Installation guide

Appendix D Microsoft Data Link Control Protocol 353
Entry Units
Range
Default
unload —
—
msdlc[u]
(required)
usedix (Ethernet
only)
—
0–1
0
windowerrors errors
0–10
0
xsaps0 —
0-127
0
xsaps1 —
0-127
0
xstations0 —
0-127
0
xstations1 —
0-127
0
Entries in the [msdlc_xif] section of the LAN Manager PROTOCOL.INI
file have the following meanings:
adaptrate
Specifies the time in milliseconds between runs of the adaptive
window algorithm. For each link, the Microsoft DLC driver uses the
algorithm to match the maxin and maxout values with the remote
station’s values as closely as possible. The algorithm also considers
the conditions of the link (such as adapter receiver buffers, load, and
so on).
When no dropped packets are detected, the adaptive window
algorithm increases the send window (see maxout). If dropped
packets are detected (more than the value of windowerrors), the
algorithm decreases the send window. Similarly, the algorithm adjusts
the receive window based on the timeout expiration of the t2 timer.
Adaptrate should be large in relation to t1 and t2—usually above
one second—but it can be smaller than ti.
A value of 0 turns off the algorithm, meaning that the maxin and
maxout values never change.
bindings
Names the driver(s) to which Microsoft DLC binds. The
Microsoft DLC driver can bind to as many as two network adapter
drivers. Use commas to separate the driver names.
bufqelements
Specifies the total number of buffers that may be pooled in the driver
at one time. This is not a per-pool limit, but a limit across all pools.
class1timeout
Specifies the length of time a network adapter driver should spend
trying to send a UI frame before giving up and freeing the resources.
commands
Specifies the number of CCB descriptors to allocate for managing
CCBs submitted to the Microsoft DLC driver. Specifies the number
of commands pending simultaneously. The equivalent entry in the
Microsoft NetBEUI protocol is called ncbs.