No it doesn't overwrite the firewall filters configured under the interface. Actually the input firewall filter "manually" defined on the interface gets processed first, and then the flowspec filter gets processed. So in a sense you can sort of say the flowspec filter gets implicitly chained after the configured firewall filters.
Sent: 01-20-2022 02:13
From: Unknown User
Subject: Question on BGP FlowSpec
Does a firewall filter installed via BGP FlowSpec overwrite a manually configured firewall filter on an interface?
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