PPoE bridge over vlan

i just setting up my isp router to do bridge mode over vlan, but after testing, the speed decrease by 10 Mbps on upload and download to be exact around 90 Mbps upload and download from previously 100 Mbps download and upload.

The configuration is
ISP ROUTER --bridge over vlan-- SWITCH UNMANAGED ----- OPEN WRT ROUTER ----- (Going Back to the same switch via the same port without vlan to give internet acces to device connected to the switch )
NB: In the Open WRT Router i use software vlan

Is that because because of the vlan ??

Not because of the vlan. You have introduced 2 more devices in the scheme, plus the cables. If something has losses or doesn't work properly for that throughput, you'll have issues. For example you didn't mention the OpenWrt router brand and model, or if you apply any special QoS.

1 Like

I Use redmi ac21000 and a tp link gigabit unamanged switch with cat 5e cable, when i use it in dumb AP configuration on open wrt with the same hardware setup, i get full 100Mbps upload and download.

after some experiment i observe that if i configure the router without NAT ( dump AP mode ) i get full troughput but when i'm using it behind nat it drops to 90 Mbps from 100Mbps. youre right its not because of the vlan. any solution i can try ?

How are you measuring the throughput? Running some speedtest from the router or from a device in the lan?
Start a top or htop when you run the speedtest and monitor the cpu usage. Copy the output from the ssh and paste it here in preformatted text (the </> button).

I'm using speedtest from a device in lan in all scenario ( in nat vs dump ap cases no physical network configuration difference ( same port, cable, switch and hardware ))

Here are the top command result while running speed test in nat mode ( only got 90Mbps ,as previously said, rather than 100Mbps in dump ap )
NB: Maximum peak load in luci when running speedtest at 0.28

