← Back to Articles
Modem Sessions KPIs
Last Updated: July 07, 2026

Modem Sessions will poll a number of KPIs related to connectivity, performance, traffic, and quality to help determine the source of degraded telephony service.

Individual Modem, CMTS, and Channel KPIs

Modem
KPIs measured at the modem.
  • CM Status
  • CM Status Extended (Cisco)
  • CM Latency (Ping)
  • CM Upstream Bitrate
  • CM Downstream Bitrate
CMTS
KPIs measured at the CMTS.
  • CMTS CPU Utilization
Channel
KPIs measured on the channel.
  • CM Counts (per Upstream SC-QAM and OFDMA channel)
    • Online
    • Offline
    • Total
  • Downstream Channel Utilization
  • Upstream Channel Utilization
  • SC-QAM Upstream RxMer (for non-E6000® CMTSs only)
  • Minislot Utilization (Upstream SC-QAM and OFDMA channel)
  • CCER+CER OFDMA
  • CER OFDMA
  • CCER OFDMA
  • CCER+CER Upstream SC-QAM
  • CER Upstream SC-QAM
  • CCER Upstream SC-QAM
  • SNR Upstream SC-QAM

Modem + Channel KPIs

Modem + Channel KPIs are measured at a given modem on a specific channel.

SC-QAM
KPIs measured on SC-QAM channels.
  • DS CCER+CER
  • DS CER
  • DS CCER
  • DS Spectral Response
  • DS SNR
  • DS MER
  • DS Rx Power
  • US Composite Eq
  • US Echo Response
  • US Group Response
  • US Tx Power
  • US Rx Power
  • US Attenuation
  • US SNR
  • US CCER+CER
  • US CER
  • US CCER
OFDM
KPIs measured on OFDM channels.
  • Average Rx Power
  • Mean MER
  • MER Percentile
  • MER Percentile Value
  • PLC CER
  • NCP CER
  • CCER+CER
  • Channel CCER+CER
  • CER
  • Channel CER
  • CCER
  • Channel CCER
  • Highest Profile
  • Highest Speed
  • Channel Utilization
  • Profile Utilization
  • MER Deviation
  • NPC CER
  • PLC CER
  • Highest Modulation
OFDMA
KPIs measured on OFDMA channels.
  • Average Rx Power
  • Tx Power
  • Attenuation
  • Mean MER
  • MER Percentile
  • MER Percentile Value
  • CCER+CER
  • Channel CCER+CER
  • CER
  • Channel CER
  • CCER
  • Channel CCER
  • IUC Utilization
  • Highest IUC
  • Highest Modulation
  • IUC Modulation
  • Channel Utilization
  • Minislot Utilization
  • CMTS Channel CCER+CER
  • CMTS Channel CER
  • CMTS Channel CCER
  • CMTS CCER+CER
  • CMTS CER
  • CMTS CCER
  • Total CM Count
  • Online CM Count
  • Offline CM Count
  • MER Deviation
  • NPC CER
  • PLC CER
  • T3 Errors
  • T4 Errors
NOTE: Refer to Key performance indicators for definitions of key performance indicators.