nanog mailing list archives

Re: Outbound Route Filtering (ORF) vendor support


From: Jeffrey Haas <jhaas () pfrc org>
Date: Thu, 19 Aug 2021 11:34:58 -0400



On Aug 19, 2021, at 9:04 AM, james jones <james.voip () 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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