This guide describes how to administer SyncServer 1000, a comprehensive hardware/software package used to provide protocol services to a PC without installing specialized adapters or kernel drivers in the machine. SyncServer 1000 uses an Ethernet connection over a TCP/IP network to provide X.25, LAPB or raw synchronous communications services to applications running on TCP/IP connected machines.
SyncServer 1000 links operate as either network switches (DCE - the default), for making direct connections to DTE equipment or as a network-connected devices (DTE), to connect to data networks. (See the dte configuration parameter for more details.)
If you are installing this product for the first time you should read the Installer's Guide first.
Refer to Obtaining Technical Support when additional technical support is required.
As well as providing programmers with access to protocol primitives (such as making X.25 calls, accepting calls, sending data, reading data, and so on), SyncServer 1000 integrates with the operating system to provide:
Through a web browser on a PC you can configure both the SyncServer 1000 and the link configuration, as well as view statistics for the SyncServer 1000 operations.
Note: These options are not enabled unless you are logged in as the 'admin' user. For 'stats' users, these options are disabled.
Applications can obtain full control over X.25 virtual circuits using a C function library.
This application interface allows processes to control all aspects of X.25 virtual circuit operation: per-call facilities on setup and clearing, interrupt and reset packets, and control of Q and D bits in data packets.
Link Access Procedure-Balanced (LAPB) is a specific implementation protocol of HDLC, used for a single error-free data connection. LAPB is used on the data link layer (layer 2) of the OSI seven layer model of data communications. It functions the same as X.25 except there is no packet layer (no multiplexing of several virtual connections). The programming primatives to access LAPB links is similar to those used to access one X.25 perminant virtual circuit (PVC).
Some applications require a lower level control of the data that is sent and received on the wire. The raw framed synchronous API allows the user to send and receive frames with zero bit stuffing, CRCs and flags, but no other predefined protocol using a C function library.
This same library includes support for raw unframed synchronous protocols. In this case, no assumptions are made about protocols or organization of data. The data is is handled as a raw stream of bits.As well as collecting statistics for traffic studies, the software keeps track of protocol events at all levels. The utilities for this are built into the interface.
The SyncServer 1000 consists of:
This is a list of the minimum requirements needed to operate and administer SyncServer
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