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Avaya 555-245-600 manual S8700-series Server Separation, Release 3.0 system example

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Reliability and Recovery

Figure 78: Release 3.0 system example

S8700-series Server Separation

S8700-series server separation allows the two servers in an S8700-series Server pair to be geographically separated up to a maximum distance of 10 kilometers over a fiber-optic link. Separating the servers offers an improved survivability option by allowing servers to reside in two different buildings across a campus or small Metropolitan Area Network. This feature capability is applicable to the S8700-series Servers in both fiber-PNC and IP-PNC configurations.

The sever separation feature works best when each server is accompanied by its own Layer 2 Ethernet switch. For example, in a fiber-PNC system, each server would have an Ethernet switch co-located with it. The two Ethernet switches would be connected using a 100base-FX or Gigabit Ethernet link. For optimum results, the port networks should also be distributed with respect to Ethernet switches.

Note:

S8700-series Server Separation does not provide for separation of duplicated center stage switch port network connectivity (CSS-PNC) in a critical reliability configuration.

268 Avaya Application Solutions IP Telephony Deployment Guide

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Avaya 555-245-600 manual S8700-series Server Separation, Release 3.0 system example

Contents

Avaya Application Solutions For full legal page information, please see the documents Contents About This BookGreenfield deployment 109 LAN switching products 163 Deploying IP Telephony 175 Voice quality network requirements 245 Getting the IP network ready for telephony 281 Quality of Service guidelines 315 Index 373 Overview Using this bookAudience Downloading this book and updates from the Web Related resources Technical assistanceWithin the US InternationalTrademarks Sending us commentsAvaya Application Solutions product guide Avaya Application Solutions IP Telephony Deployment Guide Avaya Application Solutions Communication Manager traffic flow Avaya Communication Manager Avaya serversLinux-based servers Avaya Definity ServersAvaya Media Gateways Avaya Integrated ManagementAvaya communication devices Avaya Communication Manager applicationsAvaya SIP solutions Avaya SIP application enablementAvaya Distributed Office Distributed Office Configurations Main business location Networked remote sitesDistributed Office implementation Distributed Office benefitsSelecting a construct I40 constructs I40 constructs AnalogT1/E1 Trunk Interface Construct PortsI120 constructs = BRIAvaya AM110 Application Module Distributed Office application module and media modulesI120 constructs Analog 10/100 T1/E1 Telephony media modules Streamlined DeploymentLAN module Fully configured systems Provisioning statusPartially configured systems From-scratch configurationAvaya Application Solutions platforms Avaya Application Solutions platforms Overview Terminology Small to mid-size enterprise Avaya G700 Media Gateway with the S8300 ServerG700 hardware architecture Stand alone Office Pstn with IP Trunk link To Avaya PBXsAvaya G700 Media Gateway front view VoIP Engine complex G700 Media Gateway ProcessorAvaya IA770 Intuity Audix Messaging Option for S8300/G700 Voice Announcement over the LANS8300 primary controller architecture G450 Media Gateway S8300 as an LSPG450 Features Vrrp RTP-MIB G450 physical description Supported media modules in the G450Supported media modules Media module Description Telephony media modulesAdditional features Voice over IP VoIPCall center capabilities WAN media modulesLAN services WAN services Rapid Spanning Tree Protocol RstpPort mirroring Port redundancyNetwork security features Management access security featuresMedia modules necessary for each WAN line Alarms and troubleshooting features G250 and G350 Media GatewaysConverged Network Analyzer CNA test plug Link Layer Discovery Protocol LldpG250 and G350 Features Modes of Deployment OspfPPP RIPG350 Configurations G350 Specifications Fixed ports on the G350 front panel Port DescriptionButtons on the G350 front panel Button DescriptionRST ASBAdditional G350 functions and capacities Function Capacity TTRG250 Configurations Avaya G250 analog Media Gateway ChassisTrunk LineIsdn BRI ConsoleG250 DCP and G250 DS1 Media Gateways G150 Media GatewayETR IG550 Integrated Gateway Personal computers IG550 features J4350/J6350 Services Router features CLI IG550 and J4350 Services Router physical description Slot numbers on the Juniper J4350 Services RouterIG550 and J6350 Services Router physical