Connecting a routed port to a trunk port

[Infrastructure Group]

Hi everybody,

a quick question: if i have a trunk port with different VLANs and I connect this port to a routed port with assigned IP on a subnet belonging to one of those VLANs, will this port come up straight away?

Thanks.

[jomar050485]

It will if the native vlan of the trunk is the correct vlan that the ip address is from.

[kapathak]

Hello,

So if I understand the problem right, the scenario should be something like this

       Trunkport                   L3port

Switch1--------------------------------Switch2

int vlanx                              10.10.10.2 255.255.255.0

10.10.10.1

255.255.255.0

- The trunkport on Switch1 which allows multiple vlans on it is connected to an L3port configured with an IP address in the same subnet as of vlan x

- Since dot1q tags frames, a device/port that doesnt 'understand' the tag won't be able to read the frame

- To make this work, we can either set the native vlan on the trunk to vlan x (so frames sent are untagged) OR we can set the port to an access port in vlan x

Hope this helps.

[Infrastructure Group]

Thanks guys.

This is what i expected!