Circuit types – Verilink NCM 2000 (880-502623-001) Product Manual User Manual
Page 63
Circuit Manager
Verilink NCM 2000
4-7
Circuit Types
When the circuit type is set to Permanent, Circuit Manager will
attempt to route the circuit as described and it will not reroute the
circuit based on current or future alarm conditions.
A Primary circuit is one which uses a Backup circuit in the event of
a failure in the normal circuit path. Primary and Backup circuits
may be built such that a single Backup circuit serves to protect a
number of Primary circuits in an n x 1 configuration. In the event
of multiple simultaneous Primary circuit failures, the circuit with
the highest priority will be given Backup circuit bandwidth first.
When configuring Primary and Backup circuits, configure the
Primary circuit(s) first, as you will refer to them when creating the
Backup circuit.
There are two types of backup circuits: ISDN dial-backup (d-bk) and
non-ISDN backup (bkup).
Switched circuits and Dial-Backup circuits require a DPRI 2922 or
QPRI 2921 ISDN application module for the destination port, as
only these products handle establishing calls over digital switched
facilities. For more information on backup and dial-backup circuits
see the DPRI 2922 User Manual
or the QPRI 2921 User Manual.
Additional menu items for Backup and Dial-Backup are shown in
Figure 4-3 Add Circuit Menu for Backup/Dial-Backup Circuits
Add Circuit -- [1,1] NCM 2000 Firmware 4.17 --
N) Name: Backup #2 P) Priority: high
T) Type: bkup M) Mode: 64k
SP) [2, 1] DIDC net2 DP) [2, 2] DIDC dat1
SM) --src port chn-- DM) --dst port chn--
01 02 03 04 05 06 07 08 01 02 03 04 05 06 07 08
09 10 11 12 .. .. .. .. 09 10 11 12 .. .. .. ..
.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..
U) Bus: AUT ->-->>->> Circuit Inactive <<-<<--<-
A) primary circ: Primary #1 backup circ:
SE) src err mask: ais,yel,los,lof,ses/uas,
DE) dst err mask: rts, O) dbkp timeout: 5days,23hrs,59min
G) err clr mask: rts,dtr,
S) Setup X) Exit
A [12.13.14.15] [1,1] NCM 2000 >