23.0.2 lq53s6mhuzvqrehks0j68sr3e trick Ready Active 23.0.2 Create Simple Service Run a simple Docker service that uses an alpine-based filesystem, and isolates a ping to 8.