MIB variables alert example table

A real-time trap from an audio alert was traced to build this table, specifically, the Notification Variables in the leftmost column. The last column illustrates examples to Set and Clear an SNMP alert:

Table: MIB Variables Alert Example

Notification Variables Name

OID Strings

Description

Alert SET / CLEAR

volEncoder

PREFIX = 1.3.6.1.4.1.23522.1

Probe Server Name

OID prefix for OIDs below

trapEncAlerts

PREFIX.12 = 1.3.6.1.4.1.23522.1.12

ID identifying an Observer

trap. This variable binds all other variables in it

volEncoderName

PREFIX.2 = 1.3.6.1.4.1.23522.1.2

Octet String (Size 0…32)

Encoder Stream name

Value: ENC1

volEncoderHostname

PREFIX.3

Octet String (Size 0…32)

Encoder hostname or IP address

Value: ObsRpmVa

volEncAlerts

PREFIX.11

Object identifier

volAlertClipID

PREFIX.11.1

Integer32

Clip ID created on this alert

Value: 6 (Value: 9)

volAlertDescription

PREFIX.11.2

Octet String

Textual description of the alert

Value: LOW AUDIO LEVEL

/(AUDIO-OK):

History Channel 66; Encoder: ENC1

Audio level: -69. (-34)

Server time: 2010-09-29 18:52:41

volAlertClipRef

PREFIX.11.3

Octet String

URL to the clip created for this alert

Value: IP Address

volStreamName

PREFIX.11.4

Octet String (Size 0…32)

Stream (scanner in RPM) name

Value: P1

volAlertEnum

PREFIX.11.5

Integer [enumerate]

Alerts enumeration

See the following table for “volAlertEnum”

volAlertName

PREFIX.11.6

Octet String (Size(32))

Alert nickname

Value: AUDIOLOW

volAlertType

PREFIX.11.7

Integer32 (0/1/2)

Type of alert: set (1), clear(0), or warning (2)

Value: 1

volCertainty

PREFIX.11.8

Integer32

Certainty in percentage

Value: 0

volAudioLevel

PREFIX.11.9

Integer32

Audio level in dB units

Value: -69 (-34)

volAudioPin

PREFIX.11.10

Integer32

Audio Pin

Value: 0

volEventTime

PREFIX.11.11

Octet String (Size(32))

Event time in format 2011/02/09 18:21:33

Value: 2010-09-29 18:52:41

rpmChannelID

PREFIX.11.12

Octet String (Size(32))

Lineup channel ID (usually a channel number)

Value: 66

rpmChannelName

PREFIX.11.13

Octet String

Lineup Service name

Value: History Channel

rpmChannelQAM

PREFIX.11.14

Octet String (Size(32))

Lineup channel group

Value: Westside

volAlertSeverity

PREFIX.11.15

Integer{ info (1), warning (2), minor (3), major (4), critical (5)}

The degree of priority to correct the problem

Value: 4

oidAlertLevel

PREFIX.11.16

Integer{ probe (1), group (2), system (3)}

Alert level

oidGroup

PREFIX.11.17 Octet String (32)

Name of affected probe group

Value: Burlington News

oidProbe

PREFIX.11.18

Octet String (32)

Name of affected Probe server

Value: Probe66

The trap variables are described in the “MIB Variables table” section @11.1.1.