User`s guide

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Assume station exists (Do not send TEST frames)
When this parameter is enabled TEST frames are not transmitted and the TEST response is
not expected. Instead the unit assumes the station exists and proceeds with the protocol as
if the DLSw has received the TEST response.
Toggle DCD output each time the DLSw protocol enters the DISCONNECTED state
When this parameter is set to “On”, the DCD (Data Carrier Detect) output will turn off
briefly each time the DLSw protocol enters the DISCONNECTED state. Thus any attached
equipment that needs to will see signals changing state.
Sync port should not send or receive data when WAN link is down
This parameter causes the Sync port to be deaf and dumb (and have DCD low) while the
connection with the WAN is down. This is so that some terminals don't get too excited just
because L2 is up and think everything else should be working (and go into a management
error state).
Configuration - Network > Legacy Protocols > SNA over IP > SNAIP 0 >
SNA Parameters
Router to be Master on an unbalanced link
Enable this parameter if this unit is to be the Master in an unbalanced link, or “Off” if the
unit is to be a secondary station.
Polling Response Time
The poll time in milliseconds (if the unit is the master in an unbalanced link).
Polling Stations Addresses
This parameter lists the station addresses on the data link as a comma-separated list of hex
values (e.g. “c1,d1” for station addresses 0xc1 & 0xd1). This parameter is only applicable in
SNA mode.
SAPs
This parameter contains a list of SAP values which correspond to the station addresses.
DSAPs(blank=default)
This is the Destination SAP value, if left blank the SAP value above is used.
Send Null XID (XID with no Data)
When this parameter is set to “On” a null XID SSP message will be sent when the unit has
just received or sent a REACH ACK SSP message.
Send XID with Data
This parameter is a hex string to define binary data and defines an XID SSP message that
would be sent in response to a XIDFRAME SSP message being received.
Tx Turn Around Time
This parameter specifies the time in milliseconds between receiving a frame from an
outstation and transmission back to the same station. If this parameter is set to “0” this is
disabled and the Digi can respond immediately. The minimum non-zero value is 10ms.
Mode
This parameter is used to define the mode in balanced links. In unbalanced links (like
SNA/SDLC) the mode is defined by being master or the station, but for balanced links (like
HDLC).
N400 counter
This is the standard LAPB retry counter. The default value is 3 and it should not normally be
necessary to change this.