BR-VDX6740 - vlan: traffic between access and trunk ports.

[Pawel_Eljasz]

hi guys,

with a client vlan "unaware" and port channel as this one:

Interface name : Port-channel 25
Switchport mode : trunk
Fcoeport enabled : no
Ingress filter : enable
Acceptable frame types : vlan-tagged only
Native Vlan : 4
Active Vlans : 2,4,1310
Inactive Vlans : -
MAC learn disable Vlans : -

and another port channel like:

Interface name : Port-channel 29
Switchport mode : access
Fcoeport enabled : no
Ingress filter : enable
Acceptable frame types : vlan-untagged only
Default Vlan : 4
Active Vlans : 4
Inactive Vlans : -
MAC learn disable Vlans : -

Is "Acceptable frame types" the reason why nodes cannot talk to each other?
How to rectify this problem?

many thanks, L.

[Ronald_Dvorak]

https://gtacknowledge.extremenetworks.com/articles/Q_A/How-can-I-change-global-native-VLAN-using-NOS...

[Pawel_Eljasz]

Yes,
no switchport trunk tag native-vlan - I though should do (and it seems it does) but weird bit is that this does not change the output of: sh int switch - "Acceptable frame types : vlan-tagged only" remains but!! nodes can ping between.
Weird, no? (I have not tested trunks yet)

[Sargis_Minasyan]

Hi Pawel,

If the host on Po25 is sending packets untagged then I believe the expected behaviour is to drop the packets. You could try making native VLAN untagged on Po25.

Many thanks,
Sargis