Juniper EX4100 User Manual

Table 44: show chassis temperature-thresholds Output Fields (Connued)
Field Name Field Descripon
Red alarm Temperature threshold, in degrees Celsius, that triggers a red alarm.
• Normal—The temperature threshold that must be exceeded on
the device to trigger a red alarm when the fans are running at
full speed.
• Bad fan—The temperature threshold that must be exceeded on
the device to trigger a red alarm when one or more fans have
failed or are missing.
Fire shutdown Temperature threshold, in degrees Celsius, at which the switch
shuts down in case of re.
When a temperature alarm is triggered, you can idenfy the condion that triggered it by running the
show chassis environment command to display the chassis temperature values for each component and
comparing those with the temperature threshold values. You can display the temperature threshold
values by running the show chassis temperature-thresholds command.
For example, for FPC 3:
• If the temperature of FPC 3 exceeds 55° C, the output indicates that the fans are operang at a high
speed (no alarm is triggered).
• If the temperature of FPC 3 exceeds 65° C, a yellow alarm is triggered to indicate that one or more
fans have failed.
• If the temperature of FPC 3 exceeds 75° C, a yellow alarm is triggered to indicate that the temperature
threshold limit is exceeded.
• If the temperature of FPC 3 exceeds 80° C, a red alarm is triggered to indicate that one or more fans
have failed.
• If the temperature of FPC 3 exceeds 105° C, a red alarm is triggered to indicate that the temperature
threshold limit is exceeded.
•
If the temperature of FPC 3 exceeds 110° C, the switch is powered o.
Table 45 on page 210 lists the possible causes for the switch to generate a temperature alarm. It also
lists the respecve remedies.
209

Juniper EX4100 Specifications

General

Model	EX4100
Category	Switch
Layer	Layer 2/3
Power Consumption	Varies by model and configuration
PoE	Optional
Management	Web UI, CLI, SNMP
Operating Temperature	0°C to 45°C
Input Voltage	100-240V AC
Storage Temperature	-40°C to 70°C
Humidity	5% to 90% non-condensing
DC Power Input	-48V DC
JUNOS OS	Yes
Security Features	ACLs
Layer 2 Features	VLAN, RSTP, MSTP, LACP
Layer 3 Features	Static routing, OSPF
QoS	8 queues per port