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.
