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Table of Contents
- play_arrow Fast Track: Initial Installation
- play_arrow Overview
- play_arrow MX2020 System Overview and Architecture
- MX2020 Universal Edge Router Overview
- MX Series Router Architecture
- MX2020 Chassis Description
- MX2020 Backplane Description
- MX2020 Component Redundancy
- MX2020 Field-Replaceable Units
- MX Series Router Packet Forwarding Engine (PFE) Architecture
- Line Cards Supported on MX Series Routers
- Ethernet Frame Counts and Statistics on MX Series Routers
- MX2020 Router Hardware Components and CLI Terminology
- Understanding Trio Layer 2 Feature Parity
- play_arrow Alarm and Display Components
- play_arrow Cable and Rack Management
- play_arrow Cooling System Components and Descriptions
- play_arrow Host Subsystem Components
- MX2000 Host Subsystem CB-RE Description
- RE-MX2000-1800x4 CB-RE Description
- REMX2K-X8-64G and REMX2K-X8-64G-LT CB-RE Description
- CB-RE LEDs
- REMX2K-X8-128G CB-RE Description
- MX2000 Switch Fabric Board (SFB) Overview
- MX2000-SFB-S Switch Fabric Board Description
- MX2000-SFB2-S Enhanced Switch Fabric Board Description
- MX2000-SFB3 Switch Fabric Board Description
- play_arrow Interface Modules— ADCs, MPCs, and MICs
- MX Series Interface Module Reference
- MX2000 Modular Interface Card (MIC) Description
- MICs Supported by MX Series Routers
- MX2020 Modular Interface Card LEDs
- MX2020 Modular Port Concentrator (MPC) Description
- MPCs Supported by MX Series Routers
- MX2020 Modular Port Concentrator LEDs
- MX2000 Adapter Card (ADC) Description
- MPC Terminology
- MX2020 Port and Interface Numbering
- play_arrow Power Subsystem
- MX2020 Power Subsystem Description
- MX2020 Power Midplane Description
- MX2000 Three-Phase Delta AC Power Distribution Module Description
- MX2000 Three-Phase Wye AC Power Distribution Module Description
- MX2000 Seven-Feed Single-Phase AC Power Distribution Module Description
- MX2000 Nine-Feed Single-Phase AC Power Distribution Module Description
- MX2000 Three-Phase Delta and Wye AC Power Distribution Module LEDs
- MX2000 AC Power Supply Module Description
- MX2020 AC Power Supply Module LEDs
- MX2020 DC Power Distribution Module (-48 V) Description
- MX2000 DC Power Distribution Module (240 V China) Description
- MX2020 DC Power Distribution Module (-48 V) LEDs
- MX2000 DC Power Distribution Module (240 V China) LEDs
- MX2020 DC Power Supply Module (-48 V) Description
- MX2000 DC Power Supply Module (240 V China) Description
- MX2020 DC Power Supply Module LEDs
- MX2000 High-Voltage Universal (HVAC/HVDC) Power Distribution Module Description
- MX2000 High-Voltage Universal (HVAC/HVDC) Power Distribution Module LEDs
- MX2000 High-Voltage Universal (HVAC/HVDC) Power Supply Module Description
- MX2020 High-Voltage Universal Power Supply Module LEDs
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- play_arrow Site Planning, Preparation, and Specifications
- play_arrow Planning and Preparing the Site
- Overview of Preparing the Site for the MX2020 Router
- MX2020 Site Preparation Checklist
- MX2020 Physical Specifications
- MX2020 Rack Requirements
- MX2020 Cabinet Size and Clearance Requirements
- Clearance Requirements for Airflow and Hardware Maintenance for the MX2020 Router
- MX2020 Cabinet Airflow Requirements
- MX2020 Router Environmental Specifications
- MX2000 Router Grounding Specifications
- MX2020 Chassis Moving Guidelines
- MX2020 Moving Requirements and Guidelines Using a Router Transport Kit
- Rack-Mounting Requirements
- play_arrow Transceiver and Cable Specifications
- play_arrow Pinout Specifications
- RJ-45 Connector Pinouts for MX Series CB-RE Auxiliary and Console Ports
- RJ-45 Connector Pinouts for an MX Series CB-RE or RCB Management Port
- Management Cable Specifications
- Console Port Connector Pinout Information
- RJ-45 to DB-9 Serial Port Adapter Pinout Information
- Mini-USB Port Pinout Specifications
- RJ-45 Management Port Connector Pinout Information
- RJ-45 Port, SFP Port, SFP+ Port, QSFP+ Port, and QSFP28 Port Connector Pinout Information
- play_arrow AC Power Requirements, Specifications, and Guidelines
- MX2020 AC Power Requirements
- MX2000 AC Power Cord Specifications
- MX2000 AC Power System Electrical Specifications
- MX2000 Router Grounding Specifications
- MX2000 Three-Phase Delta AC Power Distribution Module Electrical Specifications
