MX10004 Routing and Control Board Components and Descriptions

Routing and Control Board Functions

The Routing and Control Board (RCB) integrates the control plane and Routing Engine functions into a single management unit. Each RCB provides all the functions needed to manage the operation of the modular chassis:

• System control functions such as environmental monitoring

• Routing Layer 2 and Layer 3 protocols

• Communication to all components such as line cards, Switch Fabric Boards (SFBs), and power and cooling

• Transparent clocking

• Alarm and logging functions

Routing and Control Board Components

1 — Handles	8 — BITS0 clock port
2 — Solid State Disk (SSD) LEDs	9 — Reset button
3 — Clock LEDs	10 — Online/Offline button
4 — BITS1 clock port	11 — USB port
5 — GPS clock ports	12 — Management (MGMT) ports
6 — XGE-0 and XGE-1 not used (reserved ports)	13 — Console (CONSOLE) port
7 — ToD—Time-of-day (TOD) port	14 — RCB status LEDs

Each RCB consists of the following internal components:

• CPU—Runs Junos OS to maintain the routing tables and routing protocols.

• EEPROM—Stores the serial number of the Routing Engine.

• DRAM—Provides storage for the routing and forwarding tables and for other Routing Engine processes.

• One 10-Gigabit Ethernet interface between the Routing Engine and Switch Fabric Board.

• One USB port—Provides a removable media interface through which you can install Junos OS manually. The Junos OS supports USB versions 3.0, 2.0, and 1.1.

• Management ports—Two ports, one copper (RJ-45 port) and one SFP port, provide access to management devices. Use only one of the two management ports at a time.

  Use an RJ-45 connector for the copper port.

  Use a fiber optic connector for the SFP port.

  Do not use copper SFP or SFP-T modules in the SFP port because they are not supported.

• RESET button—When pressed, reboots the RCB as detailed below:

  • When pressed for fewer than 5 seconds for diagnostic purposes, the RCB does not reset. The press event is logged in the RCB FPGA register.

  • When pressed for more than 5 seconds but fewer than 10 seconds, the RCB reboots and the reset-reason logs the button press event.

  • When pressed for more than 10 seconds, the RCB reboots with an option for BIOS recovery.

• LEDs—Provide status of the Routing Engine.

• Online/Offline Button—When the RCB is online, and if the button is pressed for more than 4 seconds, the RCB goes offline. When the RCB is offline, and if the button is pressed more than 4 seconds, the RCB starts booting.

Routing and Control Board Status Panel LEDs

Table 1 describes the LEDs on the RCB status panel.

SATA SSD LEDs

The Serial Advanced Technology Attachment (SATA) solid-state drive (SSD) LEDs indicate the status of the secondary drive.

Table 2 describes the LEDs for the secondary SATA drives.

Clock LEDs

The clock LEDs indicate whether clocking is active.

Table 3 describes the clock LEDs.

MX10004 Management Port LEDs

The two management ports on the RCB of an MX10004 router have LEDs that indicate link status and link activity. These two ports, located on the RCB panel between the clocking connections and the USB port, are both labeled MGMT. The left management port (RJ-45) is for 10/100/1000 BASE-T connections, and the right port (SFP) is for 10/100/1000 BASE-T and small form-factor pluggable (SFP) 1000 BASE-X connections (see Figure 4). The copper (RJ-45) port has separate LEDs for status and activity. The fiber (SFP) port has a combination link and activity LED.

Figure 4: Management Port LEDs on an MX10004

1 — Status LED (RJ-45)	3 — Link/activity/status LED (SFP)
2 — Activity LED (RJ-45)

Table 4 describes the RJ-45 management port and SFP LEDs.

Table 5 describes the SFP management port LEDs.