参数资料
型号: IP178C-DS-R02
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: 37/93页
文件大小: 538K
代理商: IP178C-DS-R02
IP178C/IP178C LF/IP178CH/IP178CH LF
Datasheet
2.7
Copyright
2004, IC Plus Corp.
37/93
June 21, 2007
IP178Cx-DS-R12
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/IP178CH
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/IP178CH
forwards a
packet from MII to the appropriate port according to the MAC address and VLAN tag.
IP178C/IP178CH
removes the VLAN tag when it forwards the packet.
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