參數(shù)資料
型號: MVTX2604
廠商: Zarlink Semiconductor Inc.
英文描述: Managed 24-Port 10/100 Mb + 2 Port 1 Gb Ethernet Switch
中文描述: 管理24端口的10/100 Mb 2端口千兆以太網(wǎng)交換機(jī)1
文件頁數(shù): 41/173頁
文件大?。?/td> 2097K
代理商: MVTX2604
MVTX2604
Data Sheet
43
Zarlink Semiconductor Inc.
The MVTX2604 also provides the option of disabling VLAN multicast flow control.
Note:
If per-Port flow control is on, QoS performance will be affected.
7.11 Mapping to IETF Diffserv Classes
The mapping between priority classes discussed in this chapter and elsewhere is shown below.
Table 11 - Mapping between MVTX2604 and IETF Diffserv Classes for Gigabit Ports
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.
Table 12 - Mapping between MVTX2604 and IETF Diffserv Classes for 10/100 Ports
Features of the MVTX2604 that correspond to the requirements of their associated IETF classes are summarized in
the table below.
Table 13 - MVTX2604 Features Enabling IETF Diffserv Standards
VTX
P7
P6
P5
P4
P3
P2
P1
P0
IETF
NM
EF
AF0
AF1
AF2
AF3
BE0
BE1
VTX
P3
P2
P1
P0
IETF
NM+EF
AF0
AF1
BE0
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
MVTX2801A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Unmanaged 4 port Gigabit Ethernet switch
MVTX2801AG 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Unmanaged 4-Port 1000 Mbps Ethernet Switch