Cisco Systems ASR 1000 manual Session Failure Reaction Package

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Chapter 6 H.248 Packages—Signaling and Control

H.248 Session Failure Reaction Package

Segmentation package support includes the following functionality:

•If the media gateway controller (MGC) does not receive all the message segments or expected segmented responses, it sends error 459.

•If the MGC receives all the segmented responses, but the DBE does not receive a TransactionResponseAcknowledgement, then the DBE cannot send an error message because this behavior is not defined in the H.248 specification.

DBE Restrictions

The following are restrictions of DBE support for the Segmentation package:

•The DBE must support H.248 segmentation in addition to this package to negotiate the segmentation properties with MGC.

•The DBE only supports sending of segmented messages; the DBE does not support receiving of segmented messages from the MGC.

•The DBE can send segmented messages only over UDP and can send segmented messages to H.248.1v3 MGCs only. The DBE generates an error message when it receives segmented messages over Transmission Control Protocol (TCP) connections from MGCs. The DBE sends unsegmented messages over TCP or UDP.

•The maximum segment size is subject to the segmentation configuration and the maximum buffer size.

Related Commands

The package segment max-pdu-sizecommand is used to enable the Segmentation package and specify the maximum PDU size that UDP should use for H.248 control signaling. The package is enabled by configuring the maximum PDU size to a value other than 0. A value of 0 disables the package. By default, the Segmentation package is disabled.

The show sbc dbe controllers command has been modified to include H.248 Segmentation statistics on the DBE.

H.248 Session Failure Reaction Package

The Session Failure Reaction (sfr) package enables a media gateway controller (MGC) to instruct a media gateway (MG) to put a specified termination in the OutOfService state (either gracefully or forcefully) at the point where the H.248 association between them is lost. Putting a termination in an OutOfService state is used to prevent signaling messages from reaching the call agent in case of failure or administrative shutdown of MGC and MG communication.

The sfr package includes the following functionality:

•The specifications on signaling pinholes, termination ID structure, and validation of termination name from the Termination State Control (tsc) package also apply to the sfr package.

•The deactivation timer is started when the H.248 association between the MGC and MG is lost. The deactivation timer is cancelled if an association is regained.

