
Octal DS-1/E1
9-14 Verilink AS4000 User Manual
ESF [S]tatistics
The ESF Statistics Menu enables you to access both current and 24-
hour ESF Statistics. The Curr (current statistics) column displays
the counts for the current time interval (maximum fifteen minutes).
The 24 Hr (24-hour statistics) column displays the counts for the
preceding 24-hour period.
Figure 9-11 ESF Statistics Menu
To access the ESF Statistics screen:
1. Place your cursor on any Active link in the Diagnostics
Manager Menu and type "S". A new menu appears (Figure
9-11).
The ESF Statistics fields are described in Table 9-6.
Table 9-6 ESF Statistics Field Descriptions
V
VV
Ve
ee
erilin
rilinrilin
rilink
k k
k Corp
CorpCorp
Corpo
oo
oratio
ratioratio
ration
n n
n
AS
AS AS
AS4
44
4000 -
000 -000 -
000 -
T1/E1
T1/E1 T1/E1
T1/E1
Slo
Slo Slo
Slot
tt
t:03
:03 :03
:03 Help
Help Help
Help = [?]
= [?]= [?]
= [?]
E
E E
ESF Sta
SF StaSF Sta
SF Stat
tt
tistic
isticistic
istics
s s
s For
For For
For P
PP
Port#:
ort#: ort#:
ort#: 1
11
1
R
R R
Registe
egisteegiste
egister
r r
r C
C C
Curr
urr urr
urr 2
22
24 Hr
4 Hr4 Hr
4 Hr
-
- -
-------
------------
-------
--
------
----------
------
--
------
----------
------
--
------
----------
------
--
------
----------
------
--
-----
--------
----
E
E E
Errored
rrored rrored
rrored secon
seconsecon
second
dd
ds....
s....s....
s.....
..
.....:
....: ....:
....: 0
0 0
0
0
00
0
F
FF
Failed
ailed ailed
ailed s
ss
second
econdecond
econds
s s
s (UAS
(UAS(UAS
(UAS)
))
)....:
....: ....:
....: 880
880 880
880 1996
1996 1996
19964
44
4
S
S S
Severel
evereleverel
everely
y y
y erro
erroerro
error
rr
red se
ed seed se
ed sec
cc
conds:
onds: onds:
onds: 0
0 0
0
0
00
0
B
B B
Bursty
ursty ursty
ursty e
ee
errore
rrorerrore
rrored
d d
d seco
secoseco
secon
nn
nds..:
ds..: ds..:
ds..: 0
0 0
0
0
00
0
L
L L
Loss of
oss ofoss of
oss of frame
frame frame
frame count
countcount
count.
..
.....:
....: ....:
....: 0
0 0
0
0
00
0
T
T T
Time in
ime inime in
ime in inter
inter inter
interv
vv
val...
al...al...
al....
..
.....:
....: ....:
....: 880
880880
880
#
# #
# Valid
Valid Valid
Valid inter
interinter
interv
vv
vals..
als..als..
als...
..
.....:
....: ....:
....: 191
191191
191
E
E E
ESF sta
SF staSF sta
SF stat
tt
tus...
us...us...
us....
..
......
..........
......
..
.....:
....: ....:
....: 00000
0000000000
000000
00
000
0000
00
Errored secs The occurrence of a Loss of Frame or a CRC-6 error in a one-second period is
known as an errored second. This field represents the number of errored seconds
that have occurred.
Failed secs (UAS) Each second period during the occurrence of a Failed Signal State (ten
consecutive errored seconds) is known as a failed second. This field represents
the number of failed seconds that have occurred.
Severely errored secs A one-second period in which three hundred twenty (320) or more CRC-6 errors
have occurred is known as a severely errored second. This field represents the
number of severely errored seconds that have occurred.
Bursty errored secs A one-second period in which more than one but less than 320 CRC-6 errors have
occurred is known as a bursty errored second. This field represents the number
of bursty errored seconds that have occurred.
Loss of frame count A loss of frame occurs when either Network equipment or the DTE senses errors
in the framing pattern. Depending upon the equipment, this occurs when any 2
of 4, 2 of 5, or 3 of 5 consecutive terminal framing bits received contain bit
errors in the framing pattern.
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