參數(shù)資料
型號： MVTX2803AG
廠商： ZARLINK SEMICONDUCTOR INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： Unmanaged 8-Port 1000 Mbps Ethernet Switch
中文描述： DATACOM, LAN SWITCHING CIRCUIT, PBGA596
封裝： 40 X 40 MM, 2.33 MM HEIGHT, MS-034, HSBGA-596
文件頁數(shù)： 20/127頁
文件大小： 1706K
代理商： MVTX2803AG
MVTX2803
Data Sheet
20
Zarlink Semiconductor Inc.
It is possible that a class of traffic may attempt to monopolize system resources by sending data at a rate in
excess of the contractually assured bandwidth for that class. A well-behaved class offers traffic at a rate no
greater than the agreed-upon rate. By contrast, a misbehaving class offers traffic that exceeds the agreed rate.
A misbehaving class is formed from an aggregation of misbehaving microflows. To achieve high link utilization,
a misbehaving class is allowed to use any idle bandwidth. However, the quality of service (QoS) received by
well-behaved classes must never suffer.
As Table 1 illustrates, each traffic class may have its own distinct properties and applications. As shown,
classes may receive bandwidth assurances or latency bounds. In the example, P7, the highest transmission
class, requires that all frames be transmitted within 0.2 ms, and receives 30% of the 1 Gbps of bandwidth at that
port.
Best-effort (P1-P0) traffic forms a lower tier of service that only receives bandwidth when none of the other
classes have any traffic to offer.
In addition, each transmission class has two subclasses, high-drop and low-drop. Well-behaved users should
not lose packets. But poorly behaved users – users who send data at too high a rate – will encounter frame
loss, and the first to be discarded will be high-drop. Of course, if this is insufficient to resolve the congestion,
eventually some low-drop frames are dropped as well.
Table 1 shows that different types of applications may be placed in different boxes in the traffic table. For
example, web search may fit into the category of high-loss, high-latency-tolerant traffic, whereas VoIP fits into
the category of low-loss, low-latency traffic.
Highest transmission
priorities, P6
Latency < 200
μ
s
200 Mbps
Sample applications:
phone
calls; circuit emulation
Sample application:
training
video; other multimedia
Middle transmission
priorities, P5
Latency < 400
μ
s
125 Mbps
Sample application:
interactive activities
Sample application:
non-critical interactive
activities
Middle transmission
priorities, P4
Latency < 800
μ
s
250 Mbps
Sample application:
web
business
Low transmission
priorities, P3
Latency < 1600
μ
s
80 Mbps
Sample application:
file
backups
Low transmission
priorities, P2
Latency < 3200
μ
s
45 Mbps
Sample application:
email
Sample application:
web
research
Best effort, P1-P0
–
Sample application:
casual web browsing
TOTAL
1 Gbps
Class
Example
Assured Bandwidth
(user defined)
Low Drop Subclass
(If class is oversubscribed,
these packets are the last to
be dropped)
High Drop Subclass
(If class is oversubscribed,
these packets are the first
to be dropped)
Table 1 - Two-dimensional World Traffic (continued)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MVTX2803AG2 制造商:Microsemi Corporation 功能描述:
MVTX2804 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:8-Port 1000 Mbps Ethernet Distributed Switch
MVTX2804AG 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:8-Port 1000 Mbps Ethernet Distributed Switch
MVTX2804AG2 制造商:Microsemi Corporation 功能描述:
MVU10-10FBK 功能描述:端子 D-10-1103K BS-33-10-P 85299 RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點電鍍:Tin over Nickel 觸點材料:Beryllium Copper, Phosphor Bronze 端接類型:Crimp
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