- play_arrow Fast Track: Initial Installation
- play_arrow Site Planning, Preparation, and Specifications
- play_arrow Initial Installation and Configuration
- Installing an MX2008 Router Overview
- Unpacking the MX2008
- Installing the MX2008
- Connecting the MX2008 to Earth Ground
- Connecting the MX2008 to AC Power
- Connecting the MX2008 to DC Power
- Connecting the MX2008 to High-Voltage Power
- Connecting the MX2008 to the Network
- Register Products—Mandatory to Validate SLAs
- Initially Configuring the MX2008 Router
- play_arrow Maintaining Components
- play_arrow Troubleshooting Hardware
- play_arrow Contacting Customer Support and Returning the Chassis or Components
- play_arrow Safety and Compliance Information
- Definition of Safety Warning Levels
- General Safety Guidelines for Juniper Networks Devices
- General Safety Warnings for Juniper Networks Devices
- Preventing Electrostatic Discharge Damage to an MX2008 Router
- Fire Safety Requirements for Juniper Networks Devices
- Installation Safety Warnings for Juniper Networks Devices
- General Laser Safety Guidelines for Juniper Networks Devices
- Laser Safety Warnings for Juniper Networks Devices
- Maintenance and Operational Safety Warnings for Juniper Networks Devices
- In Case of an Electrical Accident
- General Electrical Safety Warnings for Juniper Networks Devices
- General Electrical Safety Guidelines and Electrical Codes for Juniper Networks Devices
- TN Power Warning for MX2008 Routers
- MX2000 Three-Phase AC Power Electrical Safety Guidelines
- MX2008 DC Power Electrical Safety Guidelines and Warnings
- DC Power Electrical Safety Warnings for Juniper Networks Devices
- Site Electrical Wiring Guidelines for MX Series Routers
- Agency Approvals and Compliance Statements for the MX2008 Router
MX2008 Switch Fabric Boards
MX2008 Enhanced Switch Fabric Board (MX2008 SFB2) Description
The MX2008 Enhanced Switch Fabric Board (MX2008 SFB2; model number: MX2008-SFB2) connects to the signal backplane (see Figure 1). The MX2008 SFB2 and the native MX2000 SFB2 are exactly the same except that the native MX2000 SFB2 has two PF fabric chips per card whereas MX2008 SFB2 has only one PF fabric chip per card, and that MX2008 SFB2 is less than half the size of the native MX2000 SFB2.
1 — OK/FAIL LED showing the SFB2 status |
MX2008 SFB2 Slots
You can install up to eight SFB2 boards in the MX2008 router. The MX2008 SFB2 boards install vertically into the front of the chassis in the slots labeled 0 through 7. If any slots are empty, you must install a blank panel.
If one of the MX2008 SFB2s fails, do not remove the failed SFB2 until you have a replacement or blank panel to install.
MX2008 SFB2 Redundancy
Seven out of eight MX2008 SFB2 boards are required for line-rate operation. The system can continue operating with fewer than seven SFB2s, but forwarding performance is impacted.
MX2008 SFB2 Components
Each MX2008 SFB2 consists of the following components:
One PF fabric chip per card
PCIe control of one PF ASIC
I2C bus logic interface, used for component management and monitoring of temperature, and voltage
Switch fabric—Provides the switching functions for the MPCs
Fabric capacity—MX2008 SFB2 supports 2000 Gbps per slot throughput without redundancy
Circuits for chassis management and control
Power circuits for the MX2008 SFB2
LED—Provides status of the MX2008 SFB2
See Also
MX2008 SFB LED
One bicolor LED on the MX2008 SFB2 indicates the status of the SFB. The LED, labeled OK/FAIL, is located directly on the SFB. Table 1 describes the functions of the MX2008 SFB2 LED.
Function No. | Label | Color | State | Description |
|---|---|---|---|---|
1 | OK/FAIL | Green | Slow blinking when being initialized. Fast blinking when SFB is being identified by software. Note: The blinking of the LED is used to guide the operator to correct any action needed on the SFB. | SFB is online. |
Red | On steadily | SFB has failed. | ||
– | Off | SFB is offline. |
Each SFB also has a set of bicolor LEDs on the craft interface that indicate its status. The SFB LED, labeled 0 through 7, are located along the bottom center of the craft interface. For more information about the SFB LEDs on the craft interface, see MX2008 Component LEDs on the Craft Interface.
