Visara LINCS Configuration - Manual (Page 70)

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LINCS Configuration
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not time out on the upstream link. LINCS will perform SNA segmentation as needed, both
downstream and upstream.
The SDLC DAP feature is responsible for maintaining the SDLC link, including error recovery.
Note: If the upstream connection is Channel, and the downstream (DAP) uses an SCC, LINCS
will perform outbound segmentation, but not inbound segmentation. LINCS supports both
inbound and outbound segmentation if an HSC board is used for downstream (DAP)
connections.
When supporting DAP, (the number of host buffers) x (the host buffer size) must be large
enough to handle the maximum SDLC frame size supported by DAP (521 + secondary to
primary link header size). These parameters are defined by MAXBFRU and IOBUF in the
VTAM gen.
NCP Parameter Definitions
The DAP software in LINCS permits the configuration of several NCP-equivalent parameters.
Those NCP parameters are listed below, along with some configuration pointers:
• NRZ/NRZI
• RTS
• ADDRESS
• REPLYTO
• RETRIES
• PAUSE
• HDXSP
• RNRLIMIT
• XID Polling Interval for Inactive Pus
• MAXDATA (This parameter is also a NCP parameter, but is found on the Link Profile
panel for SDLC/DAP)
NRZ/NRZI
This line options parameter must be defined the same as the DSPU devices defined on the
other end of the Gateway Circuit line.
RTS
This parameter indicates whether RTS will be non-switched, or switched.
PERMANENT should be selected unless the modem cannot operate with RTS held high.
This is true whether Options are: PERMANENT or CONTROLLED
ADDRESS
This parameter indicates whether LINCS is to poll/send data to one PU while receiving data
from another. FULL is the normal configuration for a multidrop line. This parameter is called
Duplex on the SDLC/DAP Line Options panel.
Options are: FULL or HALF duplex