Reflexive DSCP Policy
Cisco Systems
IIJ Research Laboratory
In reviewing the specific use of the Differentiated Services Architecture for supporting the Internet Emergency Preparedness System, we found what we believe is a general issue. This is that even though a client or peer can connect to a server or peer with a predictable DSCP value, the response does not have a predictable DSCP value. We consider the issues, and recommend an approach to application policy regarding the DSCP.