User Guide for Cisco Prime Unified Service Monitor 9.0
MIBs Used and SNMP Traps Generated
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MIBs Used and SNMP Traps Generated

Table Of Contents

MIBs Used and SNMP Traps Generated


MIBs Used and SNMP Traps Generated


MIBS Used

Prime USM uses the CISCO-SYSLOG-MIB to generate SNMP traps.

SNMP Traps Generated

Cisco Prime Unified Service Monitor (Prime USM) generates the following traps:

MOS Violation—For details, see Table D-1.

Sensor Unreachable—For details, see Table D-2.

Sensor Reconnect—For details, see Table D-3.

Trap details are provided as name-value pairs in the clogHistMsgText field of the clogMessageGenerated notification. Table D-1 lists details of the MOS violation SNMP trap. Some information that is exclusive to a sensor or to a cluster is included only when the trap pertains to a sensor or a cluster as shown throughout Table D-1.

Table D-1 MOS Violation SNMP Trap Details 

TAG
Description
Value
Information Included for Sensor and Cluster

TT

Trap type

1: Data from sensor

3: Data from Cisco Prime Unified Communications Manager (Unified Communications Manager) cluster

01

When TT = 1, one of these:

MAC address (Cisco 1040)

IP address (NAM).

When TT = 3, Unified Communications Manager cluster ID.

Text string.

A

Flag indicating actual or sampled data

0: Actual

1: Sampled (not used)

B

Source device IP address. The source device can be:

A Cisco Unified IP Phone or a voice gateway (when TT = 1 and TT = 3).

A remote Unified Communications Manager (when TT = 3 and the call is an intercluster call).

IPv4 address, for example:

172.20.4.18
 
        

C

Recipient device IP address. The recipient device can be:

A Cisco Unified IP Phone or a voice gateway (when TT = 1 and TT = 3).

A remote Unified Communications Manager (when TT = 3 and the call is an intercluster call).

IPv4 address, for example:

172.20.5.12

D

Codec of call data record (see also CDC in this table).

One of these:

2: G711Alaw 64k

3: G711Alaw 56k

4: G711Ulaw 64k

5: G711Ulaw 56k

6: G722 64k

7: G722 56k

8: G722 48k

9: G723.1

10: G728

11: G729

12: G729AnnexA

15: G729AnnexB

16: G729AnnexAwAnnexB

18: GSM Full Rate

19: GSM Half Rate

20: GSM Enhanced Full Rate

40: G.722.1 32k

41: G.722.1 24k

42: AAC

80: GSM

82: G726_32K

83: G726_24K

84: G726_16K

89: iSAC (used when TT = 3 only)

E

MOS score calculated by the sensor (when TT = 1) or CVTQ (when TT = 3).

Sample value: 3.4

F

Primary cause of call degradation.

When TT = 1:

J: Jitter

P: Packet Loss

When TT = 3, N/A

G

Actual packet loss in the previous minute.

Sample value: 0.0.

H

Actual jitter in milliseconds in the previous minute.

Sample value: 0

Value is NA when TT = 3

CDC

Codec of call data record.

One of these:

G711Alaw64k

G711Alaw56k

G711Ulaw64k

G711Ulaw56k

G722 64k

G722 56k

G722 48k

G723.1

G728

G729

G729AnnexA

G729AnnexB

G729AnnexAwAnnexB

GSM

GSM Full Rate

GSM Half Rate

GSM Enhanced Full Rate

G.722.1 32k

G.722.1 24k

AAC

G726_32K

G726_24K

G726_16K

iSAC (used when TT = 3 only)

Information Included for Cluster Only

CCR

Cumulative Concealment Ratio—Cumulative ratio of concealment time over speech time observed after starting a call.

Sample value: 0.0

ICR

Interval Concealment Ratio—Interval-based average concealment rate; the ratio of concealment time over speech time for the last three seconds of active speech.

Sample value: 0.0

ICRmx

Interval Concealment Ratio Max—Maximum concealment ratio observed during the call.

Sample value: 0.0

CustomerName

The customer name. Valid only if the installation is in MSP Network Deployment mode.

Sample value: Cust-C

Information Included for Sensor and Cluster

CS

Concealment Seconds—Number of seconds within the report period that contain at least one concealment event.

Note Cisco 1040 does not report concealed seconds.

