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| 型號(hào)： | GT-48208 |
| 廠商： | Galileo Technology Services, LLC |
| 英文描述： | Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高級(jí)交換式 10+10/100 BaseX以太網(wǎng)控制器) |
| 中文描述： | 先進(jìn)的交換式以太網(wǎng)控制器的10 10/100 BaseX（高級(jí)交換式10 10/100 BaseX以太網(wǎng)控制器） |
| 文件頁(yè)數(shù)： | 49/135頁(yè) |
| 文件大?。?/td> | 1619K |
| 代理商： | GT-48208 |
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GT-482xx Switched Ethernet Controllers for 10+10/100 BaseX
GALI
LEO
TECHNOLOGY
CONFI
D
ENTI
AL
--
DO
NOT
REPRODUCE
20
Revision 1.2
The Address Table includes information regarding target port, aging status, static/dynamic status, VLAN, and flags
to force processor intervention. The management CPU has the ability to insert, remove or modify the entries.
3.3
Packet Buffering
Incoming packets are buffered in the SDRAM array. These buffers provide elastic storage for transferring data
between low-speed and high-speed segments. The GT-482xx automatically manages packet buffers.
3.4
Packet Forwarding
Once an address has been learned and the packet is buffered, it must be forwarded. The packet forwarding mech-
anism for the GT-482xx is handled automatically based on the destination address. Optionally, the CPU can be
involved in Unicast packet forwarding decisions by using Intervention Mode
. For more information about Interven-
tion mode see Section 7.5 on page 35. If a CPU is utilized for system management functions, Multicast packets
are forwarded to the CPU for forwarding decisions.
3.5
Terminology
It is important to understand the basic terminology used to describe the Galaxy Family before getting into a
detailed description. Table 3 explains the terms used throughout this document.
Table 3:
Terminology
Te r m
D e finition
Address Table
The Address Table is a data structure in the GT-482xx’s DRAM that contains all
learned MAC addresses, and routing information associated with those addresses.
Source Address
The Source Address (SA) is the MAC address from which a received packet was
sent.
Destination Address
The Destination Address (DA) is the MAC address to which a received packet is
directed.
Port Number
Each Ethernet port on a GalNet device has an associated port number. The Gal-
Net device associates Port Numbers with the MAC addresses located on those
ports.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GT48212-A6-PBB1C000 | 制造商:Marvell 功能描述: |
| GT48212-A6-PBB-C000 | 制造商:Marvell 功能描述:12 PORT E + 2 PORT FE SWITCH (MANAGED) - Trays |
| GT48300-A1-BBE1C083 | 制造商:Marvell 功能描述:Marvell GT48300-A1-BBE1C083 |
| GT48300-A1-BBE-C000 | 制造商:Marvell 功能描述:Marvell GT48300-A1-BBE-C000 |
| GT48300-A1-BBE-C08 | 制造商:Marvell 功能描述:MVLGT48300-A1-BBE-C083 4 PORT 83MHZ G.LI |
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