Cisco Systems 3.5 manual Cross Server Session and Resource Management, Overview, Outgoing Scripts

Page 27

Chapter 2 Understanding Cisco Access Registrar

Cross Server Session and Resource Management

Overall Flow Sequence

Authentication/Authorization Scripts

 

 

10)

User Authorization.

 

 

11)

Session Management.

 

 

Table 2-8 Cisco Access Registrar Processing Hierarchy for Outgoing Scripts

Overall Flow Sequence

Outgoing Scripts

 

 

12)

Service

 

 

13)

Specific NAS.

 

 

14)

Vendor of the specific NAS.

 

 

15)

Immediate client.

 

 

16)

Vendor of the immediate client.

 

 

17)

Radius

 

 

Cross Server Session and Resource Management

Prior to Cisco AR1.6, sessions and resources were managed locally, meaning that in a multi-AR server environment, resources such as IP addresses, user-based session limits, and group-based session limits were divided between all the Cisco ARservers. It also meant that, to ensure accurate session tracking, all packets relating to one user session were required to go to the same Cisco ARserver.

Overview

Cisco Access Registrar 1.6 and above can manage sessions and resources across AAA server boundaries. A session can be created by an Access-Request sent to AR1, and it can be removed by an Accounting-Stop request sent to AR2, as shown in Figure 2-1. This enables accurate tracking of User and Group session L across multiple AAA servers, and IP addresses allocated to sessions are managed in one place.

Figure 2-1 Multiple Cisco AR Servers

AR1

 

AR2

Central Resource AR

AR3

45640

 

All resources that must be shared cross multiple front line Cisco AR servers are configured in the Central Resource Cisco AR server. Resources that are not shared can still be configured at each front line Cisco AR server as done prior to the Cisco AR 1.6 release.

Cisco Access Registrar 3.5 Concepts and Reference Guide

 

OL-2683-02

2-9

 

 

 

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Contents Corporate Headquarters Cisco Access Registrar 3.5 Concepts and Reference GuideCisco Access Registrar 3.5 Concepts and Reference Guide Iii N T E N T SSession-Service Service Step and Radius-Session Service Replication’s Impact on Request Processing IPAddress Port Understanding Snmp Vii Accounting Start Data FlowViii World Wide Web Obtaining DocumentationCisco.com Obtaining Technical AssistanceOrdering Documentation Documentation FeedbackContacting TAC by Using the Cisco TAC Website Technical Assistance CenterContacting TAC by Telephone Xii Radius Protocol OverviewPacket Exchange Between User, NAS, and Radius Steps to ConnectionTypes of Radius Messages Packet ContentsAttribute Dictionary Proxy ServersProxying to an Ldap Server for Authentication Basic Authentication and AuthorizationOverview Basic Authentication and Authorization Cisco Access Registrar Hierarchy Understanding Cisco Access RegistrarScripts ServicesUserLists and Groups ProfilesSession Management Using Resource Managers Cisco AR Directory Structure Program FlowSubdirectory Description Action Explanation Scripting PointsClient or NAS Scripting Points Cisco AR Server Action ExplanationRadius/Advanced/RequireNASsBehindProxyBeInClie Authentication and/or Authorization Scripting PointsFailover by the NAS and Session Management Session ManagementAuthentication/Authorization Scripts Script Processing HierarchyIncoming Scripts Cross Server Session and Resource Management OverviewOutgoing Scripts Configuring a Front Line Cisco Access Registrar Session-Service Service Step and Radius-Session ServiceConfigure Central AR OL-2683-02 Using Cisco AR Scripts ACMEOutgoingScriptAltigaIncomingScript AscendIncomingScript AuthorizeServiceAltigaOutgoingScript ANAAAOutgoingCiscoIncoming AuthorizeTelnetCabletronIncoming CabletronOutgoingExecNASIPRule ExecTimeRuleExecDNISRule ExecFilterRuleParseAAASRealm LDAPOutageMapSourceIPAddress ParseAAARealmParseServiceAndAASRealmHints ParseServiceAndAAARealmHintsParseServiceAndAAASRealmHints ParseServiceAndAARealmHintsParseTranslationGroupsByRealm ParseServiceHintsParseTranslationGroupsByCLID ParseTranslationGroupsByDNISUSROutgoingScript Replication Overview Understanding ReplicationHow Replication Works Replication Data FlowMaster Server Slave Server SecurityReplication Archive Ensuring Data IntegrityTransaction Data Verification Transaction OrderAutomatic Resynchronization Replication’s Impact on Request Processing Replication Configuration SettingsUnderstanding Hot-Configuration Full ResynchronizationMaster RepTypeRepTransactionSyncInterval RepTransactionArchiveLimitRepIPMaster RepIPAddressRepPort RepSecretIPAddress Rep Members SubdirectoryRep Members/Slave1 NameSupported MIBs OverviewRADIUS-AUTH-SERVER-MIB Snmp TrapsCarInputQueueFull Supported TrapsCarServerStart CarServerStopCarOtherAuthServerNotResponding CarOtherAuthServerRespondingCarOtherAccServerNotResponding Directories Searched Configuring TrapsCarOtherAccServerResponding CarAccountingLoggingFailureSwitching Configuration Files in Mid-File Configuration File TypesCommunity String OL-2683-02 Prepaid Billing Solution Measurements and Component Actions Configuring Prepaid Billing Call Flow Details Generic Call FlowAttribute Number Attribute Name Description Access-Request AuthenticationAccess-Accept Authentication Access-Request AuthorizationAccess-Accept Authorization Accounting Start Data FlowAttribute Number Attribute Name Accept-Accept Quota Depleted Access-Request Quota DepletedAccounting Response Final Status Accounting Stop Session EndSource VSA Name Type Call Flow Description Vendor-Specific AttributesTotal Volume quota received by Crbprivate GL-1 O S S a R YGL-2 Scalable wholesale access/open access solutionGL-3 GL-4 GL-5 GL-6 GL-7 GL-8 GL-9 GL-10 IN-1 RadiusIN-2 RFCIN-3 IN-4
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3.5 specifications

