Outbound Route Filtering (ORF) vendor support

Jeffrey Haas jhaas at pfrc.org
Thu Aug 19 15:34:58 UTC 2021

> On Aug 19, 2021, at 9:04 AM, james jones <james.voip at gmail.com> wrote:
> PCRE or death. Tell me if I am wrong, but I thought PCRE was the most widely used regex lib these day anyways. I also thought it was already in Junos.

Junos is a very wide topic.

In Juniper's BGP implementation, there are two regular expression engines: one for communities, one for as-paths.  Neither are PCRE.

The implementation of regular expression matching in high availability software is a bit of a talk all on its own.

-- Jeff

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