Cisco Systems ASR 1000 manual Remote Source Address Mask Filtering, RTP Specific Behavior Support

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Chapter 7 H.248 Services—Signaling and Control

Remote Source Address Mask Filtering

Remote Source Address Mask Filtering

The Remote Source Address Mask Filtering feature is described in the “Remote Source Address Mask Filtering” section on page 8-5.

RTP Specific Behavior Support

This feature adds support for the Real-time Transport Protocol (RTP) Specific Behavior (rsb) property of the ETSI TS 102 333 version 1.1.2 Gate Management (GM) package. This support allows the media gateway controller (MGC) to disable RTP-specific behavior for a given termination. In this case, the MGC overrides the default DBE behavior for RTP flows.

Terminations representing gates for RTP traffic typically require two streams per media (one for RTP packets, one for RTCP packets). Mono-media sessions require two bi-directional streams, while a multimedia session with voice and video traffic would require four streams.

Setting the property value to OFF overrides the default DBE behavior in the following ways:

•The DBE does not open the RTCP port for the given RTP flow. However, the RTCP port is not available for use by other flows.

•The DBE does not reserve additional resources (equal to 5 percent of those required for the RTP flow) for processing the RTCP stream.

DBE Restrictions

The following is a restriction of DBE support for this feature:

•Enabling or disabling this property value is only valid for RTP flows. It is ignored for other types of flows.

ServiceChange Notification for Interface Status Change

This feature enables the media gateway (MG) to generate a ServiceChange H.248 notification to the media gateway controller (MGC) containing the termination ID of the physical interface on the data border element (DBE) when the interface experiences status changes. The termination ID is a nine-tier namestring associated with a pinhole or pair of terminations and it contains a physical-interface-id supplied by the user. For example, the MG notifies the MGC when a group of terminations is taken out of service (link down) or returned to service (link up).

Although notification of interface status changes can be obtained via SNMP, this feature provides a more reliable transport than SNMP and consolidates the information on the MGC for simpler management.

The MGC is also referred to as a signaling border element (SBE).

In order for the SBE to be informed about status changes on a physical interface on the DBE, you can use the sbc interface-idcommand to map that physical interface to the physical-interface-id contained in the termination ID. Thus the SBE is able to associate status changes on the physical interface with a pinhole. The command inserts the termination ID in the ServiceChange H.248 message. Therefore, when the physical interface changes status, the MG is able to report a service change with that particular termination ID to the SBE.

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

 

OL-15421-01

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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 Contents Cisco ASR 1000 Series Routers OverviewGeneral 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 Configuring Integrated Session Border Controller Prerequisites for Integrated Session Border ControllerRestrictions 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 intoTroubleshooting Tips What To Do NextExamples 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 Configuration Examples This section provides the following configuration examplesExample H.248 Log Output 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 InterworkingConfiguring Default Duration of a Dtmf Event RTP to SIP InterworkingSIP to RTP 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 Restrictions for Configuring Media Address Pools Media Address PoolsPrerequisites for Implementing Media 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 Dscp Marking and IP Precedence Marking Dscp Re-MarkingsParameters on AC and per SDP on Rtcp Policing Rtcp Policing Using Tman PackageRtcp Policing Not Using Tman Package QoS Bandwidth AllocationTwo-Rate Three-Color Policing and Marking Enabling Two-Rate Three-Color Policing and MarkingImplementing 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 Multi-Stream Terminations Nine-Tier Termination Name HierarchyRestrictions for Nine-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 ServiceChange Notification for Interface Status Change Remote Source Address Mask FilteringRTP Specific Behavior Support 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 High Availability Support Integrated Session Border Controller High Availability10-1 10-2 Hardware RedundancySoftware Redundancy Route Processor Redundancy RPRSSO Support Issu Support10-3 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 DeletionMiddlebox Pinhole Timer Expired Event Network Package Quality Alert Event11-5 Provisioned Inactivity Timer Related Command11-6 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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