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Terms and Acronyms for SCU

destination class usage (DCU)

A method of grouping certain types of traffic and monitoring these groups through CLI show commands, accounting profiles, or SNMP. DCU uses a destination address lookup when determining group membership. For more information about DCU, see the Junos Policy Framework Configuration Guide.

source class usage (SCU)

A method of grouping certain types of traffic and monitoring these groups through CLI show commands, accounting profiles, or SNMP. SCU uses a source address lookup when determining group membership. For more information about SCU, see the Junos Policy Framework Configuration Guide.

source address (SA)

The IP address of a device sending a packet. This address is included in the IP header and is analyzed by the router for a variety of services, including source-based filtering, policing, class of service (CoS), and SCU.

destination address (DA)

The IP address of a device intended as the receiver for a packet. This address is included in the IP header and is the main address analyzed by the router during routing table lookups and DCU.