Cisco Systems ASR 1000 manual QoS Bandwidth Allocation, Rtcp Policing Using Tman Package

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Chapter 5 Quality of Service and Bandwidth Management

QoS Bandwidth Allocation

QoS Bandwidth Allocation

The DBE supports QoS bandwidth allocation. The DBE has the ability to limit excess traffic beyond the allocated bandwidth by performing session-based policing. For information on the different types of policing performed by the DBE, see the “H.248 Traffic Management Package Support” section on page 5-1, the “RTCP Policing” section on page 5-4, and the “Two-RateThree-Color Policing and Marking” section on page 5-5.

RTCP Policing

An SBC session may be of two types, media or signaling. The media portion of the call comprises the Real-time Transport Protocol (RTP) stream and, optionally, a Real-time Control Protocol (RTCP) stream. Calls typically have both a RTP and RTCP stream.

Each session may be subject to policing. RTCP sessions are not explicitly configured using the H.248 protocol and therefore cannot have their policing parameters set. Instead, the policing parameters for RTCP sessions are derived from the corresponding RTCP flows depending on the usage of the ETSI TS 102 333 Traffic Management (Tman) package.

For more information on the Tman package, see the “H.248 Traffic Management Package Support” section on page 5-1.

RTCP Policing Using Tman Package

The H.248 Tman package is used to set the sustained data rate (tman/sdr) and the policing (tman/pol) properties on the RTCP session. The RTCP session derives its policing rate from the H.248 Tman package as follows:

•When the sustained data rate (tman/sdr) has been defined in bytes per second, the RTCP rate limiting is 5 percent of the sustained data rate (sdr).

•However, if the RTCP rate obtained by taking 5 percent of the sustained data rate is below 208 bytes per second, then a minimum RTCP rate of 208 is used instead. There is no associated warning for this action.

Note When the policing (tman/pol) has been set to OFF, the RTCP session is not rate-limited.

RTCP Policing Not Using Tman Package

RTCP policing can be implemented by not setting any of the properties of the H.248 Tman package.

When the tman/sdr property is not specified, the RTCP rate limiting is set at 5 percent of the codec for the RTP stream.

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

5-4	OL-15421-01

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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 Cisco ASR 1000 Series Routers Overview ContentsGeneral 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 Prerequisites for Integrated Session Border Controller Configuring Integrated Session Border ControllerRestrictions 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 modeWhat To Do Next Troubleshooting TipsExamples 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 This section provides the following configuration examples Configuration ExamplesExample H.248 Log Output 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 InterworkingRTP to SIP Interworking Configuring Default Duration of a Dtmf EventSIP to RTP 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 Media Address Pools Restrictions for Configuring Media Address PoolsPrerequisites for Implementing Media 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 Dscp Re-Markings Dscp Marking and IP Precedence MarkingParameters on AC and per SDP on Rtcp Policing Using Tman Package Rtcp Policing Not Using Tman PackageQoS Bandwidth Allocation Rtcp PolicingEnabling Two-Rate Three-Color Policing and Marking Two-Rate Three-Color Policing and MarkingImplementing 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 Nine-Tier Termination Name Hierarchy Multi-Stream TerminationsRestrictions for Nine-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 Remote Source Address Mask Filtering ServiceChange Notification for Interface Status ChangeRTP Specific Behavior Support 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 Integrated Session Border Controller High Availability High Availability Support10-1 Hardware Redundancy Software RedundancyRoute Processor Redundancy RPR 10-2Issu Support SSO Support10-3 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 11-4Network Package Quality Alert Event Middlebox Pinhole Timer Expired Event11-5 Related Command Provisioned Inactivity Timer11-6 IN-1 IN-2 IN-3 Pinhole Pinhole timeout Policing Asymmetric policing Ipv6 packetsRTP specific behavior support SBE IN-4IN-5 IN-6