Version 7.2 815 Mediant 1000B Gateway & E-SBC
User's Manual 50. Viewing Performance Monitoring
50.4 Configuring Performance Profiles
The Performance Profile table lets you configure up to 432 Performance Profile rules. A
Performance Profile rule defines thresholds of performance monitoring call metrics for
Major and Minor severity alarms. If the threshold is crossed, the device raises the
corresponding severity alarm. You can configure a Performance Profile rule for all calls
(globally), or per SRD or IP Group.
You can configure the alarm thresholds for the following call metrics:
Answer Success Ratio or ASR (also known as Answer Seizure Ratio): The
number (in percentage) of answered calls (i.e. number of seizures resulting in an
answer signal) out of the total number of attempted calls (seizures). The metric is
calculated for the outgoing call leg. The metric includes the following SNMP
performance monitoring MIBs:
• PM_gwSBCASR: ASR for all (global) entities (i.e., all IP Groups and SRDs)
• PM_gwSBCIPGroupASR: ASR per IP Group
• PM_gwSBCSRDASR: ASR per SRD
If the configured ASR minor or major thresholds are crossed, the device raises the
SNMP alarm, acASRThresholdAlarm (OID 1.3.6.1.4.1.5003.9.10.1.21.2.0.111).
To view ASR in the Web interface, see ''Viewing Call Success and Failure Ratio'' on
page 812.
Network Effectiveness Ratio (NER): The number (in percentage) of successfully
connected calls out of the total number of attempted calls (seizures). The metric
measures the ability of the network to deliver a call to the called terminal. In addition to
answered calls, the following SIP response codes are regarded as successfully
connected calls: 408 (Request Timeout), 480 (Temporarily Unavailable), and 486
(Busy Here). The metric is calculated for the outgoing call leg. The metric includes the
following SNMP performance monitoring MIBs:
• PM_gwSBCNER: NER for all (global) entities (i.e., all IP Groups and SRDs)
• PM_gwSBCIPGroupNER: NER per IP Group
• PM_gwSBCSRDNER: NER per SRD
If the configured NER minor or major thresholds are crossed, the device raises the
SNMP alarm, AcNERThresholdAlarm (OID 1.3.6.1.4.1.5003.9.10.1.21.2.0.113).
Average Call Duration (ACD): The ACD plus the session disconnect time (SDD) is
the duration from when the SIP 200 OK is received to when the SIP Bye message is
sent. The metric is calculated for both incoming and outgoing call legs. The metric
includes the following SNMP performance monitoring MIBs:
• PM_gwSBCACD: ACD for all (global) entities (i.e., all IP Groups and SRDs)
• PM_gwSBCIPGroupACD: ACD per IP Group
• PM_gwSBCSRDACD: ACD per SRD
If the configured ACD minor or major thresholds are crossed, the device raises the
SNMP alarm, acACDThresholdAlarm (OID 1.3.6.1.4.1.5003.9.10.1.21.2.0.112).
To view ACD in the Web interface, see ''Viewing Average Call Duration'' on page 814.
At any given time during a call, a voice metric can be in one of the following color-coded
quality states (as displayed by SEM):
Green: Indicates good call quality
Yellow: Indicates fair call quality
Red: Indicates poor call quality
When the threshold of a voice metric is crossed, the device changes the alarm severity and
corresponding color-coded quality state of the call:
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