HP Cisco Nexus 5000 Cisco Nexus 5000 Series Switch CLI Software Configuration - Page 363

Configuring User Accounts and RBAC About Rules Note If you belong to multiple roles, you can execute a combination of all the commands permitted by these roles. Access to a command takes priority over being denied access to a command. For example, suppose a user has RoleA, which denied access to the configuration commands. However, the users also has RoleB, which has access to the configuration commands. In this case, the users has access to the configuration commands. About Rules The rule is the basic element of a role. A rule defines what operations the role allows the user to perform. You can apply rules for the following parameters: • Command-A command or group of commands defined in a regular expression. • Feature-Commands that apply to a function provided by the Cisco Nexus 5000 Series switch. ◦ Enter the show role feature command to display the feature names available for this parameter. • Feature group-Default or user-defined group of features. ◦ Enter the show role feature-group command to display the default feature groups available for this parameter. These parameters create a hierarchical relationship. The most basic control parameter is the command. The next control parameter is the feature, which represents all commands associated with the feature. The last control parameter is the feature group. The feature group combines related features and allows you to easily manage of the rules. You can configure up to 256 rules for each role. The user-specified rule number determines the order in which the rules are applied. Rules are applied in descending order. For example, if a role has three rules, rule 3 is applied before rule 2, which is applied before rule 1. About User Role Policies You can define user role policies to limit the switch resources that the user can access. You can define user role policies to limit access to interfaces, VLANs and VSANs. User role policies are constrained by the rules defined for the role. For example, if you define an interface policy to permit access to specific interfaces, the user will not have access to the interfaces unless you configure a command rule for the role to permit the interface command. If a command rule permits access to specific resources (interfaces, VLANs or VSANs), the user is permitted to access these resources, even if they are not listed in the user role policies associated with that user. Related Topics • Changing User Role Interface Policies, page 320 Guidelines and Limitations for User Accounts User account and RBAC have the following configuration guidelines and limitations: • You can add up to 256 rules to a user role. OL-16597-01 Cisco Nexus 5000 Series Switch CLI Software Configuration Guide 317