This chapter describes how to configure data-link switching plus (DLSw+), Cisco’s implementation of the DLSw standard for Systems Network Architecture (SNA) and NetBIOS devices. For a complete description of the DLSw+ commands mentioned in this chapter, refer to the “DLSw+ Configuration Commands” chapter of the Bridging and IBM Networking Command Reference. To locate documentation of other commands that appear in this chapter, use the command reference master index or search online. | Configuring Data-Link Switching Plus This chapter describes how to configure data-link switching plus DLSw Cisco s implementation of the DLSw standard for Systems Network Architecture SNA and NetBIOS devices. For a complete description of the DLSw commands mentioned in this chapter refer to the DLSw Configuration Commands chapter of the Bridging and IBM Networking Command Reference. To locate documentation of other commands that appear in this chapter use the command reference master index or search online. DLSw Configuration Task List DLSw supports local or remote media conversion between LANs and Synchronous Data Link Control SDLC or Qualified Logical Link Control QLLC . For clarity the configuration task list below describes configuration in a Token Ring environment. The only differences for SDLC and Ethernet are the specific commands needed to configure those media plus a media-specific command to associate the interface with DLSw . To configure DLSw complete the tasks in the following sections Define a Source-Bridge Ring Group for DLSw Define a DLSw Local Peer for the Router Define a DLSw Ring List or Port List Define a DLSw Bridge Group List Define DLSw Remote Peers Enable DLSw over Frame Relay Enable DLSw on a Token Ring or FDDI Interface Enable DLSw on an Ethernet Interface Enable DLSw on an SDLC Interface Enable DLSw over QLLC Enable NetBIOS DDR Configuring Data-Link Switching Plus BC-219 Define a Source-Bridge Ring Group for DLSw Enable NetBIOS DDR Tune the DLSw Configuration Monitor and Maintain the DLSw Network See the end of this chapter for DLSw Configuration Examples. Media-specific configuration examples for Ethernet and SDLC are also provided. For details of SDLC commands in the sample SDLC configuration refer to the LLC2 and SDLC Commands chapter of the Bridging and IBM Networking Command Reference. Define a Source-Bridge Ring Group for DLSw The source-bridge ring can be shared between DLSw and Source Route Bridging Remote Source Route Bridging .