RAD Data comm E1/T1, Modular Access Device with Integrated Router Figure 5-74. Polling Intervals , Figure 5-75. Monitored Events After the link is declared DOWN, it can only be declared UP , again when the sliding monitored events window contains only successfully monitored events. , Figure 5-76. Monitored Events - Down Link

FCD-IPM Installation and Operation Manual Chapter 5 Setup Menu
Interface Parameters Menu 5-71
Full Status Enquiry
Full Status
Enquiry
Status Enquiry
Status Enquiry Reply
Full Status Reply
Status Enquiry Reply
Status Enquiry Reply
Status Enquiry Reply
Full Status Reply
Status Enquiry
Status Enquiry
Status Enquiry
Time
10 seconds
10 seconds
10 seconds
10 seconds
10 seconds
Polling interval = 10
Full enquiry interval = 4
FCD-IPM Frame Relay Network
Figure 5-74. Polling Intervals
Sliding monitored events window
S.E.
Frame
S.E.
Frame
S.E
Frame
.
???
Acknowledged.
Frame
Monitored events
(status enquiring frames
and full status enqui ry
frame = 5)
Link is DOWN when unacknowledged monitored events > 3
Link is UP when unacknowledged monitored events < 3
Unacknowledged.
Frame
S.E.
Frame
F.S.E.
Frame
S.E.
Frame
S.E.
Frame
Error threshold = 3
Monitored events = 5
Figure 5-75. Monitored Events
After the link is declared DOWN, it can only be declared UP
again when the
sliding monitored events window contains only successfully monitored events.
? 3
3
????? 33333
Link is DOW
N
Link is UP Link is UP again
Figure 5-76. Monitored Events - Down Link