Hi Alen, Yep the hEX is directly connected from Port 1 to the NBN Alcatel NTD Port 1, I get the Gigabit link light up on the NTD and the hEX indicates ether1 autoneg'd at 1000Mbps full duplex so no problems with speed between NTD and hEX. Thanks On Fri, Mar 1, 2024 at 12:37 PM <alen@duxtel.com> wrote:
Hi Chris,
Are you directly connected to the hEX or is it through the supplied NBN switch?
Those switches are only Fast Ethernet.
Regards,
Alen
-----Original Message----- From: Public <public-bounces@talk.mikrotik.com.au> On Behalf Of Chris Lee via Public Sent: Friday, 1 March 2024 1:33 PM To: MikroTik Australia Public List <public@talk.mikrotik.com.au> Cc: Chris Lee <chris@datachaos.com.au> Subject: [MT-AU Public] High CPU and latency spike on RB750Gr3 during downloads
Hi all,
Am running RB750Gr3 firmware 7.13.5 with the out of box factory configuration for internet router. I have disabled RSTP on the bridge.
On NBN FTTP 100/40 plan with NTD connected to eth1 on the RB750Gr3.
Rest of my internal LAN is connected to eth2.
When I max out a download or run a speed test at 100Mbps I find the CPU on the HEX is getting up to 30-35%, and on upload around 20-25%.
At the same time I see in all my pings beyond my first hop ISP gateway that I get a big spike in latency which feels like the Mikrotik is struggling to process the traffic inbound.
I thought the RB750Gr3 was good for up to Gigabit speeds, but even then I'm only asking for 100Mbps - is there anything I need to tweak further in the configuration to fix this or should I be looking at a newer router like the L009 series, will that provide smoother throughput ?
Thanks, Chris _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au