Cabletron Systems SPECTRUM 1800, User Manual

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Configuring X.25 Physical Ports 6-7
X.25 Status and Configuration
Flow Control Negotiation
This Þeld allows for negotiation of ßow control parameters (packet and window
sizes for data transmission in either direction) on a per-call basis. If
No is selected,
the Default Packet Size and Setup Packet Window Size will be used. If Yes is
selected, a packet and/or window size included in a call packet will be used. (If a
packet and/or window size is not included, the default values will be used.)
Throughput Class Negotiation
This Þeld allows for negotiation of throughput classes for data transmission in
either direction on a per-call basis. If
No is selected, the Default Throughput
Class will be used. If Yes is selected, any throughput class included in a call
packet will be used. (If a throughput class is not included, the default value will
be used.)
Prevent Local Charge
This Þeld is used to prevent calls from being charged to this port. If Yes is
selected, incoming calls from the network with Reverse Charging speciÞed will be
rejected and outgoing calls will have Reverse Charging inserted if it is not already
in the call packet. If
No is selected, then calls can be charged to this port.
Accept Reverse Charge
This Þeld is used to authorize the transmission of incoming calls that request
Reverse Charging. If
Yes is selected, a call requesting Reverse Charging will be
accepted. If No is selected, and a call requests Reverse Charging, the call will not
be transmitted.
Fast Select
This Þeld authorizes transmission of incoming calls that request the X.25 Fast
Select facility. This Þeld must be set to
Yes if SDLC-LLC2 conversion is conÞgured
over the port, or if the X.25 link is to an X.25 network.
In Call Bar
This is an X.25 facility that prevents the transmission of incoming calls to this
port.
Out Call Bar
This is an X.25 facility that prevents the transmission of outgoing calls from this
port.