Cabletron Systems FRM User Manual - page 134
9-10
Frame Relay Module 4. 0 User G uide, Rev 01
status and to control the line and remote interface. Configurable values are:
0
(None),
1
(Version 1), and
2
(Version 2).
Idle Fill Character
specifies a character that will be inserted into the stream when the SNA link is idle.
Inactivity Timer
determines how long the FRM will wait with no activity on the HPAD port before it
will declare the port down.
L1-Duplex
determines level-1 signal operation on RS-232 ports. If
Full
, RTS, CTS, DCD are
always high (and are raised by the appropriate side). If
Half
:
●
When the DTE is ready to transmit, it asserts RTS, waits for CTS to become
high, then starts transmitting. When transmission is finished, the DTE drops
RTS (and the DCE should drop CTS). DCD is low during this period.
●
When the DCE is ready to transmit, it checks to see that RTS and CTS are not
high, then it raises DCD and starts transmitting. When transmission is done, the
DCE drops DCD. RTS and CTS are low during this period.
For both Full and Half L1-Duplex, the DTE raises DTR and the DCE raises
DSR. The link is considered up when both DTR and DSR are high.
Make sure this parameter is configured correectly, or the PU will
not become active.
PU Subscriber Parameters
PU Name
identifies the PU to an SNMP or NetView host.
Local Subscriber ID
identifies the local device. A
Subscriber ID
record (see page 9-14) must also be con-
figured for this ID.
Remote Subscriber ID
identifies the remote device. A
Subscriber ID
record (see page 9-14) must also be con-
figured for this ID.
If the PU is one end of a connection to a logical X.25 port in the FRM, this address
must match a Subscriber ID configured for the logical port.
Maxdata
must correspond to the PIU size configured on the host (parameter MAXDATA of
macro PU in VTAM). For a link between a PU type 4 and a PU type 2, the frame size
configured for the TPAD port must be set at the value of MAXDATA in VTAM plus
6 bytes (corresponding to the length of the link header and the link trailer).
Autocall
causes automatic calling between SNA ports when the controller (identified by Link
Address) becomes active. If set to
Y
on an SNA port, an X.25 call will be made from
the local port to the remote subscriber port.