I need some advise pertaining QOS with Site to Site VPN.
Our company just acquire another company and we have implement site to site VPN. The site to site VPN is working ok. We can access their network and they can access ours.
Issue we are facing is that when users access the internet or use applications which utilize the internet, the site to site VPN get clogged up as those applications are consuming bandwidth. I have applied QOS on our Linux firewall which reflect on our internal services such as email, browsing, etc.... (see attached diagram)
I was thinking of applying QOS on the edge router which will help mitigate the bandwidth issue.
our bandwidth from ISP is 3Mbps Download and 2Mbps Upload
grateful if you guys could send me some example or guide me on the way forward.
Thanks & Regards,