description Slot locations on J6350 Services RouterTGM550 physical description TGM550 Gateway ModuleSupported interface modules Modules Description Series Router Physical Interface ModulesSummary of services Interface module capacities Description Capacity CommentsConfiguring media gateway options Backup and restore Converged Network Analyzer CNA test plugIG550 maximum media gateway capacities Avaya S8400 Server TN8400AP circuit pack S8400 Server Definity CSISmall to mid-size enterprise Avaya Application Solutions platforms Avaya S8700-series Server, fiber-PNC configuration Mid-market to large enterpriseS8500 Server S8500 capacitiesS8720 and S8730 Servers S8700-series ServersS8700-series external features Avaya S8700-series external featuresInternal hardware elements Other componentsControl network through an Avaya Ethernet switch Avaya S8700/MCC1 fiber-PNC major componentsCircuit packs that support IP signaling and media traffic S8700-series / MCC1 signaling pathMid-market to large enterprise Avaya Application Solutions platforms TN2302AP Media Processor operation Media Gateways MCC1 Media Gateway SCC1 Media Gateway Center Stage Switch ATM networkS8700-series fiber-PNC configuration for higher availability Standard reliability configurationFigure notes High reliability configuration S8700-series fiber-PNC in a high reliability configuration Critical reliability configuration Avaya S8700-series Server IP-PNC configurationS8700-series fiber-PNC survivability Location with another Avaya IP PBX Main components S8700-series Server IP-PNC a basic phone callS8700-series Server IP-PNC major components S8700-series IP-PNC reliability configurations S8700 IP-PNC configuration S8700 IP-PNC standard configurationCombined IP and fiber Port Network Connectivity Media Gateway Capacity Server Supported DirectReliabilities Supported Central Connect GatewaysConfiguration rules Capacity limit for media gatewaysIpsi Mixed reliability options ESS support for combined IP-PNC and fiber-PNC configurations Processor EthernetAvaya IP Office LSPGreenfield deployment Components needed for Greenfield deploymentServers H.323 Gatekeeper Greenfield IP Telephony deploymentAvaya Communication Manager Media Gateways and Port NetworksGreenfield configurations S8300 standalone solution small-to-midsize enterpriseMedium-to-large enterprise solutions S8700-series / G650 IP-PNCS8700-series IP-PNC with remote G700s or G350s S8700-series IP-PNC systemS8700-series with G150/G250 large number of remote branches S8700-series IP-PNC with remote G700 or G350sRequired circuit packs for S8700-series configuration Signaling path S8700 / G650 configuration Media flow path S8700 IP-PNC configuration Evolution from circuit-switched to IP Phase 1 Processor replacement Migration from Definity Server R to S8700 fiber-PNCS8700-series Servers fiber-PNC configuration Phase 2 IP-enable the Port Networks to support IP endpoints IP-enabled Definity configurationPhase 3 Server consolidation IP-enabling the S8700 fiber-PNC configurationS8700 / G700 / G350 system with Local Survivable Processors Voice and multimedia networking Intelligent networking and call routingIP Port Network / Media Gateway connectivity Media Gateway controlCommunication Manager gatekeepers Call ProcessingRegistration and alternate gatekeeper list Call signaling Discovery and registration process to the gatekeeperMedia stream handling Media processor circuit packs VoIP resourcesDtmf tone handling Media stream for audio conferencingSeparation of Bearer and Signaling SBS Multi-location Modem/Fax/TTY over IPFax, Modem, and TTYoIP options Relay Pass-thruOff Modem OffIP-based trunks Fax, Modem, and TTYoIP optionsTrunk signaling IP tie trunksAvaya SIP Enablement Services SES SES Server OverviewSamp Communication Manager as the SIP Feature Server SES NetworkSES Edge Server SES Core RouterSIP Adjuncts SIP Endpoints FeaturesSIP Endpoints SIP deployment scenarios Home-edge single box solutionSIP and DNS Typical home/edge configuration Multi-home multi-Communication Manager systemMulti-home multi-Communication Manager configuration Multi-home single Communication Manager system Multi-home single Communication Manager configuration Call processing Avaya-Toshiba Solution Avaya-Toshiba Solution Avaya G860 Media Gateway G860 Front view G860 Components System Controller BoardConfiguration with Avaya Communication Manager G860 Trunk Media Processing Module TP-6310Example configuration for call center Mobility Communication applicationsIP Telephones or IP Softphones Extension to CellularCall Center Call Center applicationsMessaging Compact Call CenterUnified Communication Center Avaya Call Management System CMSConferencing systems Meet-me conferencingAvaya