- 您現(xiàn)在的位置：買賣IC網 > PDF目錄359243 > MVTX2802AG (ZARLINK SEMICONDUCTOR INC) Managed 4-Port 1000 Mbps Ethernet Switch PDF資料下載
參數(shù)資料
| 型號： | MVTX2802AG |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 網絡接口 |
| 英文描述： | Managed 4-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)： | 33/154頁 |
| 文件大?。?/td> | 1936K |
| 代理商： | MVTX2802AG |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁當前第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁
MVTX2802
Data Sheet
33
Zarlink Semiconductor Inc.
If a VLAN includes any of the ports in a trunk group, all the ports in that trunk group should be in the same VLAN
member map.
The MVTX2802AG also provides a safe fail-over mode for port trunking automatically. If one of the ports in the
trunking group goes down, the MVTX2802AG will automatically redistribute the traffic over to the remaining
ports in the trunk in unmanaged mode. In managed mode, the software can perform similar tasks.
8.2 Unicast Packet Forwarding
The search engine finds the destination MCT entry, and if the status field says that the destination address
found belongs to a trunk, then the group number is retrieved instead of the port number. In addition, if the
source address belongs to a trunk, then the source port’s trunk membership register is checked to determine if
the address has moved.
A hash key is used to determine the appropriate forwarding port, based on some combination of the source and
destination MAC addresses for the current packet.
The search engine retrieves the VLAN member ports from the VLAN index table, which consists of 4K entries.
The search engine retrieves the VLAN member ports from the ingress port’s VLAN map. Based on the
destination MAC address, the search engine determines the egress port from the MCT database. If the egress
port is member of a trunk group, the packet will be forward to only one port of the trunk group. The VLAN map is
used to check whether the egress port is a member of the VLAN, based on the ingress port. If it is a member,
the packet is forwarded otherwise it is discarded.
8.3 Multicast Packet Forwarding
For multicast packet forwarding, the device must determine the proper set of ports from which to transmit the
packet based on the VLAN index and hash key.
Two functions are required in order to distribute multicast packets to the appropriate destination ports in a port
trunking environment.
Determining one forwarding port per group.
For multicast packets, all but one port per group, the forwarding port, must be excluded.
8.4 Preventing Multicast Packets from Looping Back to the Source Trunk
The search engine needs to prevent a multicast packet from sending to a port that is in the same trunk group
with the source port. This is because, when we select the primary forwarding port for each group, we do not
take the source port into account. To prevent this, we simply apply one additional filter, so as to block that
forwarding port for this multicast packet.
9.0 LED Interface
9.1 Introduction
The MVTX2802AG LED block provides two interfaces: a serial output channel, and a parallel time-division
interface. The serial output channel provides port status information from the MVTX2802AG chip in a
continuous serial stream. This means that a low cost external device must be used to decode the serial data
and to drive an LED array for display.
By contrast, the parallel time-division interface supports a glueless LED module. Indeed, the parallel interface
can directly drive low-current LEDs without any extra logic. The pin LED_PM is used to select serial or parallel
mode.
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| MVV200 | Analog IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。