Cabletron Systems Netlink FRX4000 User Manual - page 126
8-20
FRX4000/FRX6000 4.0 User Guide, Rev 01
T20 Restart Timer
will be started when the logical DTE issues a Restart Request, and stopped (and reset)
when a Restart Confirmation or Restart Indication is received. If the timer expires, the
DTE should retransmit the Restart Request.
T21 Incoming Call Timer
will be started when the logical DTE issues a Call Request packet, and stopped (and
reset) when a Call Connected, Clear Indication, or Incoming Call is received. If the
timer expires, the DTE should send a Clear Request.
T22 Reset Timer
will be started when the logical DTE issues a Reset Request, and stopped (and reset)
when a Reset Confirmation or Reset Indication is received. If the timer expires, the
DTE should retransmit the Reset Request or a Clear Request.
T23 Clear Timer
will be started when the logical DTE issues a Clear Request, and stopped (and reset)
when a Clear Confirmation or Clear Indication is received. If the timer expires, the
DTE should retransmit the Clear Request.
DTE Restart Retry Count
is the number of times a Restart Request from the logical DTE will be transmitted.
(The DTE will stop issuing the request on receipt of a Restart Confirmation or Restart
Indication.) If the
Restart Retry Count
expires, restart and recovery procedures should
be initiated.
DTE Reset Retry Count
is the number of times a Reset Request from the logical DTE will be transmitted. (The
DTE will stop issuing the request on receipt of a Reset Confirmation, Reset Indication,
or Clear Request.) If the
Reset Retry Count
expires, restart and recovery procedures
should be initiated.
DTE Clear Retry Count
is the number of times a Clear Request from the logical DTE will be transmitted. (The
DTE will stop issuing the request on receipt of a Clear Confirmation or Clear Indi-
cation.) If the
Clear Retry Count
expires, restart and recovery procedures should be ini-
tiated.
Closed User Group Parameters
The Closed User Group (CUG) function is an X.25 privacy feature that allows cre-
ation of up to 100 groups of users per port. Members of a CUG can communicate with
other members, but access to and from network users outside that CUG may be denied
(determined by
Outgoing Access Allowed
and
Incoming Access Allowed
). The CUG
index number is included in call packets, and is cross-referenced with the CUG Index
in the FRX4000/6000 software.
Preferential CUG Flag
specifies whether the port has a preferential CUG if the port belongs to any CUGs.
Preferential CUG
is a default CUG for the port. Any calls that do not specify a CUG will default to this
one if
Preferential CUG Flag
is
Y
. A new port has CUG
0
specified here.