Juniper-networks MX480 Manual de usuario Pagina 53

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Replacing an MX480 SCB on page 174
MX480 Enhanced Switch Control Board Description
The Enhanced MX Switch Control Board (MX SCBE) serves the carrier Ethernet services
router and carrier Ethernet transport markets that require higher-capacity traffic support
demanding greater interface density (slot and capacity scale), as well as improved
services. The upgraded SCB is supported on MX960, MX480, and MX240 routers. Some
key attributes of the Enhanced MX SCB are:
160 Gbps/slot bandwidth with redundant fabric support, and improved fabric
performance by using the next-generation fabric (XF) chip
A central clocking module and a centralized clocking architecture that supports clock
cleanup and distribution. The Stratum 3 clock module performs clock monitoring,
filtering, and holdover in a centralized chassis location
Full performance with fabric redundancy for higher capacity line cards such as 16x10GE
and MPC3
The Routing Engine installs directly into a slot on the MX SCBE (see Figure 15 on page 29).
Figure 15: MX SCBE
g006589
SCBE-MX
29Copyright © 2013, Juniper Networks, Inc.
Chapter 2: MX480 Hardware Components
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