root@OpenWrt:~# top
Mem: 40896K used, 79900K free, 80K shrd, 0K buff, 9904K cached
CPU:   0% usr   2% sys   0% nic  97% idle   0% io   0% irq   0% sirq
Load average: 0.09 0.09 0.04 2/100 2892
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 2892  2842 root     R     1328   1%   2% top
 1468  1466 network  S     4396   4%   0% /usr/sbin/wpa_supplicant -n -s -g /var/run/wpa_supplicant/global
 1470  1465 network  S     4396   4%   0% /usr/sbin/hostapd -s -g /var/run/hostapd/global
 1710     1 root     S     4108   3%   0% /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -u /ubus -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 2150     1 root     S     2664   2%   0% {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r
 1465     1 root     S     2664   2%   0% {hostapd} /sbin/ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- /usr/sbin/hostapd
 1466     1 root     S     2664   2%   0% {wpa_supplicant} /sbin/ujail -t 5 -n wpa_supplicant -U network -G network -C /etc/capabilities/wpad.json -c -- /usr
 2738     1 root     S     2664   2%   0% {dnsmasq} /sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/gro
 1110     1 root     S     2136   2%   0% /sbin/rpcd -s /var/run/ubus/ubus.sock -t 30
 1530     1 root     S     1844   2%   0% /sbin/netifd
    1     0 root     S     1684   1%   0% /sbin/procd
 1589     1 root     S     1536   1%   0% /usr/sbin/odhcpd
 2743  2738 dnsmasq  S     1492   1%   0% /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 2842  2841 root     S     1368   1%   0% -ash
 1028     1 logd     S     1352   1%   0% /sbin/logd -S 64
  635     1 ubus     S     1336   1%   0% /sbin/ubusd
 2191  2150 ntp      S     1312   1%   0% /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.poo
 2413  1530 root     S     1312   1%   0% udhcpc -p /var/run/udhcpc-wan.pid -s /lib/netifd/dhcp.script -f -t 0 -i wan -x hostname:OpenWrt -C -R -O 121
 2841  1361 root     S     1264   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3 -2 9
 1361     1 root     S     1216   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
 2412  1530 root     S     1132   1%   0% odhcp6c -s /lib/netifd/dhcpv6.script -P0 -t120 wan
  671     1 root     S     1116   1%   0% /sbin/urngd
  636     1 root     S     1000   1%   0% /sbin/askfirst /usr/libexec/login.sh
  393     2 root     IW       0   0%   0% [kworker/2:2-eve]
  207     2 root     IW       0   0%   0% [kworker/1:1-eve]
    5     2 root     IW       0   0%   0% [kworker/0:0-eve]
  444     2 root     IW       0   0%   0% [kworker/0:4-eve]
 2853     2 root     IW       0   0%   0% [kworker/u8:7-nf]
  464     2 root     IW       0   0%   0% [kworker/3:2-eve]
   40     2 root     IW       0   0%   0% [kworker/3:1-eve]
 2855     2 root     IW       0   0%   0% [kworker/u8:8-nf]
    7     2 root     IW       0   0%   0% [kworker/u8:0-nf]
  446     2 root     IW       0   0%   0% [kworker/0:6-eve]
   11     2 root     IW       0   0%   0% [rcu_sched]
   12     2 root     SW       0   0%   0% [migration/0]
   25     2 root     SW       0   0%   0% [migration/3]
   20     2 root     SW       0   0%   0% [migration/2]
   15     2 root     SW       0   0%   0% [migration/1]
  171     2 root     IW       0   0%   0% [kworker/u8:3-ev]
   10     2 root     SW       0   0%   0% [ksoftirqd/0]
Mem: 40888K used, 79908K free, 80K shrd, 0K buff, 9904K cached
CPU:   0% usr   0% sys   0% nic  99% idle   0% io   0% irq   0% sirq
Load average: 0.08 0.09 0.04 3/94 2892
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 2892  2842 root     R     1328   1%   0% top
 2841  1361 root     S     1264   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3 -2 9
  444     2 root     IW       0   0%   0% [kworker/0:4-eve]
  476     2 root     IW<      0   0%   0% [kworker/0:1H-ev]
 1468  1466 network  S     4396   4%   0% /usr/sbin/wpa_supplicant -n -s -g /var/run/wpa_supplicant/global
 1470  1465 network  S     4396   4%   0% /usr/sbin/hostapd -s -g /var/run/hostapd/global
 1710     1 root     S     4108   3%   0% /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -u /ubus -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 2150     1 root     S     2664   2%   0% {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r
 1465     1 root     S     2664   2%   0% {hostapd} /sbin/ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- /usr/sbin/hostapd
 1466     1 root     S     2664   2%   0% {wpa_supplicant} /sbin/ujail -t 5 -n wpa_supplicant -U network -G network -C /etc/capabilities/wpad.json -c -- /usr
