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xbernardJul 28, 2025
What to do if the Juniper QFX Switch RE /var partition is full?
- CcgibsonJul 28, 2025
If the /var partition on your Juniper Switch RE is full, you should clean up the system file storage space on the switch.
What to do if the Juniper QFX Switch RE /var partition is full?
If the /var partition on your Juniper Switch RE is full, you should clean up the system file storage space on the switch.
What to do if the Juniper QFX fan fails?
If a fan module fails in your Juniper switch, replace the fan module and report the failure to customer support.
How to fix a Juniper QFX Switch PEM that is not powered?
If a PEM (power entry module) in your Juniper switch is not powered, check the power cord connection and reconnect it if necessary.
What to do if Management Ethernet 1 Link is down on Juniper QFX?
If the Management Ethernet 1 link is down on your Juniper switch, verify that a cable is properly connected to the management Ethernet interface and ensure that the cable is not defective. Replace the cable if needed.
What to do if FPC Management1 Ethernet Link is down on Juniper QFX Switch?
If the FPC Management1 Ethernet link is down, check if a cable is connected to the management Ethernet interface, or if the cable is defective. Replace the cable, if required.
What to do if Fan/Blower is absent in Juniper QFX?
If a fan module is absent in your Juniper switch, install fan modules in the empty slots.
General| Category | Switch |
|---|---|
| Series | QFX |
| Form Factor | 1U, 2U, and modular chassis options |
| Power Supply | Redundant, hot-swappable power supplies |
| Cooling | hot-swappable fans |
| Virtual Chassis | Supported on certain models |
| Typical Use | Data center, cloud |
| Operating System | Junos OS |
| Management | CLI |
| Key Features | High performance, low latency, automation |
| Latency | Sub-microsecond latency |
| Port Density | Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE) |
