Polycom 6400-S manual Configuring VoIP survivability, Configuring sofswitch survivability

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User Guide V2IU 6400-S Converged Network Appliance

Configuring VoIP survivability

Survivability features enable the 6400-S to extend the availability of VoIP services. These features include:

•Support for redundant SIP softswitches

•Support for the Virtual Router Redundancy Protocol (VRRP), allowing a backup 6400-S to take control for a master 6400-S in the event of a failure.

Configuring sofswitch survivability

If you will be using multiple SIP softswitches then you will need to enable server redundancy and specify the time between DNS lookups in the 6400-S. Enabling redundancy allows a DNS server to provide a list of multiple call processing servers to the 6400-S in the answers to SRV lookups. Each server in the list will be monitored using periodic messages by the 6400-S and the highest priority server that is currently reachable will be used for signaling. The 6400-S uses the reachability settings described below to determine the status of remote servers and remove inoperable servers from the list.

Triggers can also be used by the 6400-S appliance to determine when to forward call requests to a secondary server in the list. A trigger is set when a configured number of resends are received by the 6400-S from a SIP user agent attempting to place a call. When initiating a call a SIP user agent will send an INVITE message to the 6400-S that will then be forwarded to the primary server. In the event that the primary server fails before a reachability alarm has been declared using the heartbeat messages the user agent will resend INVITE messages until the trigger condition is met. At this point the 6400-S forwards the call request on to the secondary server in the list.

Sofswitch survivability includes:

•Softswitch reachability configuration

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Contents User Guide V2IU 6400-S Converged Network Appliance Trademark Information Contents Configuring the Firewall Configuring Network SettingsConfiguring VoIP Administrative OptionsContents User Guide V2IU 6400-S Converged Network Appliance Introduction Introducing the V2IU 6400-S Converged Network ApplianceService Provider E-1NxT-1/E-1 Branch Office Features Physical Connections and SpecificationsManagement Features User Guide V2IU 6400-S Converged Network Appliance If AC power supplies are installed Installing the 6400-SPhysical Installation1 If DC power supplies are installed Power Supplies1 DC Power Supply Interface RequirementsAC Power Supply Interface Requirements DC Power Supply LED IndicatorsConfiguring the V2IU 6400-S Connecting to the 6400-SUser Guide V2IU 6400-S Converged Network Appliance Navigating through the configuration pages Logging in and out of the 6400-SGetting help Getting information about the networkRouting Information Getting information about the system System uptime Recent Call Log Configuring Network Settings Configuring subscriber interface settingsConfiguring provider interface settings Setting the Ethernet link rate Link speed and duplex with locally attached devices Configuring the Network Setting DescriptionTo configure network settings Configuring VoIP To configure VoIP ALG Configuring VoIP Field Description Currently registered Configuring VoIP subnet routing Deleting a VoIP subnet route Configuring VoIP survivability Configuring sofswitch survivabilitySoftswitch redundancy configuration Configuring Vrrp To configure Sofswitch Redundancy, enter the followingConfiguring VoIP User Guide V2IU 6400-S Converged Network Appliance Configuring the Firewall Configuring the firewall basic settingsTo configure basic settings Configuring advanced firewall settings Basic settings rulesAdvanced setting rules Enabling or disabling the firewallAdministrative Options Changing the administration passwordSpecifying user commands Managing SIP, Mgcp or H.323 clients Selecting a client Deleting clientsQuerying clients Adding clientsRestarting the network Rebooting the systemUsing Network Test Tools Running a ping test Running a traceroute testUpgrading the firmware Configuring a management interface Configuring the interfaceReconnecting the 6400-S Configuring the trusted management addresses Move the connection from Port 2 to PortSetting the Provider MTU size Enabling Snmp Field Description Disabling Snmp Enabling remote system loggingAddressport Setting the system date and time Disabling remote system loggingCreating a static route Deleting a static route User Guide V2IU 6400-S Converged Network Appliance Appendix Troubleshooting TipsTrouble accessing the Internet No dial tonePinging the softswitch Telephone doesnt register with the softswitchChecking the configurations on the ALG Checking the ALG registration codeImportant Safeguards Regulatory NoticesOther Rights and Limitations Regulatory Notices Warranty and Warranty Exclusions Regulatory Notices Miscellaneous Regulatory Notices User Guide V2IU 6400-S Converged Network Appliance Regulatory Notices User Guide V2IU 6400-S Converged Network Appliance Regulatory Notices Compliance and Compatibility1 Regulatory Notices