BGP
Day 58 — BGP Roles and the Only-to-Customer (OTC) Attribute
1. Opening Traditional route-leak prevention relies on operators correctly encoding business relationships in policy. RFC 9234 adds a machi...
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Topic
InternetRouting
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Showing posts with label InternetRouting. Show all posts
Showing posts with label InternetRouting. Show all posts
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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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 42 — Peer Groups, Peer Session Templates and Peer Policy Templates
1. Opening Peer groups and templates solve a different scaling problem from route reflectors. They reduce repetitive configuration and poli...
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BGP
Day 41 — BGP Confederations: Sub-AS Design, External View and Migration
1. Opening Confederations are another way to scale BGP inside a large administrative domain. They divide the domain into member autonomous ...
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BGP
Day 40 — Route-Reflector Path Hiding and Optimal Route Reflection
1. Opening Route reflection can hide paths. A reflector generally selects a best path and reflects that view; clients may therefore never l...
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BGP
RETICUX BGP Mastery — Day 39— Redundant and Hierarchical Route Reflectors
1. Opening One route reflector solves session scale but can become a control-plane single point of failure. Adding a second reflector impro...
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BGP
Day 38 — Route Reflectors: Clients, Non-Clients and Reflection Rules
1. Opening Route reflection changes the iBGP propagation model so selected speakers can re-advertise iBGP-learned routes. That removes the ...
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BGP
Day 37 — Why iBGP Full Mesh Does Not Scale
1. Opening iBGP does not automatically relay every route learned from another iBGP peer. That behavior prevents simple internal loops but c...
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