ELSA LANCOM Business 6000, Manual

Page: 136 / 174

Technical basics
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ELSA LANCOM Business 6000
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136
EN
data compr according to LZS data compression procedures (Stac)
reduces the data volume when the data has not yet been
compressed. This procedure is also supported by routers of other
manufacturers and by ISDN adapters under Windows operating
systems.
bundle uses several B channels per connection. The channel
bundling method is determined by the configuration of the layer-2
options in the layer list, the timeouts in the names list, the setting for
the Y connection in the interface table and the setting for the channel
table.
bnd+compr uses both (compression and channel bundling) and
provides the maximum possible data transmission performance.
햳
Set the hold times for this connection in the name list. Please note the
following points:
Depending on the type of application, the B1 hold time should be
increased to such a level so that the connection is not dropped
prematurely because of packets not being transmitted for a short
time. Customarily, values between 60 and 180 seconds are a good
base to begin with which one can continue to adjust during operation.
The B2 hold time determines the delay time after which the dynamic
channels are terminated once the data throughput drops below the
threshold value.
햴
Use the channel list to determine the number of channels to be used for
the connection. You may also specify the channels to be used, thus
keeping certain channels free for dial-up connections via RAS, for
example.
The channel list entry determines whether static or dynamic channel
bundling will be used (see above). More than one minimum channel
results in static bundling, whereas a difference between the minimum
and maximum number of channels permits dynamic channel bundling.
햵
Use the entry for the Y connection in the interface list to determine what
should happen if an additional connection to a different remote station is
requested during an existing connection using channel bundling, but no
further B channels are available.
Y connection On : The router interrupts the bundled connection on this
interface to establish a connection to the other remote station. When