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參數(shù)資料
| 型號(hào)： | MVTX2802 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | Managed 4-Port 1000 Mbps Ethernet Switch |
| 中文描述： | 管理4端口1000 Mbps以太網(wǎng)交換機(jī) |
| 文件頁(yè)數(shù)： | 32/154頁(yè) |
| 文件大?。?/td> | 1936K |
| 代理商： | MVTX2802 |
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MVTX2802
Data Sheet
32
Zarlink Semiconductor Inc.
7.10 Mapping to IETF Diffserv Classes
The mapping between priority classes discussed in this chapter and elsewhere is shown below.
As the table illustrates, P7 is used solely for network management (NM) frames. P6 is used for expedited
forwarding service (EF). Classes P2 through P5 correspond to an assured forwarding (AF) group of size 4. Finally,
P0 and P1 are two best effort (BE) classes.
Features of the MVTX2802AG that correspond to the requirements of their associated IETF classes are
summarized in the table below.
8.0 Port Trunking
8.1 Features and Restrictions
A port group (i.e. trunk) can include up to 4 physical ports, but all of the ports in a group must be in the same
MVTX2802AG.
In managed mode, there are four trunk groups total.
In unmanaged mode, the MVTX2802AG provides several pre-assigned trunk group options, containing as many
as 4 ports per group, or alternatively, as many as 4 total groups.
Load distribution among the ports in a trunk for unicast is performed using hashing based on source MAC
address and destination MAC address. The other options include source MAC address only, destination MAC
address only. Load distribution for multicast is performed similarly.
MVTX2802AG
P7
P6
P5
P4
P3
P2
P1
P0
IETF
NM
EF
AF0
AF1
AF2
AF3
BE0
BE1
Table 4 - Mapping between MVTX2802AG and IETF Diffserv Classes for Gigabit Ports
Network management (NM) and
Expedited forwarding (EF)
Global buffer reservation for NM and EF
Shaper for EF traffic
Option of strict priority scheduling
No dropping if admission controlled
Assured forwarding (AF)
Four AF classes
Programmable bandwidth partition, with option of WFQ service
Option of delay-bounded service keeps delay under fixed levels
even if not admission-controlled
Random early discard, with programmable levels
Global buffer reservation for each AF class
Best effort (BE)
Two BE classes
Service only when other queues are idle means that QoS not
adversely affected
Random early discard, with programmable levels
Traffic from flow control enabled ports automatically classified as
BE
Table 5 - MVTX2802AG Features Enabling IETF Diffserv Standards
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MVTX2802AG | Managed 4-Port 1000 Mbps Ethernet Switch |
| MVTX2803 | Unmanaged 8-Port 1000 Mbps Ethernet Switch |
| MVTX2803AG | Unmanaged 8-Port 1000 Mbps Ethernet Switch |
| MVTX2804 | 8-Port 1000 Mbps Ethernet Distributed Switch |
| MVTX2804AG | 8-Port 1000 Mbps Ethernet Distributed Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MVTX2802A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Managed 4 port Gigabit Ethernet switch |
| MVTX2802AG | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Managed 4-Port 1000 Mbps Ethernet Switch |
| MVTX2803 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Unmanaged 8-Port 1000 Mbps Ethernet Switch |
| MVTX2803A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Unmanaged 8 port Gigabit Ethernet switch |
| MVTX2803AG | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Unmanaged 8-Port 1000 Mbps Ethernet Switch |
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