Sample value: 2

SCS

Severely Concealed Seconds

WhenTT = 1, number of seconds during which the percent packet loss (including jitter buffer discards) is greater than the SCS threshold. The threshold is fixed at 5%.

Note Cisco 1040 does not report severely concealed seconds.

When TT = 3, number of seconds during which a significant amount of concealment is observed.

Sample value: 1

Information Included for Cluster Only

MLQK

MOS Listening Quality or CVTQ Score—The Cisco Voice Transmission Quality (CVTQ) algorithm provides an objective estimate of the mean opinion score (MOS) for listening quality (LQK), rating it from 5 (excellent) to 1 (bad). This score is based on audible concealment events due to frame loss in the preceding 8-second interval of the voice stream.

Note The CVTQ score can vary based on the codec that the Cisco  Unified IP Phone uses.

Sample value: 4.5

MLQKmn

MOS Listening Quality CVTQ Min—Minimum score observed since the beginning of a call; represents the worst-sounding eight-second interval.

Sample value: 4.1

MLQKmx

MOS Listening Quality CVTQ Max—Maximum score observed since the beginning of a call; represents the best sounding eight-second interval.

Sample value: 4.5

MLQKvr

Version of the CVTQ calculation.

Sample value: .95

DRTN

Duration of the call, in seconds.

Sample value: 120

Information Included for Sensor and Cluster

NST

Number of suppressed traps from start time to end time when TT = 1. For more information, see the entry for Send traps every n minutes in Setting Up the Cisco 1040 Sensor Default Configuration.

Sample value: 9

Value is 0 when TT = 3

ST

Start time.

When TT = 1, time when the first trap was sent out for the endpoint.

When TT = 3, 10 minutes before the call disconnect time; used by Operations Manager to launch reports.

UTC time

ET

End time.

When TT = 1, time when the most recent trap was sent out.

When TT= 3, call disconnect time; used by Operations Manager to launch reports.

UTC time

Information Included for Sensor Only

I

Percent network packet loss.

Number of packets lost/total packets expected.

Sample value: 2.4

J

Adjusted packet loss—Percentage packet loss due to high jitter. This value is computed based on a reference jitter buffer with a fixed length delay. This value is not affected by network loss.

Sample value: 3.5

K

Integer representing the number of milliseconds between the first and last packet that is analyzed. This value will be 60000 for calls spanning a reporting interval. The value will most likely be less than 60000 for the initial and final streams.

Sample value: 60000

N

TOS/DSCP value.

Sample value: 3

O

Minimum MOS (3-second interval).

The minimum MOS score for a given 3-second interval within the current report interval.

Sample value: 35 (for 3.5)

P

SSRC.

Sample value: 23435214

Q

Source UDP Port.

Sample value:13565

R

Destination UDP Port.

Sample value: 24245

S

Maximum single packet reception deviation, in milliseconds.

Sample value: 32

T

Protocol.

0: Skinny call control protocol—Used by Cisco 1040

1: Http—Used by NAM

2: Https—Used by NAM

U

HTTP or HTTPS port used by NAM.

Sample value: 443


Service Monitor generates a Sensor Unreachable trap when either of the following occurs:

A Cisco 1040 that is registered to the Prime USM no longer sends keepalives.

A NAM is unreachable when Service Monitor tries to obtain data from it.


Note If you configure Operations Manager to receive traps from Prime USM, the Sensor Unreachable trap is displayed on the Alerts and Events monitoring dashboard under the unidentified trap device type.


Table D-2 lists details of the Sensor Unreachable SNMP trap.

Table D-2 Sensor Unreachable SNMP Trap 

TAG
Description
Value

TT

Trap type

2

01

ID

One of these:

MAC address—Indicates trap is for a Cisco 1040 sensor

IP address—Indicates trap is for a NAM

02

Time stamp

<YYYYMMDDhhmm>


When a sensor that has been unreachable becomes reachable, Service Monitor sends a Sensor Reconnect SNMP trap.


Note If you configure Operations Manager to receive traps from Prime USM, the Sensor Reconnect trap is displayed on the Alerts and Events monitoring dashboard under the unidentified trap device type.


Table D-3 lists details of the Sensor Reconnect SNMP trap.

Table D-3 Sensor Reconnect SNMP Trap 

TAG
Description
Value

TT

Trap type

4

01

ID

One of these:

MAC address—Indicates trap for a Cisco 1040 sensor

IP address—Indicates trap for a NAM

02

Time stamp

<YYYYMMDDhhmm>