Cisco Systems H.323 manual Help, Start, End, Redisplay, Mml hstart=1,end=2

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Appendix A MML User Interface and Command Reference

h

h

The h command redisplays a command or a series of commands. Items displayed depend on a specified number or range. If no number is specified, only the last command is displayed.

h[::start=number[,end=number]]

Syntax Description

 

start

Entered as a number; specifies the first command to redisplay.

 

 

end

Entered as a number; specifies the end of the range of commands to

 

 

 

redisplay.

 

 

 

 

 

 

 

Examples

 

The MML command in the following example displays the last successful command entered:

 

 

mml> h

 

VSC H-323 Signaling Interface - H323-GW1 2000-06-20 10:04:28

M RTRV "rtrv-log:all" /* command 1 */

The MML command in the following example displays the third from the last successful command entered:

mml> h::3

VSC H-323 Signaling Interface - H323-GW1 2000-06-20 10:04:28

M RTRV "rtrv-ne"

/* command 3 */

The MML command in the following example displays the last and second to last commands entered.

mml> h::start=1,end=2

VSC H-323 Signaling Interface - H323-GW1 2000-06-20 10:04:28

M RTRV "rtrv-log:all" /* command 1 */ "rtrv-ne"

/* command 2 */

help

The help command displays a list of valid system commands and an explanation of their use. If you do not enter a command name as a parameter, the help command provides a list of MML commands, descriptions, and values. If you enter a command name as a parameter, a description of that command displays.

help[:command name]

Syntax Description

command name

The name of the MML command.

 

 

Cisco H.323 Signaling Interface User Guide

 

 

 

 

 

 

 

OL-4806-01 Rev. A14

 

 

A-11

 

 

 

 

 

