rapid-pvst and VLAN 1 question

Hi all,

I have a situation where at one site we have a port on a student wifi provider's switch that connect to our switch. This was done so the salto door locks we have around the student accomodation blocks can talk to the SALTO server that is hosted on our VMware infrastructure. The SALTO server have dual NIC's with one NIC on our network and another one on the student wifi provider's network.

I do not have a router or firewall currently at site that can help me.

My own switches run rapid-pvst.

This is my port config:
interface ethernet1/1/4
no shutdown
switchport access vlan 101
mtu 1532
flowcontrol receive off

SW-2-1(conf-if-eth1/1/4)#

If i show STP config i get this:

SW-2-1# show spanning-tree

Spanning tree enabled protocol rapid-pvst with force-version rstp

VLAN 1

Executing IEEE compatible Spanning Tree Protocol

Root ID Priority 4096, Address d4c1.9e0a.6dc0

Root Bridge hello time 2, max age 20, forward delay 15

Bridge ID Priority 32769, Address 684f.64c3.b3d5

....

VLAN 101

Executing IEEE compatible Spanning Tree Protocol

Root ID Priority 4096, Address d4c1.9e0a.6dc0

Root Bridge hello time 2, max age 20, forward delay 15

Bridge ID Priority 32869, Address 684f.64c3.b3d5

Configured hello time 2, max age 20, forward delay 15

Flush Interval 200 centi-sec, Flush Invocations 4762

Flush Indication threshold 5

​

My actual question

I am aware that vlan 1 is often the default, but in cases like mine, I do not want the student wifi providers switch to be the root bridge for VLAN1. I am happy for it to be root bridge for VLAN 101 which is their VLAN and their subnet range we hook in to.

What should I do about VLAN 1?