On Monday 16 Mar 2009, Dinesh Joshi wrote:
On Mon, Mar 16, 2009 at 7:01 AM, jtd jtd@mtnl.net.in wrote:
Umm their BW must be bagazillions then. Considering that 2Mbps leased lines are a luxury in most places, you would have to munge a few cds physically thru the router to get that traffic.
I was talking about the general case and not the specific case Rony mentioned. You could replace all CISCO / Juniper / whatever routers in India with x86 boxes and not have any effect on the overall efficiency of the network :)
partly true. However read previous para. A slow poke 33MBs (264mbps) pci slot will be able to handle a 100mbps local pipe blasting stuff out on a 2Mbps external link.
Well the I/O bus is the main bottleneck followed by the CPU. Again, I'm talking about the general case and not Ronu's specific case.
The PCIE 4x 2.0 (or whatever the latest incarnation is called) network card will give you 2GB/s or 16Gbps. This would require the memory to read/write at .5 nano secs. Current run of the mill ram speeds are 700Mhz or 1.4 nano secs, roughly 3 times slower. To me it seems that the big boys have witch craft + snake oil in their regular router boxes to make the ram run faster. We are not even talking of cpu inspecting packets as yet. The high end boxes do have multiple cpu and CAMs etc. But even there my bet is that the performance would be very bursty.