Juniper Networks E120 Benutzerhandbuch
2
The E320 and the E120 share a system architecture and common
components:
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
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
Power modules distribute redundant power feeds through the
•
system to all components.
I/O adapter modules provide the physical connection to the
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.
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.