Internal network slowed down issue when doing Internet load

[Translator]

Hi everyone, I have two Cisco 9404R and 48 24-port 2960, and have configured a virtual private network with an internal LAN of Category 5e 1000 mega lines. My external Internet WAN uses SK 100 mega lines.

When one of the internal PC in the virtual private network excessively occupies the Internet bandwidth (such as P2P), the internal LAN speed is significantly lowered. The strange thing is that the Internet WAN is a 100-megabyte line, so even if it occupies all of it, it should be able to hold up to 100 megabyte. But why would the internal LAN speed be slowed down?

[MHM Cisco World]

You need to move this post to Switch or router this issue  not relate to sdwan

MHM

[Translator]

@Translator I've updated the board location accordingly Thank you.

[Translator]

Hello, @KIMSEYE. We are informing you of the location modification and update with the switching board according to your inquiry, so please refer to it. Please continue to pay a lot of attention to the community. Thank you!