CM-PERFORMANCE-MIB :: e1t1HistoryLineCVs

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCM-PERFORMANCE-MIBe1t1HistoryLineCVs

e1t1HistoryLineCVs

Module: CM-PERFORMANCE-MIB

OID (symbolic): CM-PERFORMANCE-MIB::e1t1HistoryLineCVs

OID (numeric): 1.3.6.1.4.1.2544.1.12.5.1.56.1.5

Node type: OBJECT-TYPE

Type: PerfCounter64

Access: read-only

Description: The counter associated with the number of Coding Violations encountered by a E1/T1 interface in the history bin.

What is e1t1HistoryLineCVs?

This PerfCounter64 counts Coding Violations encountered by an E1/T1 interface's line layer in the history bin. An admin trends line CVs across successive history bins to catch slow physical-layer degradation on a T1/E1 span before it turns into severely errored seconds. If e1t1HistoryLineCVs rises steadily bin over bin on a leased T1 span, the admin has grounds to schedule a cable or repeater inspection ahead of a full outage.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.5.1.56.1.5
snmpwalk -v2c -c public <target> CM-PERFORMANCE-MIB::e1t1HistoryLineCVs

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.5.1.56.1.5.1
snmpget -v2c -c public <target> CM-PERFORMANCE-MIB::e1t1HistoryLineCVs.1

Start monitoring ADVA/Ceragon FSP150 CM/CC (F3) microwave & Carrier Ethernet transport platform with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CM-PERFORMANCE-MIB::e1t1HistoryLineCVs OID value, configure state conditions and alerts, and monitor any ADVA/Ceragon FSP150 CM/CC (F3) microwave & Carrier Ethernet transport platform from a single console.

OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.2544advaMIBADVA-MIB
1.3.6.1.4.1.2544.1productsADVA-MIB
1.3.6.1.4.1.2544.1.12fsp150cmADVA-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2544.1.12.5cmPerformanceMIBCM-PERFORMANCE-MIB
1.3.6.1.4.1.2544.1.12.5.1cmPerfObjectsCM-PERFORMANCE-MIB
1.3.6.1.4.1.2544.1.12.5.1.56e1t1HistoryTableCM-PERFORMANCE-MIB
1.3.6.1.4.1.2544.1.12.5.1.56.1e1t1HistoryEntryCM-PERFORMANCE-MIB
1.3.6.1.4.1.2544.1.12.5.1.56.1.5e1t1HistoryLineCVsCM-PERFORMANCE-MIB