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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 45 Configuring AVC with DNS-AS
Configuring AVC with DNS-AS
Generating Metadata Streams
Application metadata is configured and saved on the local, authoritative DNS server. You configure
application classification information, for each trusted domain, in a prescribed format (a metadata
stream). This is the information that the server propagates to switches when queried for application
metadata. When the switch sends a TXT query regarding an application, the DNS server sends the
relevant metadata in the TXT response.
To generate metadata streams, perform the following task:
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