Per Vlan Spanning Tree when access switches have different VLAN ID Hardware and Software Networking by Sphinx'LostNose … ports, but they are configured for different VLANs, how does PVST deal with it? [Switch 1] Port 1 Access Mode VLAN… what will happen with spanning tree since I am running PVST. Note: I am not wanting to use this situation … VLAN Segmentation with Wireless Devices Hardware and Software Networking by Ancy … 5 $1$K1QW$s3Y8bSLDsU1YgfnpidgU9/ ! ip subnet-zero ! ! spanning-tree mode pvst spanning-tree extend system-id ! ! ! ! ! interface FastEthernet0/1 switchport trunk… Re: I need help on urgent basis Hardware and Software Networking by jackorj … in a switch or cable failure) you can do some PVST (per Vlan spanning tree) configuration which will allow the Voice… Re: Per Vlan Spanning Tree when access switches have different VLAN ID Hardware and Software Networking by CimmerianX Nothing will happen. Since you have only 1 connection between the 2 switches. There's no danger of any loop that I can see from the short summary, Re: VLAN Segmentation with Wireless Devices Hardware and Software Networking by w1r3sp33d Ancy, at first glance it looks good. Can you add a "show vlan" from the switch?