Probable typo in slide 2.26 (VLANs)

MehdiBadreddine

Hello, this is my first post here, I'd like to mention an error/typo(?) in slide 2.26 dealing about vlans.
In the last paragraph, here is the following sentense :
"Configure the trunk port for switch-to-switch communication and encapsulation. An option, pfSense, may be available to help propagate the configuration to other switches."
What has 'pfSense' to do here ? please correct if I'm wrong, or provide the correct keyword, I'm not sure what is the right word to use here.
Thanks in advance,
Best Regards,

Mehdi

Estevezm

@MehdiBadreddine
PFSense is an open source firewall that you could install on hardware or run as a VM. For further information please take a look at the below link.
https://www.pfsense.org/