Juniper Networks Broadband Services Router. E320 - Manual (Page 2)

2
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.
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 Back View
A E
D
B
C
E320 Front View Back View
B
A
C
D
E
E320 BSr and E120 BSr components (a: SrP, B: lM, c: SfM, d: i/O adapter, E: power)
Broadband
Service Edge
Multiplay
Services
VPN
Services
IP
Voice
Interactive
Multimedia
Gaming
Services
Fixed/Mobile
Convergence
Video
Services
Internet
Access
E120
E320
Business
Services
PON
xDSL
WiFi/WiMAX/3G
Leased Line
(IP or L2)
IP/MPLS Core
Network
E320 and E120 BSrapplications - With industry leading scale andflexibility, the Juniper networks BSrportfolio underpins video, voice, and
data service delivery, to both residential and business broadband customers.