Port Vlan Trunking; Figure 25 Port Vlan Trunking; Table 15 Ieee 802.1Q Vlan Terminology - ZyXEL Communications MI-7248 User Manual

Please refer to the following table for common IEEE 802.1Q VLAN terminology.

Table 15 IEEE 802.1Q VLAN Terminology

VLAN PARAMETER TERM
VLAN Type
VLAN Administrative
Control
VLAN Tag Control
VLAN Port

13.4 Port VLAN Trunking

Enable VLAN Trunking on a port to allow frames belonging to unknown VLAN groups to
pass through that port. This is useful if you want to set up VLAN groups on end devices
without having to configure the same VLAN groups on intermediary devices.
Refer to the following figure. Suppose you want to create VLAN groups 1 and 2 (V1 and V2)
on devices A and B. Without VLAN Trunking, you must configure VLAN groups 1 and 2 on
all intermediary switches C, D and E; otherwise they will drop frames with unknown VLAN
group tags. However, with VLAN Trunking enabled on a port(s) in each intermediary switch
you only need to create VLAN groups in the end devices (A and B). C, D and E automatically
allow frames with VLAN group tags 1 and 2 (VLAN groups that are unknown to those
switches) to pass through their VLAN trunking port(s).

Figure 25 Port VLAN Trunking

MS-7206 User's Guide
DESCRIPTION
Permanent VLAN This is a static VLAN created manually.
Dynamic VLAN This is a VLAN configured by a GVRP registration/
deregistration process.
Registration Fixed Fixed registration ports are permanent VLAN members.
Registration Ports with registration forbidden are forbidden to join the
Forbidden specified VLAN.
Normal Registration Ports dynamically join a VLAN using GVRP.
Tagged Ports belonging to the specified VLAN tag all outgoing
frames transmitted.
Untagged Ports belonging to the specified VLAN don't tag all
outgoing frames transmitted.
Port VID This is the VLAN ID assigned to untagged frames that
this port received.
Acceptable Frame You may choose to accept both tagged and untagged
Type incoming frames, just tagged incoming frames or just
untagged incoming frames on a port.
Ingress filtering If set, the switch discards incoming frames for VLANs
that do not have this port as a member
Chapter 13 VLAN
85