Juniper CBL-TX-SIB-95M 데이터 시트

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Architecture and Key Components
Juniper Networks T Series routers support the features that 
service providers need to handle today’s massive growth in 
core bandwidth requirements. These features include MPLS 
Differentiated Services (DiffServ-TE), point-to-multipoint label-
switched paths (P2MP LSPs), nonstop routing, unified in-service 
software upgrades (unified ISSUs), hierarchical MPLS, and service 
delivery with the Juniper Networks JCS1200
1
 Control System and 
the Juniper Networks Junos
®
 SDK. 
T Series routers enable service providers to deliver stringent 
quality of service (QoS) and meet SLAs for multiservice transit 
and IP services. In addition, Juniper’s industry-leading IP/MPLS 
capabilities guarantee that the service level and performance 
of critical services are maintained while extending the effective 
lifespan of legacy network assets. The T Series is ideal for creating 
network infrastructures that must scale to meet constantly 
growing Internet traffic for all types of applications. Furthermore, 
capacity-based power consumption for all T Series routers is the 
lowest in the industry. Table 1 illustrates the scaling characteristics 
of the T Series single chassis routers. 
T640 Routing Platform  
At 19 inches wide and a half rack in height, Juniper Networks 
T640 Core Routers address the need for highly scalable, high-
performance core routing at a fraction of the size of competitive 
offerings. Each of the eight slots in the T640 delivers 40 Gbps 
with the ability to scale well beyond that capacity, fulfilling the 
need for the high bandwidth services of today and tomorrow. 
The T640 supports up to 8 OC-768c/STM-256 ports, 40 10 Gbps 
ports (10GbE or OC-192/STM-64), 128 OC-48c/STM-16 ports, and 
an industry-leading 320 1GbE ports. It delivers up to 640 Gbps of 
capacity with the ability to forward up to 770 million packets per 
second (Mpps). The T640 also supports lower speed interfaces, 
providing added flexibility to combine high-speed core routing 
with dedicated access aggregation in a single platform.
T1600 Routing Platform 
Also at 19 inches wide and a half rack in height, the multichassis 
capable Juniper Networks T1600 Core Routers address the need 
for highly scalable, high-performance core routing at a fraction 
of the size of competitive offerings. The T1600 delivers up to 1.6 
Tbps of capacity (100 Gbps/slot) with the ability to forward up to 
1.92 billion pps. 
Juniper provides unique capabilities for upgrading T Series routers 
to accommodate the changing requirements of service providers. 
For example, the T640 can grow in-service into a T1600 by only 
replacing the power module and switch fabric. Following such an 
upgrade, the T1600 provides more than double the capacity of 
T640, while only using fractionally more power.
The packet forwarding and switching complex of a T1600 
supports 100 Gbps per slot. Current interface configurations 
include up to 8 100GbE ports, 16 OC-768c/STM-256 ports, 64 OC-
192/STM-64 ports, or 80/160 10GbE (line rate/oversubscribed). 
The T1600 also supports lower speed interfaces, providing added 
flexibility to combine high-speed core routing with dedicated 
access aggregation in a single platform. 
 
T4000 Routing Platform 
Juniper Networks T4000 Core Routers are the highest capacity 
half rack routers in the T Series family, extending Juniper’s proven 
history of innovation and investment protection. The T4000 
system more than doubles the per-slot capacity of existing T1600 
systems from 100 to 260 Gbps—and with only 25% increase 
in power. Existing T640 and T1600 systems can be upgraded 
in-service to a T4000 system, offering ultimate investment 
protection for a T Series installed base. 
A fully loaded T4000 system can support up to 208 ports of 
10GbE, or 16 ports of 100GbE interfaces, making it the densest 
line-rate IP/MPLS routing system. With a pay-as-you-grow model, 
service providers can migrate in-service and scale a single T4000 
from 4 Tbps chassis to a multichassis configuration with the 
TX Matrix Plus to support up to 16 Tbps
2
. The T4000 is a true 
multiservice core system that is designed to deliver a reliable, 
high-performance, and flexible architecture to carry a wide 
breadth of services over a common IP/MPLS infrastructure. 
T Series routers enable service providers to deliver stringent QoS 
and meet SLAs for multiservice transit and IP services. In addition, 
Juniper’s industry-leading IP/MPLS capabilities guarantee that the 
service level and performance of critical services are maintained, 
while extending the effective life span of legacy network assets. 
The T Series is ideal for creating routed infrastructures that must 
scale to meet constantly growing Internet traffic for all kinds of 
applications. Furthermore, capacity-based power consumption for 
all T Series routers is the lowest in the industry.
 
Table 1: Juniper Networks T Series Single Chassis Scaling Characteristics
Platform
Throughput
Rack Space
10-Gigabit Ethernet
Density 
Fully Redundant 
Hardware
Multichassis 
Capable 
T640
640 Gbps
1/2 rack 
(19 in)
40
Yes
Yes
T1600
1.6 Tbps
1/2 rack 
(19 in)
80 (line rate)
160 (oversubscribed)
Yes
Yes
T4000
4 Tbps
1/2 rack 
(19 in)
208 (line rate)
384 (oversubscribed)
Yes
Yes
1
  For more details, please refer to the JCS1200 datasheet at www.juniper.net/us/en/local/pdf/datasheets/1000218-en.pdf.
Refer to Juniper technical documentation for details about upgrading from a T4000 single chassis system to a multichassis system with the TX Matrix Plus.