- MX2000 Three-Phase Wye AC Power Distribution Module Electrical Specifications
- MX2000 Single-Phase AC Power Distribution Module Electrical Specifications
- Calculating AC Power Requirements for MX2020 Routers
- Mapping Input Power from AC Power Distribution Modules to AC Power Supply Modules on MX2000 Routers
- play_arrow DC Power Requirements, Specifications, and Guidelines
- MX2020 DC Power Requirements
- MX2020 DC Power Distribution Description
- MX2020 DC Power Distribution (240 V China) Description
- MX2000 Router DC (-48 V) Power Subsystem Electrical Specifications
- MX2000 Router DC (240 V China) Power Subsystem Electrical Specifications
- Determining DC Power Requirements for Your MX2020 Router
- DC Power (-48 V) Circuit Breaker Requirements for the MX2020 Router
- DC Power (240 V China) Circuit Breaker Requirements for the MX2000 Router
- DC Power Cable Specifications for the MX2020 Router
- play_arrow Universal (HVAC/HVDC) Power Requirements, Specifications, and Guidelines
- MX2020 High-Voltage Universal Power Requirements
- MX2000 High-Voltage Universal PDM (MX2K-PDM-HV) Power Cord Specifications
- MX2000 Router High-Voltage Universal (HVAC/HVDC) Power Subsystem Electrical Specifications
- Determining High-Voltage Universal Power Requirements for Your MX2020 Router
- High-Voltage Universal (HVAC/HVDC) Power Circuit Breaker Requirements for the MX2000 Router
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- play_arrow Initial Installation and Configuration
- play_arrow Installation Overview
- Installing an MX2020 Router Overview
- Tools and Parts Required to Unpack the MX2020 Router
- Tools Required to Install the MX2020 Router Using a Pallet Jack
- Tools Required to Install the MX2020 Router Using a Router Transport Kit
- Tools and Parts Required for Connecting an MX2000 Router to Power
- Tools and Parts Required to Maintain the MX2020 Hardware Components
- Tools and Parts Required for MX2020 Router Connections
- play_arrow Unpacking the Router
- play_arrow Installing the Mounting Hardware
- play_arrow Installing the Router
- Removing Components from the MX2020 Router Chassis Before Installing it in a Rack
- Installing a MX2020 Router Using a Pallet Jack Overview
- Installing the Pallet Jack Attachment
- Installing the MX2020 Router Using a Pallet Jack with Attachment
- Installing a MX2020 Router Using a Router Transport Kit Overview
- Installing the Router Transport Kit on the MX2020 Router
- Securing the MX2020 Router to the Router Transport Platform
- Installing the MX2020 Router Using a Router Transport Kit
- Reinstalling Components in the MX2020 Router After Installing in a Rack
- play_arrow Connecting the MX2020 to Ground
- play_arrow Providing Power to the MX2020
- Connecting Power to an MX2000 Single-Phase AC Power Distribution Module
- Connecting AC Power to an MX2000 Router with Three-Phase Delta AC Power Distribution Modules
- Connecting AC Power to an MX2000 Router with Three-Phase Wye AC Power Distribution Modules
- Mapping Input Power from AC Power Distribution Modules to AC Power Supply Modules on MX2000 Routers
- Installing MX2020 AC Power Supply Modules
- Installing MX2000 Router DC Power Supply Modules (-48 V)
- Installing MX2000 Router DC Power Supply Modules (240 V China) or High-Voltage Universal (HVAC/HVDC) Power Supply Modules
- Connecting Power to a DC-Powered MX2020 Router with Power Distribution Modules (-48 V)
- Connecting Power to a DC-Powered MX2000 Router with DC Power Distribution Modules (240 V China)
- Connecting an MX2000 DC Router Power Distribution Module (-48 V) Cable
- Connecting an MX2000 DC Router Power Distribution Module (240 V China) Cable
- Connecting Power to a High Voltage-Powered MX2000 Router with Power Distribution Modules
- Powering On the DC-Powered (-48 V) MX2020 Router
- Powering On the DC-Powered (240 V China) MX2000 Router
- Powering On a Three-Phase AC-Powered MX2000 Router
- Powering On the High-Voltage Powered Universal (HVAC/HVDC) MX2000 Router
- play_arrow Connecting the MX2020 to the Network
- Connecting the MX2020 Router to Management and Alarm Devices
- Connecting the MX2020 Router to a Network for Out-of-Band Management
- Connecting the MX2020 Router to a Console or Auxiliary Device
- Connecting an MX2020 Router to an External Alarm-Reporting Device
- Connecting the Alarm Relay Wires to the MX2020 Craft Interface
- Disconnecting the Alarm Relay Wires from the MX2020 Craft Interface
- Connecting MPC or MIC Cables to the MX2020 Router
