Hello everyone!

I wonder if there is an rough/approximate formula to tell what bandwdith a particular type of PC can ensure with RouterOS? I have a setting where two MT routers are connected via switch to one another and to the ISP. When I try data transfer from a PC behind one router to a PC behind the other, I get approx. 21 Mbps in Task Manager > Networking and 19 mbps in RouterOS > Interface > Traffic. Both routers are P166, 32/48 Mb RAM, regular and IDE flash HDDs, all NICs are Realtek 8139x, router CPU load is 65%/100% during transfer. Is CPU speed the bottleneck? What CPU should be enough for 100 Mbps without encryption and alike extras?

For connection to a slow ISP it is not an issue but to communicate directly between two networks, this feels a little slow ;=).

Any ideas / comments?

Bruno

Yup, you need faster CPU.

Eugene

look in the post threads about Nstream as this deals with higher bandwidth applications and has alot of info about processors....

Hello everyone!

I wonder if there is an rough/approximate formula to tell what bandwdith a particular type of PC can ensure with RouterOS? I have a setting where two MT routers are connected via switch to one another and to the ISP. When I try data transfer from a PC behind one router to a PC behind the other, I get approx. 21 Mbps in Task Manager > Networking and 19 mbps in RouterOS > Interface > Traffic. Both routers are P166, 32/48 Mb RAM, regular and IDE flash HDDs, all NICs are Realtek 8139x, router CPU load is 65%/100% during transfer. Is CPU speed the bottleneck? What CPU should be enough for 100 Mbps without encryption and alike extras?

For connection to a slow ISP it is not an issue but to communicate directly between two networks, this feels a little slow ;=).

Any ideas / comments?
Bruno

Realtek card is using up all your CPU. Problem will be reduced if you upgrade to better cards (I recommend Intel, others recommend 3Com).

switch to intel etherexpress or 3com 905b . They should work with your 166mhz and due to them using fewer interrupts you will see a lower cpu usage and higher transfer .

Thanks everyone!

Bruno