参数资料
型号: IP178CH
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: 35/91页
文件大小: 1244K
代理商: IP178CH
IP178C
Preliminary Data Sheet
2.7
Copyright
2004, IC Plus Corp.
35/91
October 27, 2005
IP178C-DS-R09
Tag VLAN in router application
In a router application, MII port is defined as a tagged port and the other ports are defined as un-tagged
ports. IP178C inserts VLAN tag into packets according to its source port when it forwards the packets to
MII port. The pre-defined VLAN tag value is defined in register 30.3~11
.
CPU can identify the source port
of a packet from MII by examining the VLAN tag.
CPU inserts VLAN tag into packets when it sends packets to MII port. IP178C forwards a packet from MII
to the appropriate port according to the MAC address and VLAN tag. IP178C removes the VLAN tag
when it forwards the packet.
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