- Register Products—Mandatory to Validate SLAs
- play_arrow Configuring the Junos OS Software
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- play_arrow Troubleshooting Hardware
- play_arrow Contacting Customer Support and Returning the Chassis or Components
- play_arrow Contacting Customer Support
- play_arrow Locating Component Serial Numbers
- Displaying MX2020 Router Components and Serial Numbers
- MX2020 CB-RE Serial Number Label
- MX2020 Craft Interface Serial Number Label
- MX2020 Fan Tray Serial Number Label
- MX2020 MIC Serial Number Label
- MX2020 MPC Serial Number Label
- MX2020 Power Distribution Module Serial Number Label
- MX2020 Power Supply Module Serial Number Label
- MX2020 SFB Serial Number Label
- play_arrow Packing and Returning Components
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- play_arrow Safety and Compliance Information
- play_arrow General Safety Guidelines and Warnings
- play_arrow Installation and Maintenance Safety Guidelines and Warnings
- play_arrow Radiation and Laser Warnings
- play_arrow Maintenance and Operational Safety Guidelines and Warnings
- play_arrow Electrical Safety Guidelines and Warnings
- General Electrical Safety Guidelines and Warnings
- Prevention of Electrostatic Discharge Damage
- AC Power Electrical Safety Guidelines
- AC Power Disconnection Warning
- DC Power Copper Conductors Warning
- DC Power Disconnection Warning
- DC Power Grounding Requirements and Warning
- DC Power Wiring Sequence Warning
- DC Power Wiring Terminations Warning
- Midplane Energy Hazard Warning
- Multiple Power Supplies Disconnection Warning
- Action to Take After an Electrical Accident
- play_arrow Agency Approvals and Compliance Statements
-
list Table of Contents
Maintaining the MX2020 Routing Engines
date_range
09-Mar-21
Purpose
Each host subsystem comprises a Control Board and Routing Engine (CB-RE) functioning together.
To maintain the host subsystem, check the LEDs (RE0 and RE1) on the craft interface. For more information about the LEDs and the display, see MX2020 Craft Interface Description.
Note:
Even though the Routing Engine is combined with a Control Board (CB-RE), separate LEDs on the craft interface show the status of the routing engines, and separate LEDs show the status of the Control Board.
For optimum router performance, verify the condition of the Routing Engines and the CB-REs.
Action
On a regular basis:
Check the host subsystem LEDs on the craft interface. For more information about the LEDs, and the display, see MX2020 Craft Interface Description. During normal operations:
Note:Even though the Routing Engine is combined with a Control Board (CB-RE), separate LEDs on the craft interface show the status of the routing engines, and separate LEDs show the status of the Control Board.
The green host subsystem ONLINE LED on the craft interface is lit.
The red host subsystem OFFLINE LED on the craft interface is not lit.
Check the LEDs on the Routing Engine portion of the CB-RE faceplate. During normal operations, the ONLINE LED is lit steadily green.
Issue the
show chassis routing-enginecommand to check the status of the Routing Engines. The output is similar to the following:
content_copy zoom_out_map
user@host> show chassis routing-engine
Routing Engine status:
Slot 0:
Current state Master
Election priority Master (default)
Temperature 36 degrees C / 96 degrees F
CPU temperature 31 degrees C / 87 degrees F
DRAM 16351 MB (16384 MB installed)
Memory utilization 7 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 4 percent
Interrupt 1 percent
Idle 95 percent
Model RE-S-1800x4
Serial ID 9009099715
Start time 2012-12-02 23:37:00 PST
Uptime 10 hours, 16 minutes, 36 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.00 0.00 0.00
Routing Engine status:
Slot 1:
Current state Backup
Election priority Backup (default)
Temperature 28 degrees C / 82 degrees F
CPU temperature 26 degrees C / 78 degrees F
DRAM 3313
Memory utilization 22 percent
CPU utilization:
User 0 percent
Background 0 percent
Kernel 0 percent
Interrupt 0 percent
Idle 100 percent
Model RE-S-1800x4
Serial ID 9009099711
Start time 2012-11-30 15:56:39 PST
Uptime 2 days, 17 hours, 56 minutes, 36 seconds
Last reboot reason Router rebooted after a normal shutdown.
Load averages: 1 minute 5 minute 15 minute
0.00 0.00 0.00
For further description of the output from the command, see the Junos OS System Basics and Services Command Reference.
