BGP
Day 57 — Default-Reject eBGP Policy and RFC 8212
1. Opening An eBGP session without an explicit import or export policy can become an accidental trust boundary. RFC 8212 changes that expec...
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BGP
Day 56 — BGP Route Flap Dampening and Update Stability
1. Opening Route flap dampening was created to protect networks from unstable prefixes repeatedly appearing and disappearing. History showe...
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Stream of Knowledge
BGP
Day 55 — BGP Maximum-Prefix Controls and Safe Threshold Design
1. Opening Maximum-prefix is one of the simplest controls that can prevent a peer from overwhelming a routing table or accidentally sending...
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BGP
Day 54 — BGP PIC: Prefix-Independent Convergence and the Data-Plane Fast Path
1. Opening BGP PIC changes the convergence problem from 'recalculate thousands of prefixes after failure' toward 'preinstall or...
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Stream of Knowledge
BGP
Day 53 — BGP NSR and Stateful Switchover: Preserving Control-Plane State
1. Opening Graceful Restart and Nonstop Routing are often grouped together under 'high availability,' but they solve the switchover...
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