# Cloudflare finds two Tier-1 networks stripping BGP leak-prevention signal

_Tuesday, August 18, 2026 at 11:21 AM EDT · Infrastructure · Latest · Tier 2 — Notable_

![Cloudflare finds two Tier-1 networks stripping BGP leak-prevention signal — Primary](https://blog.cloudflare.com/_emdash/api/media/file/01M0AQBNRWA9R7N2QNSV1B454C.png)

Cloudflare said its measurements of RFC 9234 adoption found that two large Tier-1 networks strip the Only to Customer, or OTC, attribute from routes they forward. RFC 9234 uses BGP Roles and the OTC attribute to encode network relationships and help routers reject route leaks. Cloudflare said it has been engaging the networks to permit OTC propagation. The company did not name the networks or report a resolution.

## Sources

- [The Cloudflare Blog](https://blog.cloudflare.com/rfc9234-bgp-role-model/)

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Canonical: https://techandbusiness.org/newswire/pOc38BEERGpb6bbSKQTwCz
Retrieved: 2026-08-18T18:30:24.872Z
Publisher: Tech & Business (techandbusiness.org)