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Class of Service Overview
The CoS configuration available for the AS PIC enables you to configure Differentiated Services (DiffServ) code point (DSCP) marking and forwarding-class assignment for packets transiting the AS PIC. You can configure the CoS service alongside the stateful firewall and NAT services, using a similar rule structure. The component structures are described in detail in the Junos OS Class of Service Configuration Guide.
Standards for Differentiated Services are described in the following documents:
- RFC 2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers
- RFC 2475, An Architecture for Differentiated
Services
Note: CoS BA classification is not supported on services interfaces.
For more information about configuring CoS services, see Class-of-Service Properties.
