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參數(shù)資料
| 型號(hào)： | PRS28G |
| 廠商： | IBM Microeletronics |
| 英文描述： | Packet Routing Switch For Multigigabit-Per-Port Switch Solution(網(wǎng)絡(luò)通信用信息包通路轉(zhuǎn)換開(kāi)關(guān)) |
| 中文描述： | 對(duì)于分組千兆路由交換機(jī)每端口交換解決方案（網(wǎng)絡(luò)通信用信息包通路轉(zhuǎn)換開(kāi)關(guān)） |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大?。?/td> | 111K |
| 代理商： | PRS28G |
Advanced technology for high-performance, reliable,
frame- and cell-based networking
Packet Routing Switch PRS28G
Highlights
A multigigabit-per-port switch
solution
The IBM Packet Routing Switch PRS28G
provides a powerful engine for high-
throughput switch applications. A
second-generation member of IBM’s
family of packet routing switch products,
it provides scalability to satisfy a wide
range of applications, including
Enterprise and WAN edge, access, and
backbone switches. With port speeds of
up to OC48, the IBM Packet Routing
Switch PRS28G is an ideal solution for
large frame or cell switching systems.
Manufacturers who use the Packet
Routing Switch PRS28G benefit from
IBM’s advanced silicon technology
and the proven reliability, redundancy
and load balancing features of IBM’s
packet routing switch technology. The
switch offers:
16 input ports and 16 output ports
28.4-Gbps aggregate chip throughput
(1.77-Gbps port speed)
28.4- to 2272-Gbps throughput, using
single stage expansion, and terabit
throughput using multistage expansion
Four levels of traffic priority
Built-in broadcast and multicast support
Packet loss-less switchover support
Load balancing
Virtual output queuing with Grant
method-based queue flow control
High throughput and non-
disruptive migration
The IBM Packet Routing Switch PRS28G
enables non-blocking, scalable switch
fabrics featuring 28.4-Gbps to 2272-Gbps
throughput. It provides variable-sized,
fast packet switching and is capable of
supporting frame- and cell-based traffic.
Further, it provides exceptional scalability,
permitting configuration growth in speed
per port, number of ports and aggregate
capacity. The resulting scalability
enables non-disruptive migration as
system requirements change.
The Packet Routing Switch PRS28G
incorporates two 888-Mbps per-port,
self-routing, sub-switch elements and a
control section that is common to both
elements. Its shared output buffer
provides sharing of memory space
among the chip’s ports, delivering
superior performance compared to
input-buffer-based and output-buffer-
based switches with identical memory
size. A Grant method-based flow control
feature allows the attached traffic
manager to perform virtual output
queuing. The chip also provides four
levels of traffic priority. Using this
capability, an application can, for
example, give precedence to real time
traffic, such as voice and video, over
best-effort data traffic.
Speed and port expansion
enable scalable designs
The IBM Packet Routing Switch PRS28G
supports two types of speed expansion
to provide performance and cost
flexibility. Manufacturers can use internal
speed expansion to double port speed
The IBM Packet Routing Switch PRS28G is a high-performance, scalable switch
solution for diverse applications.
Input
Controller
0
Input
Controller
16
Output
Controller
16
Output
Controller
0
Shared Memory
256 Rows
Slave
Shared Memory
256 Rows
Master
Address Manager
Output Queue 0
Output Queue 16
O
A
O
R
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