Netgear FSM726v3 7200 managed switch v8.x CLI reference manual - Page 277

DiffServ Class Commands Managed Switch CLI Manual, Release 8.0 Use the DiffServ class commands to define traffic classification. To classify traffic, you specify Behavior Aggregate (BA), based on DSCP and Multi-Field (MF) classes of traffic (name, match criteria) This set of commands consists of class creation/deletion and matching, with the class match commands specifying Layer 3, Layer 2, and general match criteria. The class match criteria are also known as class rules, with a class definition consisting of one or more rules to identify the traffic that belongs to the class. Note: Once you create a class match criterion for a class, you cannot change or delete the criterion. To change or delete a class match criterion, you must delete and re-create the entire class. The CLI command root is class-map. class-map This command defines a DiffServ class of type match-all. When used without any match condition, this command enters the class-map mode. The is a case sensitive alphanumeric string from 1 to 31 characters uniquely identifying an existing DiffServ class. Note: The class-map-name 'default' is reserved and must not be used. The class type of match-all indicates all of the individual match conditions must be true for a packet to be considered a member of the class.This command may be used without specifying a class type to enter the Class-Map Config mode for an existing DiffServ class. Note: The optional keywords [{ipv4 | ipv6}] specify the Layer 3 protocol for this class. If not specified, this parameter defaults to 'ipv4'. This maintains backward compatibility for configurations defined on systems before IPv6 match items were supported. Quality of Service (QoS) Commands v1.0, July 2009 5-10