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Flow Ctrl
Enables or disables Flow Control Parameter Negotiation. Flow Control Parameter
Negotiation is available as a subscription option from most service providers.
Default: Negot
Deflt
Disables flow control negotiation. With negotiation disabled, the configured values
for Pkt Window and Pkt Size serve as the defaults across the circuit.
Note: If you disable flow control, assure that the X.25 DCE has also disabled flow
control. Additionally, assure that the values selected for Pkt Window and Pkt Size
match those of the DCE.
Negot
Enables flow control negotiation. With flow control enabled, the window and packet
size are negotiated on a physical circuit basis. Results in the following two
parameters:
Negotiated Pkt Window Negotiated Pkt Size
Group Number
Accepts the group number of the port assigned to the PDN subscription service.
Appears only when the Closed User Group parameter is set to Yes. The Group
Number must be the group number associated with the port used to connect with the
PDN subscription service.
Default: 0
Range: 0 to 99
High PVC LCN
Sets the maximum LCN for a permanent virtual circuit (PVC). The calculation of High
PVC LCN is identical to High SVC LCN. For additional information, refer to the High
SVC LCN parameter.
Note: PVC LCN ranges and SVC LCN ranges must not overlap.
High SVC LCN
Sets the maximum LCN for a switched virtual circuit (SVC).
The router supports up to 32 dedicated SVCs (used for X.25 Point-to-Point service)
for each LAPB connection and up to 254 VCs per slot (SVCs and PVCs). Upon
initialization, the router first allocates dedicated SVCs and PVCs to X.25 Point-to-
Point service; it then makes the remaining LCNs available (on an equal basis) to X.25
PDN, X.25 DDN, or X.25 Switch services.
Options
If the LAPB circuit supports only X.25 Point-to-Point service, add the number of
dedicated switched two-way virtual circuits provided for by your X.25 subscription
agreement to the value assigned to Low SVC LCN and then decrease the result
by 1.
If you are configuring only X.25 DDN, X.25 PDN, and/or X.25 Switch service on the
current slot, use the following formula to calculate High SVC LCN:
X.25 Service Parameters
Parameters and Options
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