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aheadley/netgear-vlans.md

Last active March 9, 2017 19:44
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netgear-vlans.md

Source: http://www.downloads.netgear.com/files/GS748T_UM_30Oct07.pdf

Packets received by the switch ar e treated in the following way:

  • When an untagged packet enters a port, it is automatically tagged w ith the port’s default VLAN ID tag number. Each port has a default VL AN ID setting that is user-configurable (the default setting is 1). The defa ult VLAN ID setting for each port can be changed in the PVID Setting page.
  • When a tagged packet enters a port, the tag for that packet is unaffected by the default VLAN ID Setting. The packet proceed s to the VLAN specified by its VLAN ID (VID) tag number.
  • If the port in which the packet entered does not have membership with the VLAN specified by the VLAN ID tag, the packet is dropped.
  • If the port is a member of the VLAN specified by the packet’s VLAN ID, the packet is able to be sent to other ports with the same VLAN ID.
  • Packets leaving the switch are either tagged or untagged, depending on the setting for that port’s VLAN membership properties. A “U” for a given port means that packets leaving the switch from that port are Untagged. Inversely, a “T” for a given port means that packets leaving the switch from that port are tagged with the VLAN ID associated with the port.
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