I managed to tag the vlan from a core switch to an access1 which is HP 2920 48PORT but now I want to uplink the 48 port with a 24port v1910 but it cannot how can I dothis please help

2 Spice ups

If you want to pass traffic from multiple vlans between two switches, you need to configure a trunk port.

send all the appropriate vlans including and specified a vlan for any untagged traffic. And do the accordingly on the other switch.

Vola!

Oh yeah, and test the setup. Then

Vola!

1 Spice up

Correct - you have to tag the uplink port to all the VLANs you want to use it.

1 Spice up

If you want the switches to transfer traffic for more than one VLAN on the same uplink, then you would configure it as a trunk port and indicate which VLANs it is going to carry traffic for.

If you’re using a higher-end switch, you may only need to configure the trunk on one end and then it dynamically configures it for you on the other end, but it’s recommended to do the manual configuration on both ends.

Good luck.