參數(shù)資料
型號(hào)： MVTX2603AG
廠商： ZARLINK SEMICONDUCTOR INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch
中文描述： DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封裝： 37.50 X 37.50 MM, 2.33 MM HEIGHT, MS-034, HSBGA-553
文件頁(yè)數(shù)： 32/109頁(yè)
文件大?。?/td> 803K
代理商： MVTX2603AG
MVTX2603
Data Sheet
32
Zarlink Semiconductor Inc.
The MVTX2603 also provides the option of disabling VLAN multicast flow control.
Note
:
If per-Port flow control is on, QoS performance will be affected. To determine the most efficient way to
program, please refer to the QoS Application Note.
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.
For 10/100 Mbps ports, the classes of Table 12 are merged in pairs—one class corresponding to NM+EF, two AF
classes, and a single BE class.
Features of the MVTX2603 that correspond to the requirements of their associated IETF classes are summarized in
the table below.
VTX
P7
P6
P5
P4
P3
P2
P1
P0
IETF
NM
EF
AF0
AF1
AF2
AF3
BE0
BE1
Table 10 - Mapping between MVTX2603 and IETF Diffserv Classes for Gigabit Ports
VTX
P3
P2
P1
P0
IETF
NM+EF
AF0
AF1
BE0
Table 11 - Mapping between MVTX2603 and IETF Diffserv Classes for 10/100 Ports
Network management (NM) and
Expedited forwarding (EF)
Global buffer reservation for NM and EF
Shaper for EF traffic on 1 Gbps ports
Option of strict priority scheduling
No dropping if admission controlled
Assured forwarding (AF)
Four AF classes for 1 Gbps ports
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 for 1 Gbps ports
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 12 - MVTX2603 Features Enabling IETF Diffserv Standards
相關(guān)PDF資料
PDF描述
MVTX2604 Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
MVTX2604AG Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
MVTX2801 Unmanaged 4-Port 1000 Mbps Ethernet Switch
MVTX2801AG Unmanaged 4-Port 1000 Mbps Ethernet Switch
MVTX2802 Managed 4-Port 1000 Mbps Ethernet Switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MVTX2603AG2 制造商:Microsemi Corporation 功能描述:
MVTX2604 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
MVTX2604A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MVTX260x Physical Port Control
MVTX2604AG 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
MVTX2801 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Unmanaged 4-Port 1000 Mbps Ethernet Switch
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