- 361 -
− 'all' within 'all'
− no nested 'not' conditions
− no nested 'acl' cla ss types
− each class contains at most one referen ced class
• hierarchical service polici es not supported in a class definition
• access list matched by reference o nly, and mu st be sole criterion in a class
− that is, ACL rules copied as class mat ch criteria at time of cla ss creat ion, with class type ' any'
− implicit ACL 'deny all' rule also copied
− no nesting of class type 'acl'
Regarding nested cl asses, referred to here as class referen ces, a given class definition can contain at
most one reference to another class, which can be combined with other match criteria. The referenced
class is truly a reference and not a copy, since additions to a reference d class affect all cla sses that
reference it. Changes to any class definition curre ntly refere nced by any other class must result in valid
class definitions for all derived classes otherwise the change is rejected. A class refe rence may be
removed from a class definition.
The user can display summ ary and detailed information for classes, policies, and services. All
configuration information is accessible via the CLI, Web, and SNMP user interfaces.
le
7.21.1 General Commands
The following characteri stics are configurable for the platform as a whole.
7.21.1.1 diffserv
This command sets the DiffServ operational mode to active. While disabled, the DiffServ configuration is
retained and can be changed, but it is not activated. When enabled, Diffserv services are activated.
Syntax
diffserv
Command Mode
Global Config
7.21.1.2 no diffserv
This command sets the DiffServ operatio nal mode to inactive. While disabled, the DiffServ configuration
is retained and can be changed, but it is not activated. When enabled, Diffserv services are activated.