Routing And Control Board Functions; Routing And Control Board Components - Juniper MX10016 Hardware Manual

RCB while a redundnat configuration ships with two RCBs. When two RCBs are installed, one functions
as the master and the second as a backup. If the master RCB is removed, the backup becomes the master
if graceful Routing Engine switchover (GRES) is configured.
MX10016 supports the following Routing Engines:
JNP10K-RE1
JNP10K-RE1-LT
JNP10K-RE1-128G
Figure 33: Routing and Control Board
This topic covers:

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

Each Routing and Control Board (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.
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