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The E320 and the E120 share a system architecture and common
components:
•
Switch route processors (SRPs) perform system management,
routing table calculations maintenance, forwarding table
computations, and other control plane functions.
•
Switch fabric modules (SFMs) create a distributed shared
memory switching fabric.
E320
Front View
A
B
C
E320 and E120 BSrapplications - With industry leading scale andflexibility, the Juniper networks BSrportfolio underpins video, voice, and
2
Back View
D
E
E320 BSr and E120 BSr components (a: SrP, B: lM, c: SfM, d: i/O adapter, E: power)
VPN
Services
Interactive
Fixed/Mobile
Multimedia
Convergence
IP
Voice
E120
xDSL
WiFi/WiMAX/3G
data service delivery, to both residential and business broadband customers.
•
Line modules (LMs) are frame processing and forwarding
engines for I/O modules.
•
Power modules distribute redundant power feeds through the
system to all components.
•
I/O adapter modules provide the physical connection to the
network via 10-Gigabit Ethernet, Ethernet, Asynchronous
Transfer Mode (ATM), and Packet over SONET (POS) interfaces.
The placement of these system components are as shown.
E120
Front View
A
C
B
IP/MPLS Core
Network
Broadband
Business
Service Edge
Services
Internet
Access
Multiplay
Services
E320
Leased Line
(IP or L2)
Back View
E
D
Gaming
Services
Video
Services
PON
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