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Contents Corporate Headquarters Cisco H.323 Signaling Interface User GuideCisco H.323 Signaling Interface User Guide N T E N T S Introduction to MML Command Operation for HSI Hairpin 38 Fax RADVision Logging Eisuppathfailure Endpointcallcontrolinterfacefailure MML Help OL-4806-01 Rev. A14 Skeleton Configuration File Xii System Administrator Document ObjectivesAudience This document is organized as follows Preface Document OrganizationSystem Operator System TechnicianBoldface Command abcDocument Conventions Meaning Comments and ExamplesHardware Documentation Global configuration modeRelated Documentation Release NotesWorld Wide Web Obtaining DocumentationSoftware Documentation Related DocumentationCisco.com Obtaining Technical AssistanceOrdering Documentation Documentation FeedbackCisco TAC Web Site Technical Assistance CenterCisco TAC Escalation Center Cisco HSI Overview IntroductionCisco HSI System Description PGWIP Network Call Control Subsystem OAM SubsystemRADVision H.323 New Features in Cisco HSI ReleaseOperational Environment Hardware RequirementsSoftware Requirements Cisco HSI RecoveryCisco HSI does not implement security features Cisco HSI System LimitationsOL-4806-01 Rev. A14 Installing and Configuring Cisco HSI Software Introduction Installing the Operating SystemHardware and Software Requirements Before You Start Installing the Cisco HSIConfiguring Groups and Users Check Preinstallation Task# chmod 777 .cshrc Cisco HSI Installation InformationSource /opt/GoldWing/currentPM/local/setup.gw.csh # vi .cshrcSubdirectory Contents Installing Cisco HSI This command displays the following text# tar xvf GoldWing-4.1.tar Following text displays # cd /export/BUILDS/4.1 # ./install.shType the VSC1 name and press Enter Following text displays ## Executing checkinstall script. Modified Environment is VERSION=4.1 Cisco HSI-A # /etc/init.d/CiscoGW start Dual HSI Example Configuration ScriptStarting the Cisco HSI Example# /etc/init.d/CiscoGW stop Configuring the Cisco HSIStopping the Cisco HSI Upgrading the Cisco HSI# ./uninstall.sh Removing the Cisco HSI# cd /opt/GoldWing # ls -l Type y and press Enter. The following text displays ## Removing installed package instance OTTgw000Provisioning the Cisco HSI Cisco HSI ConfigurationProv-sta Prov-cpy Prov-stp MML Configuration CommandsCommand Command DescriptionEtc/init.d/CiscoGW start Introduction to MML Command Operation for HSIInitiating an MML Session to Enable Dtmf on the HSI Verifying the ConfigurationSystem Configuration Data Reverting to the Base ConfigurationStatic System Data Parameter Type Description Option. The default value is Parameter, set it to EnabledCan receive T.38 FAX data. The default value is Default value is 0xc8Changing Static System Data Issue the command restart-softwconfirmDynamic System Data Parameter Description DefaultOVLDLEVEL1THRESHLOWER OVLDLEVEL1PERCENTOVLDLEVEL3PERCENT OVLDLEVEL1FILTERStack Configuration Parameters Nonprovisionable DataMML Provisionable Data System ParametersParameter Name Description Type Example Update Type NullProv-addname=q931,maxCalls=2000 Prov-addname=ras,maxfail=3 RAS ParametersParameter Name Description Type Example ManualRAS If this parameter is presentAllowCallsWhenNonReg If this parameter is present, it Prov-addname=h245,masterSlave.timeout=5 String H323ESPR0.2.4 Immediate Assigns to each version Parameter Name Type UpdateINTEGER0,1 Codec Selection Quick Reference for Important ParametersParameter Name Parameter Value Description 14presents important static system data parameters Parameter Name Parameter Values Description VSCBIPADDR1/2 VSCBPORTNUMBER1/215presents common RAS parameters Parameter Name Parameter Value HSI Feature ConfigurationAsymmetric Codec Treatment Empty Capability SetHairpin 38 Fax Configuring T.38 Fax on the Cisco Pstn GatewayConfiguring T.38 Fax on a Cisco IOS H.323 Gateway Configuring T.38 Fax on a Cisco IOS Mgcp GatewayProv-edname=ccpackage,hash=C Configuring Clear Channel on the Cisco HSIProv-addname=sysconfigstatic,informationmsgdisabled = True HSI Support for Tech PrefixesClear Channel Parameters Example Value Example Configuration Configuring G.726 on the Cisco HSI Parameter Example Value Configuration Example Configuring the Payload Type for the MgcpConfiguring Cisco HSI g726-cisco Configuring Cisco HSI g726-generic OL-4806-01 Rev. A14 Parameter Configuring G.729 Annex and G.729 Annex BOL-4806-01 Rev. A14 Stopping Call Processing Restarting the Cisco HSI ApplicationReporting the Cisco HSI Status Starting Call ProcessingStopping the Call Processing Application Starting the Call Processing ApplicationCounter Name Measurement Type Comments Call-Related MeasurementsFcotgcallsucctot FcinccallatttotFcinccallsucctot Fcotg CallatttotTermcapxchgatttot AvgroundtripdelayMasterslaveatttot MasterslavesucctotResetting Measurements OverloadRetrieving Counters Overload Level Setting Overload Data Following MML commands set overload dataRetrieving Overload Data Log File Location LoggingRotating Log Files Convention for Naming the Log FileLog messages have the following format Log MessagesLogging Levels Log Message PackagesRADVision Logging Setting GappingSetting Logging Levels GappingSet-gappingbothcalltype=all,percent=60 Retrieving Call Gapping DataAlarms Overview Alarm Severity LevelsDebounce Severity Level Description Retrieving and Reporting AlarmsSnmp Trap Types Informational Event RequirementsTo display all current alarms, use the rtrv-almsMML command Retrieving Alarm MessagesNoncontinuous Mode Continuous ModeYYYY-MM-DD Acknowledging and Clearing AlarmsElement Description SystemId Name of your device and its identifierAlarm Event and Reference Severity Level Alarms ListSeverity Level and Trap Type TroubleshootingTroubleshooting DescriptionEisuppathfailure One of the two links to a single Cisco PGW 2200 has failed This alarm has not been implementedLowdiskspace Percentage of disk usage is greater than the alarm limitVscfailure Use the clr-almcommand to attempt to clear the alarmThis is an informational event Running configuration has been modifiedSeverity level is minor. The trap type is Severity level is information. The trap type isEndpointcallcontrolinterfacefailure RADVision stack reports this alarmGappedcallnormal OVERLOADLEVEL1 User has entered the stp-callproccommand through the MML ProvisioningsessiontimeoutDetailed Logging MML User Interface