Related
Documentation
M7i Component Redundancy on page 4•
• M7i Chassis Description on page 11
• M7i Router Physical Specifications on page 74
• Overview of M7i Router Installation on page 103
M7i Component Redundancy
The router can be configured with two load-sharing, fully redundant power supplies to
distribute power to the other components. If one power supply fails, the second power
supply can provide full power to the router's components indefinitely.
Related
Documentation
M7i Router Description on page 3•
• M7i Chassis Description on page 11
• Overview of M7i Router Installation on page 103
• M7i Router Physical Specifications on page 74
System Architecture Overview
The router architecture consists of two major components:
•
Packet Forwarding Engine—Performs Layer 2 and Layer 3 packet switching, route
lookups, and packet forwarding.
•
Routing Engine—Provides Layer 3 routing services and network management.
The Packet Forwarding Engine and the Routing Engine perform independently but
communicate constantly through a 100-Mbps internal link. This arrangement provides
streamlined forwarding and routing control and the ability to run Internet-scale networks
at high speeds. Figure 1 on page 4 illustrates the relationship between the Packet
Forwarding Engine and the Routing Engine.
Figure 1: System Architecture
Related
Documentation
M7i Chassis Description on page 11•
• M7i Midplane Description on page 12
• M7i Power System Description on page 59
Copyright © 2019, Juniper Networks, Inc.4
M7i Multiservice Edge Router Hardware Guide
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