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AR8327-AL1A-R 数据表(PDF) 42 Page - List of Unclassifed Manufacturers

部件名 AR8327-AL1A-R
功能描述  Seven-port Gigabit Ethernet Switch
PDF  394 Pages
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制造商  ETC2 [List of Unclassifed Manufacturers]
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标志 ETC2 - List of Unclassifed Manufacturers

AR8327-AL1A-R 数据表(HTML) 42 Page - List of Unclassifed Manufacturers

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42 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch
Atheros Communications, Inc.
42 • June 2011
COMPANY CONFIDENTIAL
In these application cases, the ports work as:
In application case 1, all LAN ports can directly send frames to each other but not to the WAN port.
The CPU can send frames to all ports. A LAN port must go through the CPU port to send frames to the
WAN port. Similarly, the WAN port must also go through the CPU to send frames to LAN ports,.
Normally a firewall application runs in the CPU, causing traffic between the LANs and WAN to go
through the host CPU. Figure 2-2 shows application case 1.
In application case 2, the WAN port is isolated from other ports, so the switch is a five-port switch with
an independent PHY. Figure 2-3 shows application case 2.
Port Number
Description
Port 0
CPU Port
Port 1
LAN A
Port 2
Port 3
LANB
Port 4
Port 5
WAN Port
Figure 2-2.
Application Case 1
Figure 2-3.
Application Case 2
Port
3
Port
4
Port
0
LAN A
LAN B
LAN B
CPU
Port
5
WAN
Port
1
LAN A
Port
2
Port
3
Port
4
Port
0
LAN A
LAN B
LAN B
CPU MAC 1
Port
5
WAN
Port
1
LAN A
Port
2
CPU
MAC 2



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