Cisco Systems 3.5 is an advanced version of Cisco's renowned networking and security solutions. This iteration showcases significant enhancements in performance, scalability, and security, making it a preferred choice for enterprises aiming to optimize their network operations and bolster their cybersecurity posture.

One of the main features of Cisco Systems 3.5 is its enhanced network automation capabilities. Automation streamlines network management, allowing organizations to apply consistent policies across their infrastructure while minimizing human error. This version employs advanced algorithms and machine learning to predict and rectify network issues proactively. With automation tools, network administrators can configure, monitor, and troubleshoot their networks with unprecedented efficiency.

Another notable characteristic of Cisco Systems 3.5 is its integration of artificial intelligence and machine learning into networking processes. The incorporation of AI enhances decision-making by analyzing vast amounts of network data, identifying patterns, and offering insights that help ensure optimal performance. This predictive analytics capability allows organizations to predict potential disruptions before they impact operations.

Security is a major focus in Cisco Systems 3.5. The platform introduces advanced threat detection and response systems that utilize deep learning to identify and mitigate emerging threats in real-time. Enhanced encryption protocols ensure that data transmitted over the network remains secure, protecting sensitive information from cyber threats. The integrated security features ensure compliance with various regulatory standards, a crucial requirement for businesses across multiple sectors.

The platforms' support for Software-Defined Networking (SDN) allows for dynamic resource allocation and traffic management. This flexibility enables organizations to adjust their network resources quickly in response to changing demands, leading to improved efficiency and reduced operational costs. Cisco Systems 3.5 also supports multicloud environments, facilitating seamless integration with cloud services such as AWS, Google Cloud, and Microsoft Azure.

Moreover, Cisco Systems 3.5 offers robust telemetry features, providing detailed real-time insights into network performance and health. This data-driven approach allows organizations to make informed decisions regarding capacity planning and resource optimization.

In summary, Cisco Systems 3.5 combines cutting-edge technologies such as AI, machine learning, and SDN to deliver a comprehensive networking solution. With its focus on automation, enhanced security, and multicloud support, this version is well-suited for modern enterprises looking to enhance their network infrastructure and security measures. As organizations continue to evolve in a digital-centric world, Cisco Systems 3.5 stands out as a critical tool to achieve connectivity and security goals effectively.
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