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參數(shù)資料
| 型號： | MVTX2602 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | Managed 24 Port 10/100 Mbps Ethernet Switch |
| 中文描述： | 管理的24端口10/100 Mbps以太網(wǎng)交換機 |
| 文件頁數(shù)： | 39/147頁 |
| 文件大?。?/td> | 924K |
| 代理商： | MVTX2602 |
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MVTX2602
Data Sheet
39
Zarlink Semiconductor Inc.
Features of the MVTX2602 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.
There are two trunk groups.
Load distribution among the ports in a trunk for unicast is performed using hashing based on source MAC address
and destination MAC address. Three other options include source MAC address only, destination MAC address
only and source port (in bidirectional ring mode only). Load distribution for multicast is performed similarly.
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 MVTX2602 also provides a safe fail-over mode for port trunking automatically. If one of the ports in the trunking
group goes down the MVTX2602 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 port 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.
A hash key, based on some combination of the source and destination MAC addresses for the current packet,
selects the appropriate forwarding port, as specified in the Trunk_Hash registers.
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.
Network management
(NM) and
Expedited forwarding
(EF)
Global buffer reservation for NM and EF
Option of strict priority scheduling
No dropping if admission controlled
Assured forwarding
(AF)
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)
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 9 - MVTX2602 Features Enabling IETF Diffserv Standards
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MVTX2602AG | Managed 24 Port 10/100 Mbps Ethernet Switch |
| MVTX2603 | Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch |
| MVTX2603AG | Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MVTX2602A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MVTX260x Port Mirroring |
| MVTX2602AG | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Managed 24 Port 10/100 Mbps Ethernet Switch |
| MVTX2602AG2 | 制造商:Microsemi Corporation 功能描述: |
| MVTX2603 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb Ethernet Switch |
| MVTX2603A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Unmanaged 24 port 10/100Mb + 2 port 1Gb Ethernet switch |
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