JUNIPER-COS-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › JUNIPER-COS-MIB

Organization: Juniper Networks, Inc.

Last Updated: 2014--1-1-

Category: Quality of Service, Technology: QoS, Vendor: Juniper

Description: Defines managed objects for Class of Service (CoS) configuration, queuing, and scheduling statistics on Juniper Networks routers and switches.

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What Is JUNIPER-COS-MIB?

This is a Juniper Networks enterprise MIB for Class of Service (CoS) infrastructure on Junos routers and switches, covering queuing, scheduling, and traffic-classification mechanisms such as Random Early Detection (RED), Packet Loss Priority (PLP), and DSCP-based classification. As a CoS-focused MIB it is generally used to expose queue/scheduler configuration and per-queue performance counters that indicate whether the device's software-based traffic management is functioning correctly under load. No sample objects were provided for this module, so specific table/object names cannot be confirmed, but such data falls under performance/traffic-management monitoring rather than physical hardware health. Junos documentation is explicitly cited as the authoritative reference, indicating this MIB depends on Junos CoS concepts defined outside the MIB itself. Typical deployment is on Juniper Networks routers and switches running Junos, in networks requiring differentiated traffic handling for voice/video/data prioritization. Engineers can download the JUNIPER-COS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in JUNIPER-COS-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • Juniper Networks router/switch (Junos)

Monitoring Examples

No sample objects were provided for this MIB, so a concrete polling scenario using confirmed real object names cannot be given honestly. Based on the description, an admin would typically poll per-queue/scheduler statistics, such as RED drop counts or DSCP-classified traffic counts, to detect congestion or misclassified traffic on a Junos interface.

Imported Objects

From HCNUM-TC

CounterBasedGauge64

From IF-MIB

InterfaceIndex

From JUNIPER-SMI

jnxCosNotificationsOBJECT-IDENTITY
jnxMibsOBJECT-IDENTITY

From SNMPv2-SMI

Counter64
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
OIDs

RFC description

Manages Juniper Class of Service (COS) infrastructure including queue management and traffic shaping.

Start monitoring Juniper Networks router/switch, Junos (Class of Service infrastructure) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download JUNIPER-COS-MIB