Fabric Chassis MIB
The Juniper Networks enterprise-specific SNMP Fabric Chassis MIB (mib-jnx-fabric-chassis) provides hardware information about the QFabric system and its component devices in a single MIB. The Fabric Chassis MIB is based on the Juniper Networks enterprise-specific Chassis MIB that provides information for individual devices. Unlike the Chassis MIB, the Fabric Chassis MIB represents the QFabric system component devices as part of the QFabric system. Only the information from the Fabric Chassis MIB (and not from individual Chassis MIBs) is available to SNMP management clients of the QFabric system.
The Fabric Chassis MIB uses the basic information structure of the Chassis MIB, but adds another level of indexing that provides detailed information about QFabric system devices. Each physical device in a QFabric system (such as a Node device or an Interconnect device) is represented with its hardware components, including the power supply, fans, and front and rear cards.
As in other SNMP systems, the SNMP manager resides on the network management system (NMS) of the network to which the QFabric system belongs. The SNMP agent (snmpd) resides in the QFabric system Director software and is responsible for receiving and distributing all traps as well as responding to all queries from the SNMP manager. In addition, there is an SNMP subagent running in the Routing Engine of each Node group and Interconnect device. The SNMP subagent manages the information about the component device, and that information is communicated to the SNMP agent in the Director software as needed. Traps that are generated by a Node device are sent to the SNMP agent in the Director software, which in turn processes and sends them to the target IP addresses that are defined in the SNMP configuration.
Table 1 describes the tables and objects in the Fabric Chassis MIB.
Table 1: Fabric Chassis MIB Tables and Objects
Table or Object Name | Root OID | Description |
|---|---|---|
| Tables with Counterparts in the Chassis MIB | ||
jnxFabricContainersTable | 1.3.6.1.4.1.2636.3.42.2.2.2 | Provides information about different types of containers in QFabric system devices.
|
jnxFabricContentsTable | 1.3.6.1.4.1.2636.3.42.2.2.3 | Contains contents that are present across all devices represented in the jnxFabricDeviceTable object. This table includes all field replaceable units (FRUs) and non-FRUs for QFabric system devices.
|
jnxFabricFilledTable | 1.3.6.1.4.1.2636.3.42.2.2.4 | Shows the status of containers in QFabric devices. The jnxFabricFilledState object represents the state of the component: (1) unknown, (2) empty, or (3) filled. Note: The jnxFabricFilledTable object does not contain information about the Director group. |
jnxFabricOperatingTable | 1.3.6.1.4.1.2636.3.42.2.2.5 | Represents different operating parameters for the contents that are populated in the jnxFabricContentsTable object.
The jnxFabricOperatingState object provides the state of the device: (1) unknown, (2) running, (3) ready, (4) reset, (5) runningAtFullSpeed (for fans only), (6) down, (6) off (for power supply units), or (7) standby. |
jnxFabricRedundancyTable | 1.3.6.1.4.1.2636.3.42.2.2.6 | Represents the redundancy information that is available at different subsystem levels across the QFabric system. Information about the Routing Engines in Node devices is included, but there are no corresponding entries for Interconnect devices in this table. The jnxFabricRedundancyState object indicates the state of the subsystem: (1) unknown, (2) master, (3) backup, or (4) disabled. Note: Information about redundant Director devices, virtual machines (VMs) within Director groups, and Virtual Chassis devices is not available at this time. |
jnxFabricFruTable | 1.3.6.1.4.1.2636.3.42.2.2.7 | Contains all FRUs for the QFabric system in the jnxFabricDeviceTable table. The FRUs are listed regardless of whether or not they are installed or online. The jnxFabricFruState object represents the state of the FRU, including online, offline, or empty, and so on. This table also contains information about each FRU, such as name, type, temperature, time last powered on, and time last powered off. Note: The jnxFabricFruTable table does not include network interface cards (NICs) on Director devices. |
| Table Specific to the Fabric Chassis MIB | ||
jnxFabricDeviceTable | 1.3.6.1.4.1.2636.3.42.2.2.1 | Contains information about all devices in the QFabric system. This table organizes scalar variables represented in the Chassis MIB into a table format for the QFabric system component devices. Columns in this table include device information such as model, device alias, and serial number. The jnxFabricDeviceIndex identifies each QFabric system device (Node device, Interconnect device, and Director device). Note: At this time, information about the Virtual Chassis is not available. Note: The following objects are not supported:
|
| Scalar Variables | ||
The following scalar variables are supported:
| 1.3.6.1.4.1.2636.3.42.2.1 | Describe the QFabric system as a whole. Note: The jnxFabricFirmwareRevision scalar variable is not supported at this time. |
Table 2 describes the SNMPv2 traps that are defined in the Fabric Chassis MIB.
 | Note: Only SNMPv2 traps are supported on the QFabric system. |
Table 2: Fabric Chassis MIB SNMPv2 Traps
Trap Group and Name | Root OID | Description |
|---|---|---|
jnxFabricChassisTraps group—Includes the following traps:
| 1.3.6.1.4.1.2636.4.19 | Indicates an alarm condition. Note: Hardware events on the Director group are detected by scanning. As a result, a trap may not be generated until up to 30 seconds after the event has occurred. Note: The software does not distinguish between the fan removal and fan failure events on the Director group. In each case, both the jnxFabricFanFailure and jnxFabricFruFailed traps are generated. Note: The software does not distinguish between the fan insertion and fan OK events on the Director group. In each case, both the jnxFabricFanOK and jnxFabricFruOK traps are generated. |
jnxFabricChassisOKTraps group—Includes the following traps:
| 1.3.6.1.4.1.2636.4.20 | Indicates an alarm cleared condition. |
For more information, see the Fabric Chassis MIB at:
https://www.juniper.net/techpubs/en_US/junos13.1/topics/reference/mibs/mib-jnx-fabric-chassis.txt
