Hi! I have a CRS326-24S±2Q with 100% of CPU only with 2 interfaces connected which the link is down by the way. At the momento to run tool>profile the high amount of cpu comes by “networking” but the switch is whitout any config and with factory config. I’ll paste an image of tool>profile through the serial console interface because the eth1 port don’t link.
Regards,
What is your " CRS326-24S±2Q " doing ?
If you are Layer-2 switching ports , then there is almost zero CPU load.
If you are Layer-2 bridging ports , then you are forcing all packets to go into the CPU , get some CPU processing , then go out the other interface. This can be very CPU consuming and likely can not sustain full port speeds.
If you are Layer-3 routing , keep in mind the " CRS326-24S±2Q " is more of a switch with limited Layer-3 routing speeds because this device has a single core 650 MHz processor.
If you are NATting and/or firewalling traffic or doing anything else outside of hardware switching - you still have single core 650 MHz processor.
Your CRS has two 40-Gig ports and 24 10-Gig ports - far far far more potential traffic than the CPU can bridge or route - however - your CRS can easily Layer-2 hardware switch at full-port-speed without any CPU load.
North Idaho Tom Jones
Hi Tom! The switch is doing literally nothing. I only powered on, connect the ethernet cable to manage and configure it but the cpu is in 100% every time. I have mention that the device was 1 year working as a full switch with no routing, no filters, no nat and no L3 tasks.
Regards,
Franco
please post your config anonimizing any private info
Hi!
This is solved, the flange which locks the sfp module in the interface sfp+18 was bent inside the device. Apparently it was toucking the interface board so the odd interfaces line: 1, 3 ,5 ,7 etc. was not working.
After adjust that flange and turn on the switch again the cpu was finally normal but the ports from 17 to 21 didn’t work. Finally after an upgrade to routeros 7.8 the ports started to work again.
We need to check the device working with traffic but in a first look it appears to be fixed.
Thanks!
