3-8 FRX4000/FRX6000 4.0 User Guide, Rev 013x74s/SDLC over Frame Relay to SNA HostFigure 3-6 Configuration Example 4Configure the following in the local FRX4000/6000:l RLP parameters (Chapter 5), to configure the RLP(s) that contain the ports overwhich the protocols will run. Configure frame relay on the RLP containing theport to the network, and configure SNA on the RLP containing the port to theFEP.If LLC2 is not already configured in the FRX4000/6000, configure it on thesame RLP. (Frame relay must be configured on each RLP that will use it, butLLC2 is configured on one RLP only. Performance may be enhanced if bothprotocols are on the same RLP, since this eliminates the need to communicatevia the bus in the FRX4000/6000.)l Virtual LAN ID (Chapter 9), which is necessary for LLC2 functionality.l Physical frame relay port (Chapter 6 and Chapter 7).l Physical SNA port (Chapter 6 and Chapter 9). The link station SDLC/LLC2conversion point is also defined in this record, under SNA PU Parameters.(These parameters act as both LLC2 Originated Host and Originated Interfacerecords.)l Terminated LLC2 Host (Chapter 9), which points to the frame relay interface.Note that the remote FRX4000/6000 must have an Originated LLC2 Host.l Terminated LLC2 Interface (Chapter 9), which defines an LLC2 terminationpoint at the frame relay interface. Note that the remote FRX4000/6000 musthave an Originated LLC2 Interface.l SVC Subscriber (Chapter 7), to route the incoming connection request from theframe relay LLC2 Terminated Host to the SDLC port. Note that this record isnot required on the remote FRX4000/6000, because that device originates theconnection (i.e., it is not being called).Key PointsLAN IDsLAN IDs can be configured in two places:l LLC2 node defaults, to identify a virtual bridge that connects the LLC2 functionto LAN interfaces.l LLC2 frame relay interfaces using 802.5 Source Route Bridge format, toidentify the ring number used by a source-route bridge at the remote end. (ThisID is normally assigned by a system administrator.) Note that the LAN ID on an3X74FrameRelay RemoteFRXLocalFRXHostFEP/NCP
