Cisco ORF (Outbound route filtering)

Outbound Route Filtering (ORF) is a Cisco proprietary feature that prevents the unnecessary exchanging of routes that are subject to inbound filtering. This, in turn, minimizes bandwidth across the links and reduces CPU cycles upon the router during the processing of the neighbor UPDATE.

ORF works by the router transmitting its inbound filters to its neighbor, which the neighboring router then applies outbound.

great article on how to do this if you are running Cisco routers and your provider is too.

https://community.cisco.com/t5/networking-documents/bgp-orf-outbound-route-filtering-capability/ta-p/3153286

j2networks family of sites
https://j2sw.com
https://startawisp.info
https://indycolo.net
#packetsdownrange #routethelight

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