2-1CHAPTER 2TN3270 Server ImplementationThis chapter discusses the following aspects of TN3270 Server implementation:• TN3270 Server on the CIP/CPA• P
2-10 TN3270 Design and Implementation Guidesolution to this problem is to use DLUR PUs or direct PUs with INCLUD0E so that VTAM passes all LU names(st
TN3270 Server Implementation 2-11The client LU nailing feature associates particular LU names to particular client IP addresses or IP subnets. TheLU n
2-12 TN3270 Design and Implementation GuideNote: If the LUSEED is not configured in VTAM, then you cannot use the DDDLU function.LU Selection Algorithm
TN3270 Server Implementation 2-13Figure 2-3 LU Selection AlgorithmPreference order:1) Active, correct model,2) Inactive, no model, 3) Active, wrong mo
2-14 TN3270 Design and Implementation GuideAddressing LAN Printing RequirementsIn the past, large amounts of mainframe print output would be printed i
TN3270 Server Implementation 2-15The client nailing feature of Cisco’s TN3270 Server simplifies mainframe printing. If you have statically definedprinte
2-16 TN3270 Design and Implementation GuideThe DLUS is a product feature (APPN option set 1066) of a T5 (VTAM) network node supporting sessionservices
TN3270 Server Implementation 2-17How Session Switching WorksThe LUs implemented by the TN3270 Server are dependent LUs. To route these dependent LU se
2-18 TN3270 Design and Implementation Guide• CP-to-CP connection using virtual routing node parameters and implementing APPN on the router using theco
TN3270 Server Implementation 2-19Note: If you need to use client LU nailing and provide redundancy, the solution is difficult. With LU nailing,requesti
2-2 TN3270 Design and Implementation GuideFigure 2-1 TN3270 Session OverviewHardware and Software RequirementsThis section provides information about
2-20 TN3270 Design and Implementation GuideUsing the Director Response Protocol (DRP), a simple User Datagram Protocol (UDP)-based applicationdevelope
TN3270 Server Implementation 2-21subarea. You must code the MAXSUBA start option in VTAM’s start option list if you want VTAM tocommunicate with nonex
2-22 TN3270 Design and Implementation GuidePU Configuration ModeYou access the PU configuration mode from the TN3270 Server configuration mode or from th
TN3270 Server Implementation 2-23To remove an entity, the same identification parameters are needed. Perform the following task beginning inTN3270 DLUR
2-24 TN3270 Design and Implementation Guide• Configuring SAPs under DLUR• Configuring PUs under DLUR• Configuring LU Nailing (Optional)Note: You can also
TN3270 Server Implementation 2-25When you use the tn3270-server command, you enter TN3270 configuration mode and are able to use all othercommands inth
2-26 TN3270 Design and Implementation GuideUNBIND-Action CommandA session unbind (specified using the unbind-action command) indicates whether or not a
TN3270 Server Implementation 2-27These commands can be specified in the TN3270 Server configuration mode the DLUR/Direct PU configurationmode. The comman
2-28 TN3270 Design and Implementation GuideWhen you use the pu command, you enter PU configuration mode and can use all other commands in this tasklist
TN3270 Server Implementation 2-29Configuring PUs under DLURThis task is required when configuring DLUR connected hosts. To configure PUs under the DLUR f
TN3270 Server Implementation 2-3• Defining LUs• Addressing LAN Printing Requirements• Addressing SNA Routing in Multi-Domain Environments• Addressing E
2-30 TN3270 Design and Implementation GuideMonitoring the TN3270 ServerTable 2-13 lists some of the monitoring tasks specific to the TN3270 Server. To
2-4 TN3270 Design and Implementation Guide• Each CIP has up to two Enterprise Systems Connection (ESCON) or two bus-and-tag (parallel) interfaces anda
TN3270 Server Implementation 2-5Figure 2-2 Allocation PUsThe TN3270 Server can support configurations where a group of PUs have the same IP listening a
2-6 TN3270 Design and Implementation GuideFor static LUs, the first phase is LU activation. The LU requested must be defined at the host under the PU. T
TN3270 Server Implementation 2-7• The host issues a deactivate physical unit (DACTPU) or disconnects the link.• The router console is instructed to de
2-8 TN3270 Design and Implementation GuideDynamicLU allocation isthe most commonform of requestfrom TN3270 clientsemulating aTN3270 terminal.The clien
TN3270 Server Implementation 2-9• Two 3270 data-stream mode types: <> or EAn E mode type indicates that the client supports the host sending a r
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