ADTRAN 1200212L1, Руководство пользователя

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Chapter 7. Network Port Configuration
61200212L1-1 DSU IQ User Manual 7-7
DBU DLCI
Enter the far end DLCI for each PVC used for dial backup. Only
the DSU IQ that originates the call is required to have this option
set. This selection is available only when a DBU card is installed.
The range for the DBU DLCI field is from 16 to 1007 . Therefore,
you cannot manually enter 0 for the PVCs not used in DBU. When
an entry is first created with the
A
DD
selection, it is set to 0 by
default. To reset a previously configured DBU DLCI to 0, delete the
entry and then add it back in (using the
D
ELETE
and A
DD
selections).
DBU Phone Number
The phone number entry stores the phone number that is used
when the DSU IQ triggers auto DBU in case of port or PVC failure.
The phone number should correspond to a location that is
equipped with an “Adtran Safety Net” device that is capable of
restoring the PVC which is designated by the DBU DLCI element. If
auto DBU is triggered by port failure, then the DBU call order
element determines the order of a dialing list for alternate backup
locations.
DBU on Inactive
This option works in conjunction with the DBU criteria option W
ITH
PVC I
NACTIVE
. For DBU O
N
I
NACTIVE
option to have an effect on
auto DBU operation, the W
ITH
PVC I
NACTIVE
option must be set to
E
NABLE
. See Dial Backup Configuration on page 8-1.
If
DBU
ON
I
NACTIVE
is set for
E
NABLED
and the PVC designated by
the DLCI element in the table entry goes to an inactive or unknown
state, the DSU IQ will dial the phone number designated by the
DBU
PHONE NUMBER
element in the table entry.
Only PVCs that are used in DBU should have the DBU DLCI set to a
non-zero value.