The Routing Engine supports the following functionalities to manage the operation of the router:
•
System control functions such as environmental monitoring
•
Routing Layer 2 and Layer 3 protocols
•
Communication to components such as line cards, power supply, and cooling system
•
Transparent clocking
•
Alarm and logging functions
Routing Engine Components
The Routing Engine consists of the following internal components:
•
High-performance 1.6-GHz Intel 8 Core X86 CPU
•
32-GB DDR4 RAM
•
100-GB SATA SSD
Routing Engine Front Panel
Figure 16 on page 47 shows the front panel of the MX204 chassis.
Figure 16: MX204 Ports
g009897
15
8
1016
732 4 6
9
1 5
1314 1112
9—1— RESET buttonRate-selectable ports
10—2— SSD0 LEDManagement (MGMT) port
11—3— Alarm (ALM) LEDBITS port with LEDs
12—4— OK/FAIL LEDUSB port
13—5— Time of day (ToD) port with LEDs (This port is
reserved for future use)
1PPS and 10MHz GPS input and output ports
14—6— Console (CON) portONLINE LED
15—7— 10-Gigabit Ethernet SFP+ portsSSD1 LED
16—8— PTP grandmaster clock (GM/PTP) portOFFLINE button
47