Meeting Exchange Solutions Meeting Exchange Enterprise EditionTDM Meeting Exchange Web Conferencing NetworksVideo Telephony Solutions Meeting Exchange Express EditionComputer Telephony Integration CTI Application Programming Interfaces APIsBest Services Routing BSR polling Page Avaya C360 converged stackable switches C363T Converged Stackable switchFeatures of the C360 converged stackable switches C363T-PWR Converged Stackable switchLayer 2 features StackingLayer 3 features ManagementSwitches from Extreme Networks Power over Ethernet PoEAvaya Power over Ethernet PoE switches Available PoE Switch OptionsMidspan Power Units 1152A1 Power Distribution UnitPower priority mechanism Designed usagePower modes Avaya IP Telephones Barrel connector through brick transformerPower using adapters Interoperability with Wireless Access Point products1152B Power Distribution Units 1152B Midspan Power Distribution Units Avaya Model NumberSummary Number PortsConverged infrastructure security gateways VPN ClientSG200 SG203 and SG208VPN Client Page Deploying IP Telephony Avaya Application Solutions IP Telephony Deployment Guide Traffic engineering IntroductionDesign inputs TopologyDesign inputs Endpoint specifications Endpoint traffic usageExample 1 Station usage Example 1 configuration data Endpoints Atlanta BostonDCP Additional design criteria Preliminary calculationsCall usage rates Communities of interestTraffic engineering Call usage rates Example 2 Uniform Distribution model Erlangs Traffic engineering Call usage rates ⎛ number of stations in Site i ⎞ ⋅ total outbound CUR Expanded COI matrices Example 3 Empirical approach for existing systemsExample 4 Expanded COI matrices From endpoints in Site To endpoints in SiteEndpoints in a three-site system Atlanta Boston Cleveland 12.7 Number of type t stations in Site Site FromCOIs for multiple-site networks Network of Avaya systems and system sitesResource sizing OverviewSignaling resources Media processing and TDM resources Examples of media streams between Avaya endpointsHairpinning IP-TDM-IP connectivityShuffling Connectivity modes between two IP endpoints Intra-site TDM and Media Processing resource requirements Inter-site TDM and Media Processing resource requirements COIExample 5 TDM and media processing usage Re-categorization of CURs from Table Endpoints Totals Traffic engineering Erlangs G700 MGs 320 Processing occupancy Relationship Between Processing Occupancy and Bhcc Rate SIP traffic engineering Direct media connect shufflingLAN allocation and SIP trunks SIP specific features RegistrationSubscription and notification Instant messagingIP bandwidth and Call Admission Control Communication Manager and SES server processor occupancyCOI Matrix Example 6 IP bandwidth considerations Resource sizing Payload size per packet Packet 711 729 BitsExample 7 LAN bandwidth Example 8 WAN bandwidth Resource sizing Physical resource placement Final checks and adjustmentsAvaya Distributed Office Traffic engineering Security Your security policyWhat are you trying to protect? What are you protecting it from?How likely is a threat against these assets? Recommendations for your security policyAvaya Communication Manager and Servers Built-in Linux security featuresProprietary vs. open operating systems Shell access One-time passwordsAvaya capitalizes on Linux’ security advantage Root access Remote accessSecure access Monitoring and alarmingData encryption LAN isolation configurationsS8700 with Avaya MCC1 or SCC1 Media Gateways Security S8700-series Server with Avaya G650 Media Gateways Virus and worm protection Environment TestingRecommendations for network security TN2312BP IP Server Interface Ipsi IP Telephony circuit pack securityTelnet TN2302AP and TN2602AP Media Processors Control linkToll fraud TN799DP Control LAN C-LANAvaya’s security design Hacking methodsToll fraud indemnification Your toll fraud responsibilitiesAdditional toll fraud resources Security Audit Service Security Tune-up ServiceToll Fraud Intervention Hotline Avaya Security HandbookPage Network delay Voice quality network requirementsCodec delay Jitter Packet lossNetwork packet loss Echo Packet loss concealment PLCSignal levels Codecs Echo and Signal LevelsTone Levels CS-ACELP PCMACELPMP-MLQ Silence suppression/VAD Codec and H.248 Media GatewaysTranscoding/tandeming CNA Application Performance RatingIssue 6 January 2008 Available application models VoiceVideo conferencing Enterprise modelIntegrated Management overview documents Avaya Integrated Management offersAdministration Tools Offer VoIP Monitoring Management OfferEnterprise Network Management Offer System Management OfferThird-party network management products Multi Router Traffic GrapherNetwork management models