and Command Reference Introduction Starting an MML Command Session in the Cisco HSIEtc/init.d/CiscoGW start Exit out of superuser MML Commands MML Command SyntaxMML Command Conventions Mml Symbol DescriptionStarting an MML Session Case SensitivityBatch Files Creating a Batch FileStarting a Batch File Rtrv MML ResponsesStatus Messages Status Message DescriptionQuitting an MML Session Error MessagesError Message Definition Description MML HelpThis section describes the following MML commands MML Command ReferenceAck-alm Ack-almevent=alarm eventClr-almcommand clears an alarm event Clr-almevent=alarm eventClr-alm Examples DiaglogRedisplay HelpStart EndRTRV-CTR Helprtrv-ctrProv-add Prov-addcommand adds a component to the Cisco HSIProv-add Prov-cpyConfirm Usage GuidelinesSession Sysconfigstatic Sysconfigdynamic H323sys Ras H245 Q931Related Commands Description Prov-dltProv-edcommand modifies a provisioned component Prov-edGw mml prov-edname=ras,maxfail=7 Prov-stasrcver=active, dstver=dummy1 MML batch feature to import the exported dataInstallation Prov-expProv-rtrv Gw mml prov-rtrvlist Name rasGw mml prov-rtrvname=ras Gw mml prov-rtrvsessionProv-stasrcver=version,dstver=version Prov-staProcess that started the provisioning session Prov-stpProv-stpconfirm prov-stpsession nameconfirm Session nameGw mml prov-stpconfirm Gw mml prov-stpuk9confirmGw mml prov-stpmml2confirm Radlogfile namestart stop QuitRadlog QuitGw mml restart-softw Gw mml restart-softwconfig2Restart-softw Gw mml restart-softwinitAck-alm Rtrv-almsRtrv-alms rtrv-almscont ContSyntax Description Examples Clr-meas Resets a measurement counterRtrv-calls Rtrv-ctrSet-dest-state Signalling path to the PGWService is or out of service OOS Rtrv-destRtrv-gapping Rtrv-logSyntax Description Rtrv-mml Status of the Cisco HSI Rtrv-neRtrv-ne-health Rtrv-neGw mml rtrv-overload Rtrv-overloadRtrv-overload Gw mml rtrv-ne-healthGw mml rtrv-softw Rtrv-softwSet-dest-state OOSRtrv-dest Set-gapping Data to be activated Set-logPackage One of the packages in the Cisco HSIUpper=number Set-overloadLevel 1 level 2 level Lower=numberRelated Commands Retrieve Sta-callprocSta-softw Sta-trccommand starts the call processing tracing function Sta-trcSta-callproc Starts call processing Rtrv-calls Stp-callStp-callcallref=x stp-callall CallrefStp-callproc Stp-callproctimeout=TStp-trc Stp-trcSta-trc Starts the call processing tracing function OL-4806-01 Rev. A14 RASmaxFailD1-200 Skeleton Configuration FileSysconfigstatic VSCAPORTNUMBER2 SysconfigstaticSysconfigstatic HOSTPORTNUMBER1 S Sysconfigstatic HOSTPORTNUMBER2 SCCECOperatorPriorityAccess CCECChannelOutOfServiceCCECCugAccessBarred CCECNetworkAddressExtensionError SSysconfigstatic CCECPriorityForcedRelease Sysconfigstatic CCECPrefix0DialledInErrorSysconfigstatic CCECPrefix1DialledInError Sysconfigstatic CCECPrefix1NotDialledSysconfigdynamic OvldLevel3Percent 100 AlarmDebounceTime 60000ResponseTimeOut 200 OvldLevel2ThreshUpperCPU 100Q931 H245tunneling H245 MasterSlave.timeout 65535 MasterSlave.manualOperationQ931 OverlappedSending Q931 EarlyH245H245 Modesi.audio.g711Ulaw56k H245 Modesi.audio.g711Alaw64kH245 Modesi.audio.g711Alaw56k H245 Modesi.audio.g711Ulaw64kEisup Accnociecdi AccgdesAccgdtd AccnocivcAccnumrelretries AccwaitrelretryAccwaitrlcfail CCPackage CCECRecoveryOnTimerExpiry CCPackage CCECServiceOrOptionNotAvailCCPackage CCECServiceOrOptionNotImpUnspec CCPackage CCECInvalidElemContentsCCPackage CCHCAccessInformationDiscarded CCPackage CCHCExchangeRouteErrorCCPackage CCHCPermanentFrameModeConnectionOutOfService C CCPackage CCHCSwitchingEquipmentCongestionCCPackage CCHCBearerCapabilityNotImplemented CCPackage CCHCServiceOrOptionNotImplementedCCPackage CCHCInvalidInformationElementContents CCPackage CCHCRecoveryOnTimerExpiryCisco H.323 Signaling Interface User Guide Trace Trigger2.h323.TerminatingIPAddress Trace Trigger2.h323.CalledPartyNumberTrace Trigger2.h323.OriginatingIPAddress Trace Trigger2.h323.OriginatingIPMaskEisup Waittimebeforefailovermillisec Eisup RudptimercheckperiodmsecQ931 NonQuotedConst H323 MaxTimers TickPeriod DefaultSDPtQ931 ConnectTimeoutConst NumberNoRangeConst# Logging Package Example of an HSI Configuration FileAppendix C Example of an HSI Configuration File Appendix C Example of an HSI Configuration File Appendix C Example of an HSI Configuration File # Call Control Package Accnociecdi = Accnocicci = Accnocisi = Acctmr = # FCIAccgdes = Accgdtd =Appendix C Example of an HSI Configuration File Appendix C Example of an HSI Configuration File Appendix C Example of an HSI Configuration File Appendix C Example of an HSI Configuration File # Gapping Package # Faultmanagement Package# Trace Package Appendix C Example of an HSI Configuration File # Application Package # Eisup PackageLogprio = Trace # Dynamic System DataAlternategatekeeperip Alternategatekeeperport = AlternategatekeeperidOVLDLEVEL3FILTER = Normal = CchcdefaultOVLDLEVEL2FILTER = Normal Normal OVLDLEVEL2THRESHUPPERCPUCCECCallingDroppedWhileOnHold CCECNetworkAddressExtensionErrorCCECBlacklistBNumberMatched CCECBlacklistCliLengthInvalidCCECRemoteProcError CCECPrefix0DialledInErrorCCECPrefix1DialledInError CCECProtocolErrorUnspecAppendix C Example of an HSI Configuration File OL-4806-01 Rev. A14 Name Value Isup Name-to-Cause Value LookupAppendix D E-ISUP Name-to-Cause Value Lookup Cisco H.323 Signaling Interface User Guide OL-4806-01 Rev. A14 Value Name Isup Cause Value-to-Name LookupAppendix E E-ISUP Cause Value-to-Name Lookup Appendix E E-ISUP Cause Value-to-Name Lookup OL-4806-01 Rev. A14 Name-to-Cause Value Lookup Appendix F H.323 Name-to-Cause Value Lookup Cause Value-to-Name Lookup Appendix G H.323 Cause Value-to-Name Lookup Vscfailure ConfigchangeLowdiskspace OVERLOADLEVEL1 OVERLOADLEVEL2 OVERLOADLEVEL3 StopcallprocessingData Configurable B-1 Constant B-1 Clr-meas commandCodec parameters Commands ack-alm clr-alm clr-meas diaglog Configchange alarmHSI IsupEndpointcallcontrolinterfacefailur EndpointchannelinterfacefailureMan-machine language MML commands case sensitivity A-3conventions A-2Nonprovisionable data OverlappedSending Alarmdebouncetime CiagentscanperiodCodec Dynamic system data 245 System Logdirectory Logfilerotateinterval LogfilerotatesizePkinst file Related documentationReliable User Datagram Protocol 931 See RudpManager MIB Subagent Stp-softw commandVscfailure alarm Snmp
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H.323 specifications

