MUST READ: How to troubleshoot routing protocols session flaps
Did you ever experience an out-of-the-blue BGP session flap after you were running that peering for months? As Dmytro Shypovalov explains in his latest blog post, it’s always MTU (just kidding, of course it’s always DNS, but MTU blackholes nonetheless result in some crazy behavior).
Recent posts in the same categories
BGP
- BGP, EVPN, VXLAN, or SRv6?
- EBGP Load Balancing with BGP Link Bandwidth
- BGP Labs: a Year Later
- Explore and Fix BGP Wedgies
- Looking for a Simple Multihop EBGP Use Case
- Running BGP Labs in GitHub Codespaces
IP routing
- Repost: Campus-Wide Wireless Roaming with EVPN
- On Routing Protocol Metrics
- Setting Source IP Address on Traffic Started by a Multihomed Host
- Reliable ECMP with Static Routing
- When a Device Without an IP Address Wants to Play the IP Game
- Spoofing ICMP Redirects for Fun and Profit