Cisco Systems ASR 1000 manual Association Reset, Silent Gate Deletion, 11-4

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Chapter 11 Quality Monitoring and Statistics Gathering

Enhanced Event Notification and Auditing

Association Reset

Aconfiguration option (the h248-association-timeoutcommand) has been added that allows an alternative association reset behavior. The possible options are:

•The it/ito event is the only event where failure to notify the SBE about it causes the H.248 association with the SBE to be reset. (This behavior is the default and the standard H.248 protocol behavior.)

•Failure of any event notification causes an H.248 association with the SBE to be reset.

Silent Gate Deletion

To prevent silent gate deletion, a configuration option (the h248-preserve-gatescommand) has been added that allows you to block this behavior. When silent gate deletion is blocked, all gates (media terminations and contexts) remain on the device until they are deleted by the SBE or the DBE service is deactivated.

Resetting the Media Timeout Timers

The DBE will stop re-arming the media timeout timers after a pinhole timeout occurs. As a result, the receipt of a packet on a pinhole on which a media timeout has occurred will not generate a media-up notification, or restart the timer again.

The media timeout timers can be restarted by the MGC by its sending in a Modify request for the pinhole. An example of a Modify request is to change the state of an H.248 event subscription. In this case, the Modify request takes the call on hold or off hold and the DBE forwarding process changes the nt/qualert event subscription, which, in turn, restarts the media timeout timers.

DBE Restrictions

The following are DBE restrictions for Enhanced Event Notification and Auditing:

•After the DBE has determined that the Notify message for a given event occurrence has failed, it does not attempt to send the Notify message again.

•The event buffering model of DBE is unchanged. The DBE continues to detect and report events that match the current events descriptor.

•Receipt of a transaction response acknowledgement for an AuditValue response is not used to clear the ObservedEvents descriptor.

Related Commands

The h248-event-storagecommand enables permanent H.248 event storage, which retains all H.248 events until the stream on which they occurred is deleted.

The h248-association-timeoutcommand configures the DBE to reset associations with a SBE when the controller does not respond to an event notification.

The h248-preserve-gatescommand configures the DBE to preserve the media terminations or contexts when there is a media timeout while the association with the controller is down.

 

 

 

Cisco IOS XE Integrated Session Border Controller Configuration Guide for the Cisco ASR 1000 Series Aggregation Services Routers

 

 

 

 

