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7 Network
This chapter mainly includes the following parts:
VLAN
Cellular
LoopBack
DHCP
DNS
DDNS
7.1 VLAN
VLAN introduction
Virtual Local Area Network, Virtual LAN or VLAN is a concept of portioning a physical network,
so that distinct broadcast domains are created. This is usually achieved at switch or router level.
VLAN Frame Type
Tagged Frame: Carrying the VLAN tag . TPID is 0x8100, the VID of TCI is 0;
Priority Tagged Frame: TPID is 0x8100, the VID of TCI is 0;
Untagged Frame: The frame except Tagged frame and priority tagged
VLAN Member Type
Tagged Member，When the VLAN frame is sent from a member port, will bring the VLAN
label, that is sending the Tagged frame.
Untagged Member, When the VLAN frame is sent form a member port, won’t bring the VLAN
label, that is sending the untagged frame.
7.1.1 VLAN Trunk
Page Wizard: Network VLANVLAN Trunk
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