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kev445
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Posts: 12
Joined: Tue Mar 01, 2011 12:57 pm

Feature request: VLAN 0 Priority Tagging Support

Tue May 03, 2022 7:51 pm

The VLAN 0 Priority Tagging Support feature enables 802.1Q Ethernet frames to be transmitted with the VLAN ID tag set to zero.

Example use cases:
BT FTTP circuits
MOCA setups

Supported by Cisco, please do the same:
https://www.cisco.com/c/en/us/td/docs/i ... 011000.pdf
 
DeviceLocksmith
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Joined: Sat Jan 15, 2022 8:21 am

Re: Feature request: VLAN 0 Priority Tagging Support

Sat Jun 18, 2022 3:36 am

+1 to this request. Using 802.1p should not be that difficult. VID=0 is a perfectly legal value. Please implement at lease for 98DX32XX switches
 
mducharme
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Joined: Tue Jul 19, 2016 6:45 pm
Location: Vancouver, BC, Canada

Re: Feature request: VLAN 0 Priority Tagging Support

Sat Jun 18, 2022 5:17 am

This does work already, if you add the port to a single-port bridge as a workaround, and I believe you also have to enable VLAN filtering on the bridge. I agree that there should be an easier way to get this to work without having to jump through those hoops. With a modern Ubuntu system it automatically handles this and you don't have to do anything special.
 
DeviceLocksmith
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Joined: Sat Jan 15, 2022 8:21 am

Re: Feature request: VLAN 0 Priority Tagging Support

Thu Jun 23, 2022 11:55 pm

It does not work. Yes, you can receive 802.1p-tagged frames with the described workaround, but outbound frames are sent untagged, which breaks connectivity for devices that require 802.1p frame encapsulation to be present.

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