M o n i t o r i n g J u n i p e r E X S w i t c h
16
test
Failed fans:
Indicates the number of
events of this type that were
triggered during the last
measurement period.
Number
The failure events may be generated due to
the failure of the fans of the Juniper EX
Switch. If the failure events are not rectified
within a certain pre-defined timeperiod, the
storage
system
will
be
shutdown
automatically.
Ideally, the value of this measure should be
zero. A high value is an indication of
performance degradation of the Juniper EX
Switch.
1.2
The JEX Service Layer
This layer tracks the CPU mode of each routing engine available in the Juniper EX Switch.
Figure 3: The tests mapped to the JEX Service layer
1.2.1
Switch Details Test
The Routing Engine runs the Junos OS. Software processes that run on the Routing Engine maintain the routing
tables, manage the routing protocols used on the router, control the router interfaces, control some chassis
components, and provide the interface for system management and user access to the router.
You can install one or two Routing Engines in the router. Each Routing Engine must be installed directly into an SCB.
A USB port on the Routing Engine accepts a USB memory device that allows you to load Junos OS. The Routing
Engines install into the front of the chassis in vertical slots directly into the SCBs labeled 0 and 1. If two Routing
Engines are installed, one functions as the master and the other acts as the backup. If the master Routing Engine
fails or is removed and the backup is configured appropriately, the backup takes over as the master.
This test reports the mode of each routing engine available in the Juniper EX Switch.
Purpose
Monitors the mode of each routing engine available in the Juniper Ex Switch
Target of the
test
A Juniper EX Switch
Agent
deploying the
test
An external agent
