The Routing Engine constructs and maintains one or more routing tables (see Figure 21
on page 31). From the routing tables, the Routing Engine derives a table of active routes,
called the forwarding table, which is then copied into the Packet Forwarding Engine. The
design of the ASICs allow the forwarding table in the Packet Forwarding Engine to be
updated without interrupting forwarding performance.
Figure 21: Control Packet Handling for Routing and Forwarding Table
Updates
Related
Documentation
•
M7i Routing Engine Description on page 18
•
Maintaining the M7i Routing Engine on page 72
•
Replacing the M7i Routing Engine on page 97
31
Copyright © 2010, Juniper Networks, Inc.
Chapter 3: System Architecture Overview
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