# BGP Role model: tracking the adoption of RFC 9234

DevFeed: [BGP Role model: tracking the adoption of RFC 9234](<https://devfeed.tech/articles/bgp-role-model-tracking-the-adoption-of-rfc-9234-119.md>)

Original publisher: [Read original article](<https://blog.cloudflare.com/rfc9234-bgp-role-model/>)

Author: Mingwei Zhang

Published: 2026-08-18T15:21:32Z

Content type: article

Language: en

Sources: [Cloudflare Blog](<https://devfeed.tech/sources/cloudflare-blog.md>)

Topics: [BGP](<https://devfeed.tech/topics/bgp.md>), [networking](<https://devfeed.tech/topics/networking.md>), [Networks](<https://devfeed.tech/topics/networks.md>), [Routing (disambiguation)](<https://devfeed.tech/topics/routing.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Cloudflare](<https://devfeed.tech/topics/cloudflare.md>), [Monitoring](<https://devfeed.tech/topics/monitoring.md>)

Tags: [analysis](<https://devfeed.tech/tags/analysis.md>), [bgp](<https://devfeed.tech/tags/bgp.md>), [cloudflare](<https://devfeed.tech/tags/cloudflare.md>), [internet](<https://devfeed.tech/tags/internet.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [network](<https://devfeed.tech/tags/network.md>), [networks](<https://devfeed.tech/tags/networks.md>), [research](<https://devfeed.tech/tags/research.md>), [router](<https://devfeed.tech/tags/router.md>), [routing](<https://devfeed.tech/tags/routing.md>), [routing-security](<https://devfeed.tech/tags/routing-security.md>), [rpki](<https://devfeed.tech/tags/rpki.md>)

## AI overview

This article examines the adoption of RFC 9234, which uses BGP Roles and the Only to Customer (OTC) attribute to help routers prevent and detect route leaks. Cloudflare measured deployment through its global peering presence and found that two large Tier-1 networks were stripping OTC attributes from forwarded routes.

## Source excerpt

RFC 9234 lets routers reject route leaks on their own, using BGP Roles and the Only to Customer attribute. We measured who has deployed it, and found two Tier 1 networks unexpectedly stripping OTC.