Cabletron Systems Netlink FRX8000, User Manual

Page: 126 / 468

9-8 FRX8000 3. 0 User G uide, Rev 02
Thruput Class Negotiation
is an optional X.25 facility that permits negotiation of the throughput classes (line
speeds) for either direction of data transmission on a per call basis. If
N
is selected, the
Maximum Throughput Class
value will be used. If
Y
is selected, any throughput class
included in a call packet, up to the
Maximum Throughput Class
, will be used. (If a class
for either direction is not included, the
Maximum Throughput Class
value will be used.)
Local Charging Prevention
if
Y
is selected for this parameter, no calls can be charged to this port. Incoming calls
from the network with Reverse Charging specified will be rejected; outgoing calls will
have Reverse Charging inserted if it is not already in the call packet.
Reverse Charge Acceptance
authorizes transmission of incoming calls that request the X.25 Reverse Charging
facility. If
N
is selected for this parameter and a call requests Reverse Charging, the
call will not be transmitted.
Fast Select Acceptance
authorizes transmission of incoming calls that request the X.25 Fast Select facility.
Incoming Calls Barred
is an X.25 facility that prevents transmission of incoming calls to the local DTE.
Outgoing Calls Barred
is an X.25 facility that prevents transmission of outgoing calls from the local DTE.
Maximum Packet Size
is the maximum data packet size that will be allowed to pass through this port. A
packet size included in a call setup packet will be used, as long as it is smaller than the
maximum specified here.
Default Packet Size
will be assigned to an incoming call setup packet if the packet does not request a
packet size.
Maximum Window Size
is the maximum number of unacknowledged packets per logical channel that can pass
through the port.
Default Window Size
will be assigned to an incoming call setup packet if the packet does not request a
window size.
Maximum Throughput Class
specifies the throughput class that will be inserted into a Call Request packet if
Throughput Class Negotiation
is not enabled or if a throughput class is not requested
in the Call Request. This value should not be higher than the line speed specified for
the physical port. Valid values (in bits per second) are:
3
= 75
4
= 150
5
= 300
6
= 600
7
= 1200
8
= 2400
9
= 4800
10
= 9600
11
= 19.2K
12
= 48K
13
= 56K
14
= 64K
Default Calling Address
will be inserted into to an incoming Call Request packet if the packet does not contain
a calling address.