•Media timeout is always enabled when the H.248 association 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 Iii N T E N T SQoS Bandwidth Allocation Traffic Management Package Support Local Source Properties Address and Port Vii IPv6 SupportEvents Storage Until Event Acknowledgment OL-15421-01 May 5 This document was first published PrefaceDocument Revision History ObjectivesOrganization Intended AudienceCisco IOS Release 12.2SR Software Publications Related DocumentationDocument Conventions Cisco ASR 1000 Series Router DocumentationXii Xiii Obtaining Documentation and Submitting a Service RequestXiv General Overview ContentsCisco ASR 1000 Series Routers Overview Example of SBC High Level Architecture Distributed and Unified ModelsOn page 1-3illustrates the unified model Release Feature Name Related SBC Commands Documented Supported Integrated Session Border Controller FeaturesPackage segment XE Release Cisco IOS Logging Level in ConfiguringCisco IOS NoneMedia-address ipv4 Deployment of the Integrated Session Border Controller Transaction-pending commandIntegrated 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 Summary Steps PrerequisitesEnters into interface configuration mode Enables privileged Exec modeEnter your password if prompted Enters global configuration modeController H.248 configuration mode Configures the DBE to use a specific IPv4 H.248 controlOwn address when connecting to the SBE Configures the H.248 controller for the DBE and enters intoExamples Troubleshooting TipsWhat To Do Next Configuring H.248 Logging Level Messages sent and received. Turns on console Creates the DBE service on the SBC and enters intoSBC-DBE configuration mode Sets a specified logging level to generate detailed logsEnabling 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 == Make change to local port Following example shows the initial SBC configurationControl-address h248 ipv4 172.25.2.26 controller h248 Making Changes to Individual Controller Settings ExampleOverview of Profile Topology Priority Indicator Yes Emergency IndicatorIeps Indicator Yes Cisco H.248 ProfilePackage ID Version Profile PackagesPackage ID Version Support Dependent On Information About Dtmf Interworking Dtmf InterworkingSIP to RTP Interworking Configuring Default Duration of a Dtmf EventRTP to SIP Interworking Configures the default duration of a Dtmf event Enters the mode of a DBE service and enters into SBC-DBEConfiguration mode. Use the sbc-name argument to specify Name of the DBE servicePage Prerequisites for Implementing Media Address Pools Restrictions for Configuring Media Address PoolsMedia Address Pools Information About Media Address Pools Configuring Media Address PoolsCreates a port range for the configured media Is configuredEnters into SBC-DBE configuration mode Configuration modeConfiguring Media Address Pools Example Traffic Management Package Support Quality of Service and Bandwidth ManagementPage Parameters on AC and per SDP on Dscp Marking and IP Precedence MarkingDscp Re-Markings Rtcp Policing Rtcp Policing Using Tman PackageRtcp Policing Not Using Tman Package QoS Bandwidth AllocationImplementing 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 Enabling Optional H.248 Packages Packages-Signaling and ControlSegmentation Package Support Address Reporting PackageSession Failure Reaction Package Termination State Control Package Tsc-quiesce FeatureTsc-suspend Feature Vlan Package Syntax-Level Support 248.1v3 SupportMGC-Controlled Gateway-Wide Properties Page Services-Signaling and Control DBE Signaling Pinhole Support Extension to H.248 Termination Wildcarding Support Extension to H.248 Audit SupportFlexible Address Prefix Provisioning No Napt Pinhole Hairpinning Local Source Properties Address and PortLocally Hairpinned Sessions Twice Napt Pinhole HairpinningMGC-Specified Local Addresses or Ports Restrictions for Nine-Tier Termination Name Hierarchy Multi-Stream TerminationsNine-Tier Termination Name Hierarchy Displaying the Nine-Tier Termination Name Hierarchy Information About Nine-Tier Termination Name HierarchyAbc/voice/gn/0/1/0/1/ac/3 Displaying the Nine-Tier Termination Name Hierarchy ExampleOptional 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 Video on Demand VOD Support MAX TimerTsc-Delay Timer Tmax-timercommand configures the value of the T-MAX timerServices-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 Latch and Relatch Support Interim Authentication Header SupportLocal Source Properties Address and Port Etsi TS 102 333 version 1.1.2 Gate Management Package Napt and NAT TraversalTraffic Management Policing Topology HidingTopology Hiding IPv6 Inter-Subscriber Blocking IPv4 Twice NaptRouter# show run interface gigabitEthernet 0/1.1101 QoS Policy-Map-Based Inter-Subscriber Blocking MethodRouter# show class-map IPv6intersubscriber ACL-Based Inter-Subscriber Blocking Method IPv6 SupportIPv6 No Napt Support for Media Flows IPv6 PinholesSend Recv IPv6 Single Napt for SignalingSingle Napt Signaling Flow No Napt Pinholes Topology Hiding No Napt Pinholes 10-1 High Availability SupportIntegrated Session Border Controller High Availability 10-2 Hardware RedundancySoftware Redundancy Route Processor Redundancy RPR10-3 SSO SupportIssu Support High Availability Support Issu Support 10-411-1 Quality Monitoring and Statistics GatheringEnhanced Event Notification and Auditing Congestion-threshold CommandBilling and Call Detail Records DBE Status Notification11-3 Retention and Returning of H.248 Event Information11-4 Association ResetResetting the Media Timeout Timers Silent Gate Deletion11-5 Middlebox Pinhole Timer Expired EventNetwork Package Quality Alert Event 11-6 Provisioned Inactivity TimerRelated Command IN-1 IN-2 IN-3 IN-4 Pinhole Pinhole timeoutPolicing Asymmetric policing Ipv6 packets RTP specific behavior support SBEIN-5 IN-6
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