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AT-IFS802SP/POE(W)-80 User Manual
Hybrid Link: A segment which consists of Access and Trunk links. The hybrid port has 
both the features of access and trunk ports. A hybrid port has a PVID belonging to a 
particular VLAN,  and  it  also  forwards  the  specified  tagged-frames  for  the  purpose  of
VLAN communication across switches.
>
[note]
1. It’s not necessary to type ‘1’ in the tagged VID. The hybrid port will forward the
frames of VLAN 1.
2.  The trunk port has to be connected to a trunk/hybrid port of the other switch. 
Both the tagged VID of the two ports have to be the same.
Untagged VID
: This  column  field  is  available  when  Link Type  is  set  as Access  Link  and
Hybrid Link. Assign a number in the range between 1 an 4094.
Tagged VID
: This column field is available when Link Type is set as Trunk Link and Hybrid
Link. Assign a number in the range between 1 an 4094.
Click to have the configuration take effect.
You can see the link type, untagged VID, and tagged VID information of each port in the table
below on the screen.
Apply
802.1Q VLAN interface
Group Configuration
Edit the existing VLAN Group.
> Select the VLAN group in the table list.
> Click            .
Edit