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61200214L1-1 IQ Probe User Manual 33
Chapter 4. Applications
traffic, and it also acts as a fire-wall that restricts management
data to the IQ Probe. Dedicated PVC management is also ideal
when the user wants to guarantee access to a remote IQ Probe
regardless of the state of the remote LAN.
Carrier NMS
Router Router
IQ Probe
IQ Probe
DSU IQ
RD1
TD2
RD2
TDN RDN
TD1
ALM
/TST
1
A
C
B
4
D
F
E
SHIFT
DELETE
QUICK
NEXT
PREV
ADD
7
2
5
#
3
6
9
8
0
DSU IQ
RD1
TD2
RD2
TDN RDN
TD1
ALM
/TST
1
A
C
B
4
D
F
E
SHIFT
DELETE
QUICK
NEXT
PREV
ADD
7
2
5
#
3
6
9
8
0
LAN
LAN
Frame
Relay
DSU/CSU
DSU IQ
RD1
TD2
RD2
TDN RDN
TD1
ALM
/TST
1
A
C
B
4
D
F
E
SHIFT
DELETE
QUICK
NEXT
PREV
ADD
7
2
5
#
3
6
9
8
0
DSU/CSU
DSU IQ
RD1
TD2
RD2
TDN RDN
TD1
ALM
/TST
1
A
C
B
4
D
F
E
SHIFT
DELETE
QUICK
NEXT
PREV
ADD
7
2
5
#
3
6
9
8
0
Figure 4-5
Dedicated PVC Management Application
Minimum Configuration Requirements for Dedicated PVC
Management
The configuration requirements for dedicated PVC management
are identical to those listed for shared PVC management. See the
previous section, Minimum Configuration Requirements for Shared
PVC Management, for more information.
DIAL BACKUP APPLICATION
The IQ Probe dial backup (DBU) options allow frame relay
circuit outage recovery for one user to network interface (UNI) at
a time. Therefore, if the host site goes down, only one remote
site (the primary remote) is backed up. The IQ Probe can be
configured to originate a call based on physical layer conditions
and/or PVC signaling loss. Once the criteria are met, the IQ
Probe establishes a call to the configured phone number (see
Table 4-A) and the connection is used to carry traffic for the
PVC(s) configured for DBU operation.