Re: how about a well-known DOWNGRADE BGP Community? (Was: RTBH Support Across the Industry)
jim deleskie via NANOG <[email protected]>
| Newsgroups | gmane.org.operators.nanog |
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| Message-ID | <CAJL_ZMM0KYKddFMsGA2_-gOER0C4A6KB6URUQ__ey=Kfw+gcuQ@mail.gmail.com> |
I fully support this direction. Job, anything I can do to assist, let me know please -jim On Tue, Aug 4, 2026 at 9:38 AM Job Snijders via NANOG <[email protected]> wrote: > Dear all, > > Following up on the RTBH thread, we'd like to put forward an different > strategy for DoS attack mitigation. Perhaps just as an extra tool in the > toolbox. > > Abstract -- > This document outlines a method to mitigate Denial of Service (DoS) > attacks by using a well-known BGP community named "DOWNGRADE" as signal > to neighboring networks to treat traffic destined towards "DOWNGRADE" > tagged IP prefixes with low precedence. The "downgrade" strategy > offers an appealing alternative to Remote Triggered Blackhole (RTBH) > filtering, because RTBH filtering completes the DoS attack and hampers > the defender's ability to monitor whether the attack is still ongoing. > > Read the full draft document here: > > > https://datatracker.ietf.org/doc/html/draft-spaghetti-grow-downgrade-bgp-community > > Your feedback is most welcome! > > Kind regards, > > Job > _______________________________________________ > NANOG mailing list > > https://lists.nanog.org/archives/list/[email protected]/message/UGA3PTY45ILBQRASIJJVHAF3M57MQQ5I/ > _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/[email protected]/message/XQBBQVQTEKIECEDDE3TAE4BN2GQO5Q7Z/