I have the following setup:
CRS328 connected with a CCR1009 through the 10G SFP Ports. Link status is ok and speed indicated at 10G Full duplex on Both devices.
For testing purposes i initiated a Traffic Generator Test from the CCR1009 to CRS 328. Althouh CCR1009 could without any problem transmit data at a rate of 9.5-9.8 Gbps stable to the CRS328, the CRS328 would only reply back with a maximum rate of 1.2-1.3 Gbps.
I tried to iniate the test backwards, from CRS328 to CCR1009 and CRS328 wouldnt transmit at a rate higher than1.2-1.3 Gbps.
So in both cases CRS328 shows a maximum Tx/Rx of 1.2-1.3Gbps.
As ste is alluding to - the CRS is for switching, traffic generator would require the packets to hit the CPU and not be handled purely in switch chip. TO test speed of your CRS328 you would need something out another port to push to the CCR1009, so you are testing the CRS forwarding capability - which when configured right to use the switch chip - would be at full wire speed.
My CRS317 suddenly started sending all traffic to its CPU the other day and it was still getting close to 1gbit forwarded, with many ports and high pps rate, so your test of 1.2-1.3gbit sounds about right for CPU limitation.
Ofcorse i know its for switching, am just looking for ways to test that i can reach close to 10Gbps speed.
I guess i’ ll connect a device on another sfp port of the CRS328 and see the results. Thats what you suggested right?
For example a nas storage device, capable of accepting SFP, connected on sfp1of CRS 328 and a second nas device on sfp2 port would be able to communicate on a complete 10Gbps speed on a file transfer? Have you tested something like that?
Theoretically - as long as the disks in the NAS etc can sustain 10gbps, then yes the switch will forward 10gbps as long as its properly configured to use the switch chip.
When it’s using the switch chip, it will forward traffic at full wire speed.