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Chapter 11. SNMP Management
11-4 ATLAS 810
PLUS
User Manual 61200266L1-1
DS1 Traps
ATLAS supports RFC1406, the DS1 standard MIB, as well as the ADTRAN
DS1 MIB, an extension to RFC1406. The ADTRAN DS1 group lets you send
traps for DS1 Alarm Failures and Performance Threshold Crossing Alerts.
The DS1 Alarm Table, defined in the ADTRAN DS1 extension MIB, contains
entries that enable the status bits to send an Alarm Trap message. Each
Alarm Table row entry corresponds to a DS1 interface managed by the de-
vice. The DS1 Alert Table, also defined in the ADTRAN DS1 MIB, contains
similar entries for controlling the Alert Traps.
DS1 Alarm Traps
DS1 line status is reported in the bit-encoded dsx1LineStatus object variable.
Each trap represents a bit value = 1 change in dsx1LineStatus. Table 11-3 de-
scribes the DS1 alarm traps supported by ATLAS 810
PLUS
.
When enabled, ATLAS 810
PLUS
sends alarm traps to the each member of the
trap destination list upon detecting status bit changes in dsx1LineStatus. Each
status change sets an event bit = 1 in the adDS1LineEvent variable in the DS1
alarm table. If you have previously set the corresponding enable bit = 1 in the
adDS1LineArm variable and adDS1AlarmEnable = On, then ATLAS 810
PLUS
sends an alarm trap message. A single alarm trap message may report mul-
tiple event changes. ATLAS 810
PLUS
clears the event bits after sending the
trap message or sending the response to a Get request for the adDS1LineEvent
variable.
DS1 Alert Traps
RFC1406 also defines a series of Current and Total Alert threshold values.
You can enable ATLAS 810
PLUS
to send an alert trap message to each mem-
Table 11-3. DS1 SNMP Traps
Alarm Severity Description
adATLAS800NoAlarm Warning No alarms are present.
adATLAS800RxYellow Minor The Far End is experiencing Red Alarm
(a.k.a. Yellow Alarm).
adATLAS800TxYellow Warning The Near End is sending Loss Frame Indication
(a.k.a. Yellow Alarm).
adATLAS800RxAIS Minor The Far End is sending Alarm Indication Signal
(a.k.a. Blue Alarm).
adATLAS800TxAIS Warning The Near End is sending Alarm Indication Signal
(a.k.a. Blue Alarm).
adATLAS800RedAlarm Major The Near End is experiencing Loss of Frame
(a.k.a. Red Alarm).
adATLAS800LOS Major The Near End is experiencing Loss of Signal.