AIS Router AI2524 - Manual (Page 286)

AI2524 Router Card User’s Manual
Page 12-28 August 1997
2524UM
face defaults for the flow control parameters, these options must b
used to specify the values. Not all networks will allow a PVC to be de-
fined with arbitrary flow control values.
Additionally, the Data bit (D-bit) is supported, if negotiated. PVCs
allow the D-bit procedure because there is no call setup to negotiate its
use. Both restricted and unrestricted fast select are also supported and
are transparently handled by the software. No configuration is required
for use of the D-bit or fast select facilities.
Define the Virtual Circuit Packet Hold Queue Size
To define the maximum number of packets that can be held whil
virtual circuit is unable to send data, type (in interface configuration
mode):
x25 hold-queue queue-size
An encapsulation virtual circuit's hold queue size is determined when
it is created; the
x25 hold-queue command does not affect ex-
isting virtual circuits. This command also defines the hold queue siz
of encapsulation PVCs.
Restrict Map Usage
An X.25 map can be restricted so that it will not be used to place calls
or so that it will not be considered when incoming calls are mapped.
To restrict X.25 map usage, use the following map options as needed:
z Restrict incoming calls from a map.
x25 map protocol address [ protocol2
address2 [...[ protocol9 address9 ]]] x121-
address no-incoming
z Restrict outgoing calls from a map.
x25 map protocol address [ protocol2
address2 [...[ protocol9 address9 ]]] x121-
address no-outgoing