Cisco Systems H.323 is a set of standards designed for transmitting audio, video, and data over packet-switched networks. It is a critical technology that enables real-time communication and has become integral to the world of VoIP (Voice over Internet Protocol) and video conferencing applications. Originally developed by the ITU-T, H.323 has been widely adopted and implemented by Cisco Systems, allowing organizations to leverage reliable and scalable communication solutions.

One of the standout features of H.323 is its ability to support interoperability among varying equipment and platforms. This means that devices from different manufacturers can communicate seamlessly, which is vital in a diverse technical environment. H.323 does this by defining protocols that handle signaling, media transport, and control, ensuring that various systems can work together effectively.

Key technologies utilized within H.323 include H.225 and H.245 signaling protocols. H.225 is responsible for call setup and management, establishing communication between endpoints. In contrast, H.245 manages the negotiation of media channels, allowing devices to configure themselves based on the capabilities of each other. This adaptability is crucial for dynamic network conditions typical in VoIP applications.

Another defining characteristic of H.323 is its support for multiple types of multimedia communication, including point-to-point and multipoint calls. This flexibility supports everything from simple audio calls to complex videoconferencing setups, where many participants can share video and audio streams concurrently. Cisco enhances this capability through its hardware and software offerings, optimizing performance for conference calls.

H.323 also features robust error resilience mechanisms. This ensures that real-time data, which is typically sensitive to delays and losses, can be transmitted with minimal disruption. Moreover, it facilitates quality of service (QoS) implementation, allowing organizations to prioritize voice and video traffic over less critical data services, thereby improving the overall user experience.

In conclusion, Cisco Systems H.323 stands out as a comprehensive solution for real-time communication over packet-based networks. Its main features, including interoperability, multimedia support, and enhanced error resilience, position it as a relevant technology in both corporate and personal communication settings. As organizations continue to adopt cloud and hybrid communication models, H.323 remains a reliable backbone for ensuring connectivity and collaboration across diverse platforms.
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