HP OpenView Network Node ManagerDistributed component Centralized hybridCentralized management model Page Reliability and Recovery Reliability IPTDG43Survivability solutions S8700-series Server Separation Release 3.0 system exampleEnterprise survivable servers ESS ESS and H.248 Media Gateways ESS System CapacitiesESS and Adjunct Survivability Inter Gateway Alternate Routing Igar Connection preserving upgrades for duplex serversR2MFC Media Gateway recovery via LSP Survivability for branch office media gatewaysModem dial-up backup S8300/G700/G350 configurationAuto fallback process IP endpoint recovery IP endpoint recoveryRecovery algorithm IP Endpoint Time to Service Changes in IP end points Converged Network Analyzer for network optimizationOperation with NAT/Firewall Environment IP endpoint recovery Page Getting the IP network ready for telephony Avaya Application Solutions IP Telephony Deployment Guide IP Telephony network engineering overview Layers in a hierarchical network Description Core AccessDistribution Voice quality Jitter Packet loss maximum packet/ frame loss between endpointsBest practices Common issues LAN issues General guidelinesEthernet switches Speed and duplexVlan defined VLANsPort or native Vlan Trunk configuration Vlan binding feature C360Configured option Mod/port vidWAN Codec selection and compression QoSRecommendations for QoS Network design Serialization delayRouting protocols and convergence Overview of frame relay Frame RelayMultipath routing Frame relay issue and alternatives Committed information rate burst rangeMpls Additional frame relay informationVPN Convergence advantagesManaging IP Telephony VPN issues Communication securityFirewall technologies Network management and outsourcing modelsNAT ConclusionIP Telephony without NAT Design and Management Converged network designDesign for Simplicity Design for Manageability Design for ScalabilityTopologies Server ClusterLayers Layered Server Cluster TopologyIntegrated high density switch topology RedundancyRedundant connections Layer Sample spanning tree Vrrp configured for Core Access References for Converged network design on Page Quality of Service guidelines CoSComparison of Dscp with original TOS IP precedence bits ToS bitsLayer 2 QoS Layer 3 QoSQoS guidelines Serialization delay matrixPacket size Line 128 256 512 1024 1500 Speed Bytes Layer 3 QoS Ieee 802.1 p/Q 802.1Q tagDiffServ Recommendations for end-to-end QoSDifferentiated Services DiffServ TOS byte Original TOS specification Bit Value Use Description CRITIC/ECPQueuing methods Round-robinCB-WFQ / LLQ / CBQ Traffic shaping and policing Frame Relay traffic shapingFragmentation MTUFRF.12 Application perspectiveNetwork perspective Recommendations for RTP header compressionEquipment configuration for RTP header compression test RTP header compression testConfiguration Examples of QoS implementation High-quality service across a congested WAN link Assumptions for ExampleAdministration commands for Example Command MeaningCommandMeaning Example 2 C-LANS cannot tag their trafficExample 3 More restrictions on the traffic Converged infrastructure LAN switches X330 WAN ModuleTrust packet tagging Network recovery Change controlSpanning tree Layer 2 mechanisms to increase reliabilityLink Aggregation Groups Routing protocols Layer 3 availability mechanismsVrrp and Hsrp Dial backup Multipath routingConvergence times Ospf RIPConverged Network Analyzer Converged Network Analyzer CNA components Simultaneous monitoring of all paths Headquarters CNA deployment Measurement planeConfiguration and deployment details Controlling edge routersProblems with data networks Avaya network readiness assessment servicesBasic network readiness assessment service What if my network functions well today?Site Configuration Survey SurveyDetailed network readiness assessment service Vital Agent analysisDetailed network readiness assessment process Customer can Data for individual Professional Discovery Customer responsibilitiesElement monitoring Remote analysis Synthetic IP Telephony measurementsReport generation Customer deliverables Page Appendix a CNA configuration and deployment Configuring CNA Basic configurationConfiguring Virtual Module Interfaces Default GatewayService Provider Access Links BGP on the Engine ModuleAssigning USTATs to Providers MeasurementsUstat GRE Tunnels Decision making Configuring the Routers Edge Router GRE Tunnel InterfacesRoute Maps Interface Tunnel1 Description GRE to provider1Routing Configuration VIP RoutingRoute Reflection Bgp cluster-idCommand summary CNA commandsRoute-assert-filter force link provider1 Router Ra commands Router Rb commands Interface Tunnel2 description GRE to provider2Page Index CSS NAT LFI LAN WAN