D-Link DIS-300G-14PSW Product Manual - Page 166

Trunk, Hybrid, Port VLAN

Page 166 highlights

Port VLAN 166 Voice VLAN may add the port to more VLANs behind the scenes. Access ports have the following characteristics: • Member of exactly one VLAN, the Port VLAN (a.k.a. Access VLAN), which by default is 1 • Accepts untagged and C-tagged frames • Discards all frames that are not classified to the Access VLAN • On egress all frames classified to the Access VLAN are transmitted untagged. Other (dynamically added VLANs) are transmitted tagged Trunk: Trunk ports can carry traffic on multiple VLANs simultaneously, and are normally used to connect to other switches. Trunk ports have the following characteristics: • By default, a trunk port is member of all VLANs (1-4095) • The VLANs that a trunk port is member of may be limited by the use of Allowed VLANs • Frames classified to a VLAN that the port is not a member of are discarded • By default, all frames but frames classified to the Port VLAN (a.k.a. Native VLAN) get tagged on egress. Frames classified to the Port VLAN do not get C-tagged on egress • Egress tagging can be changed to tag all frames, in which case only tagged frames are accepted on ingress Hybrid: Hybrid ports resemble trunk ports in many ways, but adds additional port configuration features. In addition to the characteristics described for trunk ports, hybrid ports have these abilities: • Can be configured to be VLAN tag unaware, C-tag aware, S-tag aware, or S-custom-tag aware • Ingress filtering can be controlled • Ingress acceptance of frames and configuration of egress tagging can be configured independently Determines the port's VLAN ID (a.k.a. PVID). Allowed VLANs are in the range 1 through 4095, default being 1. On ingress, frames get classified to the Port VLAN if the port is configured as VLAN

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166
Voice VLAN may add the port to more VLANs behind the scenes. Access ports have
the following characteristics:
Member of exactly one VLAN, the Port VLAN (a.k.a. Access VLAN), which
by default is 1
Accepts untagged and C-tagged frames
Discards all frames that are not classified to the Access VLAN
On egress all frames classified to the Access VLAN are transmitted
untagged. Other (dynamically added VLANs) are transmitted tagged
Trunk:
Trunk ports can carry traffic on multiple VLANs simultaneously, and are
normally used to connect to other switches. Trunk ports have the following
characteristics:
By default, a trunk port is member of all VLANs (1-4095)
The VLANs that a trunk port is member of may be limited by the use of
Allowed VLANs
Frames classified to a VLAN that the port is not a member of are discarded
By default, all frames but frames classified to the Port VLAN (a.k.a. Native
VLAN) get tagged on egress. Frames classified to the Port VLAN do not get
C-tagged on egress
Egress tagging can be changed to tag all frames, in which case only tagged
frames are accepted on ingress
Hybrid:
Hybrid ports resemble trunk ports in many ways, but adds additional port
configuration features. In addition to the characteristics described for trunk ports,
hybrid ports have these abilities:
Can be configured to be VLAN tag unaware, C-tag aware, S-tag aware, or
S-custom-tag aware
Ingress filtering can be controlled
Ingress acceptance of frames and configuration of egress tagging can be
configured independently
Port VLAN
Determines the port's VLAN ID (a.k.a. PVID). Allowed VLANs are in the range 1
through 4095, default being 1.
On ingress, frames get classified to the Port VLAN if the port is configured as VLAN