参数资料
型号: IP178CHLF
厂商: Electronic Theatre Controls, Inc.
英文描述: 8 Port 10/100 Ethernet Integrated Switch
中文描述: 8端口10/100以太网集成开关
文件页数: 39/91页
文件大小: 1244K
代理商: IP178CHLF
IP178C
Preliminary Data Sheet
2. Packet from WAN to LAN
2.1. WAN port receives a packet with locked address PC3.
2.2. IP178C adds a PVID equal to 2 and forwards the packet to CPU.
2.3. CPU updates the DA, replaces PVID with 1 and sends it to IP178C.
2.4. IP178C learns the SA.
2.5. IP178C forwards the packet to port0 according to the DA.
PHY0
CPU
7 LAN ports (PVID=1)
MAC8
MAC0
PHY1
MAC1
PHY2
MAC2
PHY7
MAC7
DA
PC0
SA
CPU
PVID
1
DA
PC0
SA
CPU
PVID
none
(5)
(3)
DA
PC3
SA
WAN
PVID
2
(2)
(1)
DA
PC3
SA
WAN
PVID
none
1 WAN ports (PVID=2)
(4) Learning SA = CPU
locked SA=PC3
Copyright
2004, IC Plus Corp.
39/91
October 27, 2005
IP178C-DS-R09
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