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Contents Americas Headquarters Page N T E N T S IiiQoS Bandwidth Allocation Traffic Management Package Support Local Source Properties Address and Port IPv6 Support ViiEvents Storage Until Event Acknowledgment Preface Document Revision HistoryObjectives OL-15421-01 May 5 This document was first publishedIntended Audience OrganizationRelated Documentation Document ConventionsCisco ASR 1000 Series Router Documentation Cisco IOS Release 12.2SR Software PublicationsXii Obtaining Documentation and Submitting a Service Request XiiiXiv General Overview ContentsCisco ASR 1000 Series Routers Overview Distributed and Unified Models Example of SBC High Level ArchitectureOn page 1-3illustrates the unified model Supported Integrated Session Border Controller Features Release Feature Name Related SBC Commands DocumentedPackage segment Cisco IOS Logging Level in Configuring Cisco IOSNone XE ReleaseMedia-address ipv4 Transaction-pending command Deployment of the Integrated Session Border ControllerIntegrated SBC Used for VoIP Interworking Integrated Session Border Controller DBE Deployment Scenario Restrictions for Integrated Session Border Controller Configuring Integrated Session Border ControllerPrerequisites for Integrated Session Border Controller Prerequisites Summary StepsEnables privileged Exec mode Enter your password if promptedEnters global configuration mode Enters into interface configuration modeConfigures the DBE to use a specific IPv4 H.248 control Own address when connecting to the SBEConfigures the H.248 controller for the DBE and enters into Controller H.248 configuration modeExamples Troubleshooting TipsWhat To Do Next Configuring H.248 Logging Level Creates the DBE service on the SBC and enters into SBC-DBE configuration modeSets a specified logging level to generate detailed logs Messages sent and received. Turns on consoleEnabling H.248 Logging Requests and Responses Example H.248 Log Output Configuration ExamplesThis section provides the following configuration examples SBC DBE Configuration Steps Example Making Global Changes to Controllers Example Following example shows the initial SBC configuration == Make change to local portMaking Changes to Individual Controller Settings Example Control-address h248 ipv4 172.25.2.26 controller h248Topology Priority Indicator Yes Emergency Indicator Ieps Indicator YesCisco H.248 Profile Overview of ProfileProfile Packages Package ID VersionPackage ID Version Support Dependent On Dtmf Interworking Information About Dtmf InterworkingSIP to RTP Interworking Configuring Default Duration of a Dtmf EventRTP to SIP Interworking Enters the mode of a DBE service and enters into SBC-DBE Configuration mode. Use the sbc-name argument to specifyName of the DBE service Configures the default duration of a Dtmf eventPage Prerequisites for Implementing Media Address Pools Restrictions for Configuring Media Address PoolsMedia Address Pools Configuring Media Address Pools Information About Media Address PoolsIs configured Enters into SBC-DBE configuration modeConfiguration mode Creates a port range for the configured mediaConfiguring Media Address Pools Example Quality of Service and Bandwidth Management Traffic Management Package SupportPage Parameters on AC and per SDP on Dscp Marking and IP Precedence MarkingDscp Re-Markings Rtcp Policing Using Tman Package Rtcp Policing Not Using Tman PackageQoS Bandwidth Allocation Rtcp PolicingImplementing Two-Rate Three-Color Policing and Marking Two-Rate Three-Color Policing and MarkingEnabling Two-Rate Three-Color Policing and Marking DBE Restrictions Related Commands Page Packages-Signaling and Control Enabling Optional H.248 PackagesAddress Reporting Package Segmentation Package SupportSession Failure Reaction Package Tsc-quiesce Feature Termination State Control PackageTsc-suspend Feature 248.1v3 Support Vlan Package Syntax-Level SupportMGC-Controlled Gateway-Wide Properties Page Services-Signaling and Control DBE Signaling Pinhole Support Extension to H.248 Audit Support Extension to H.248 Termination Wildcarding SupportFlexible Address Prefix Provisioning Local Source Properties Address and Port Locally Hairpinned SessionsTwice Napt Pinhole Hairpinning No Napt Pinhole HairpinningMGC-Specified Local Addresses or Ports Restrictions for Nine-Tier Termination Name Hierarchy Multi-Stream TerminationsNine-Tier Termination Name Hierarchy Information About Nine-Tier Termination Name Hierarchy Displaying the Nine-Tier Termination Name HierarchyDisplaying the Nine-Tier Termination Name Hierarchy Example Abc/voice/gn/0/1/0/1/ac/3Optional Local and Remote Descriptors RTP Specific Behavior Support ServiceChange Notification for Interface Status ChangeRemote Source Address Mask Filtering Sbc interface-id value End Configuration Example Output MAX Timer Tsc-Delay TimerTmax-timercommand configures the value of the T-MAX timer Video on Demand VOD SupportServices-Signaling and Control Video on Demand VOD Support Services-Signaling and Control Video on Demand VOD Support Integrated Session Border Controller Security Firewall Media Pinhole Control Interim Authentication Header Support Latch and Relatch SupportLocal Source Properties Address and Port Napt and NAT Traversal Etsi TS 102 333 version 1.1.2 Gate Management PackageTopology Hiding Traffic Management PolicingTopology Hiding IPv4 Twice Napt IPv6 Inter-Subscriber BlockingQoS Policy-Map-Based Inter-Subscriber Blocking Method Router# show run interface gigabitEthernet 0/1.1101Router# show class-map IPv6intersubscriber IPv6 Support ACL-Based Inter-Subscriber Blocking MethodIPv6 Pinholes IPv6 No Napt Support for Media FlowsIPv6 Single Napt for Signaling Send RecvSingle Napt Signaling Flow No Napt Pinholes Topology Hiding No Napt Pinholes 10-1 High Availability SupportIntegrated Session Border Controller High Availability Hardware Redundancy Software RedundancyRoute Processor Redundancy RPR 10-210-3 SSO SupportIssu Support 10-4 High Availability Support Issu SupportQuality Monitoring and Statistics Gathering 11-1Congestion-threshold Command Billing and Call Detail RecordsDBE Status Notification Enhanced Event Notification and AuditingRetention and Returning of H.248 Event Information 11-3Association Reset Resetting the Media Timeout TimersSilent Gate Deletion 11-411-5 Middlebox Pinhole Timer Expired EventNetwork Package Quality Alert Event 11-6 Provisioned Inactivity TimerRelated Command IN-1 IN-2 IN-3 Pinhole Pinhole timeout Policing Asymmetric policing Ipv6 packetsRTP specific behavior support SBE IN-4IN-5 IN-6
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