STP required?

[Mikensan]

Curious if I've created a nasty loop... Since virtual switches are... switches and I have them across 3 hosts - I'm wondering if this would need STP? I feel like my setup (multi-node vSphere cluster with multiple VLAN port groups) isn't uncommon. Very green when it comes to networking...

I have a USG with 3 VLANs, v120 for management, v21 for WiFi, and v130 for "internet" to send to pfSense. Behind pfSense are 4 more VLANs, v20, v30, v50, v240.

A rough diagram...

Internet > Unifi Secure Gateway > Port1        ESXiHOST#3 VM-pfSense (Hardware passthrough for WAN, v130)
                                                       Port2        Nexus 3048 Switch (Trunked port: v120, v21)
                                                       Port3        Unifi Access Point (v21)

 

ESXi#1-#3 - 1x 10GB & 2x 1GB connections per host to the Nexus 3048 Switch, all trunked (v20, v30, v50, v240). This is all on a distributed virtual switch, with a port group for every VLAN.
Physical FreeNAS box - 2x 10GB connections. 1 10GB is v240 (iSCSI) and 1 10GB is v30 (SMB/Management traffic)

[beersykins]

vSwitch have some enhanced forwarding rules built in to prevent loops without having to rely on STP.

 

If you created a broadcast storm you'd know pretty quickly