Juniper CBL-M40-PWR-AU ユーザーズマニュアル
System Architecture Overview
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Chapter 4
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 11 illustrates the relationship between the Packet Forwarding Engine and
the Routing Engine.
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 11 illustrates the relationship between the Packet Forwarding Engine and
the Routing Engine.
Figure 11: System Architecture
For a discussion of the architectural components, see the following sections:
Packet Forwarding
Engine
Routing Engine
1244
Packets
in
Packets
out
100-Mbps link