Profinet not working with VLAN's

[Alex Peters]

Hi,

     I have recently installed a cisco IE3000 switch for use with profinet in an industrial environment, The switch has 1 trunk port to a cisco 2960G, this link is working ok. I have set the default VLAN to 850 and have set all ports except for the trunk port to switchport mode access, and set switchport access vlan 850.

The profinet was left at default and the the profinet is now not working.

Setting all ports back to VLAN1 has got the profinet working but now the end devices cannot access the wider network. I was wondering if setting all ports to trunks would allow the profinet network to work and allow the end devices to see the wider network and the other VLAN's.

I have not had a problem anywhere else except on the switch where the profinet is enabled.

Any help much appreciated

[Jon Marshall]

Alex

Not familiar with Profinet but when you say it was left as default, do you mean left in vlan 1 ?

What vlan are the devices connected to the 2960G in ?

If the Profinet was left in vlan 1 and the rest put into vlan 850 where is the inter vlan routing done ie. you need a device to route between vlans ie. they will not be able to communicate with each other without a L3 capable device.

Jon