Cisco ISE - What does "Multiple Matched Rule Applies" mean?

Question

Hi,
In Cisco ISE authroiztion policy configuration, what does the option "multiple matched rule applies" mean? I can understand the "first matched rule", but in "multiple matched rule" how is the "permissions picked if multiple rules match? Or, what is the logic involved in picking up the permissions, if multiple rules are matched in authorization policy.
No where in cisco document I see any explaination for this.
Would appreciate if any one can point me to  a document or explain me the login in selecting the persmissions if multiple rules are matched. Also, what would the use-case for this?
Thanks and Regards,
Mohan

Answer 1

I agree with tarik & also this might be helpful for you:
An authorization policy can  consist of a single rule or a set of rules that are user-defined. These  rules act to create a specific policy. For example, a standard policy  can include the rule name using an If-Then convention that links a value  entered for identity groups with specific condition(s) or attributes to  produce a specific set of permissions that create a unique  authorization profile. There are two authorization policy options you  can set:
•First Matched Rules Apply
•Multiple Matched Rule Applies
These two options direct Cisco ISE  to use either the first matched or the multiple matched rule type  listed in the standard policy table when it matches the user's set of  permissions. These are the two types of authorization policies that you  can configure:
•Standard
•Exception
Standard policies are policies  created to remain in effect for long periods of time, to apply to a  larger group of users or devices or groups, and allow access to specific  or all network endpoints. Standard policies are intended to be stable  and apply to a large groups of users, devices, and groups that share a  common set of privileges.
Standard policies can be used as  templates in which you modify the original values to serve the needs of a  specific identity group, using specific conditions or permissions to  create another type of standard policy to meet the needs of new  divisions, or groups of users, devices, or groups in your network.
By contrast, exception policies  are appropriately named because this type of policy acts as an exception  to the standard policies. Exception polices are intended for  authorizing limited access that is based on a variety of factors  (short-term policy duration, specific types of network devices, network  endpoints or groups, or the need to meet special conditions or  permissions or an immediate requirement).
Exception policies are created to  meet an immediate or short-term need such as authorizing a limited  number of users, devices, or groups to access network resources. An  exception policy lets you create a specific set of customized values for  an identity group, condition, or permission that are tailored for one  user or a subset of users. This allows you to create different or  customized policies to meet your corporate, group, or network needs.
http://www.cisco.com/en/US/docs/security/ise/1.0/user_guide/ise10_authz_polprfls.html