 2738     1 root     S     2664   2%   0% {dnsmasq} /sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/gro
 1110     1 root     S     2136   2%   0% /sbin/rpcd -s /var/run/ubus/ubus.sock -t 30
 1530     1 root     S     1844   2%   0% /sbin/netifd
    1     0 root     S     1684   1%   0% /sbin/procd
 1589     1 root     S     1536   1%   0% /usr/sbin/odhcpd
 2743  2738 dnsmasq  S     1492   1%   0% /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 2842  2841 root     S     1368   1%   0% -ash
 1028     1 logd     S     1352   1%   0% /sbin/logd -S 64
  635     1 ubus     S     1336   1%   0% /sbin/ubusd
 2191  2150 ntp      S     1312   1%   0% /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.poo
 2413  1530 root     S     1312   1%   0% udhcpc -p /var/run/udhcpc-wan.pid -s /lib/netifd/dhcp.script -f -t 0 -i wan -x hostname:OpenWrt -C -R -O 121
 1361     1 root     S     1216   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
 2412  1530 root     S     1132   1%   0% odhcp6c -s /lib/netifd/dhcpv6.script -P0 -t120 wan
  671     1 root     S     1116   1%   0% /sbin/urngd
  636     1 root     S     1000   1%   0% /sbin/askfirst /usr/libexec/login.sh
  393     2 root     IW       0   0%   0% [kworker/2:2-eve]
  207     2 root     IW       0   0%   0% [kworker/1:1-mm_]
 2853     2 root     IW       0   0%   0% [kworker/u8:7-nf]
  464     2 root     IW       0   0%   0% [kworker/3:2-eve]
   40     2 root     IW       0   0%   0% [kworker/3:1-eve]
 2855     2 root     IW       0   0%   0% [kworker/u8:8-nf]
    7     2 root     IW       0   0%   0% [kworker/u8:0-nf]
  446     2 root     IW       0   0%   0% [kworker/0:6-eve]
   11     2 root     IW       0   0%   0% [rcu_sched]
   25     2 root     SW       0   0%   0% [migration/3]
   12     2 root     SW       0   0%   0% [migration/0]
   20     2 root     SW       0   0%   0% [migration/2]
   15     2 root     SW       0   0%   0% [migration/1]
  171     2 root     IW       0   0%   0% [kworker/u8:3-nf]
   10     2 root     SW       0   0%   0% [ksoftirqd/0]
Mem: 40880K used, 79916K free, 80K shrd, 0K buff, 9904K cached
CPU:   0% usr   0% sys   0% nic  99% idle   0% io   0% irq   0% sirq
Load average: 0.07 0.08 0.04 3/93 2892
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 2892  2842 root     R     1328   1%   0% top
 2841  1361 root     S     1264   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3 -2 9
 1468  1466 network  S     4396   4%   0% /usr/sbin/wpa_supplicant -n -s -g /var/run/wpa_supplicant/global
 1470  1465 network  S     4396   4%   0% /usr/sbin/hostapd -s -g /var/run/hostapd/global
 1710     1 root     S     4108   3%   0% /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -u /ubus -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 2150     1 root     S     2664   2%   0% {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r
 1466     1 root     S     2664   2%   0% {wpa_supplicant} /sbin/ujail -t 5 -n wpa_supplicant -U network -G network -C /etc/capabilities/wpad.json -c -- /usr
 2738     1 root     S     2664   2%   0% {dnsmasq} /sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/gro
 1465     1 root     S     2664   2%   0% {hostapd} /sbin/ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- /usr/sbin/hostapd
 1110     1 root     S     2136   2%   0% /sbin/rpcd -s /var/run/ubus/ubus.sock -t 30
 1530     1 root     S     1844   2%   0% /sbin/netifd
    1     0 root     S     1684   1%   0% /sbin/procd
 1589     1 root     S     1536   1%   0% /usr/sbin/odhcpd
 2743  2738 dnsmasq  S     1492   1%   0% /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 2842  2841 root     S     1368   1%   0% -ash
 1028     1 logd     S     1352   1%   0% /sbin/logd -S 64
  635     1 ubus     S     1336   1%   0% /sbin/ubusd
 2191  2150 ntp      S     1312   1%   0% /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.poo
 2413  1530 root     S     1312   1%   0% udhcpc -p /var/run/udhcpc-wan.pid -s /lib/netifd/dhcp.script -f -t 0 -i wan -x hostname:OpenWrt -C -R -O 121
 1361     1 root     S     1216   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
 2412  1530 root     S     1132   1%   0% odhcp6c -s /lib/netifd/dhcpv6.script -P0 -t120 wan
  671     1 root     S     1116   1%   0% /sbin/urngd
  636     1 root     S     1000   1%   0% /sbin/askfirst /usr/libexec/login.sh
  393     2 root     IW       0   0%   0% [kworker/2:2-eve]
  207     2 root     IW       0   0%   0% [kworker/1:1-mm_]
  444     2 root     IW       0   0%   0% [kworker/0:4-eve]
 2853     2 root     IW       0   0%   0% [kworker/u8:7-nf]
  464     2 root     IW       0   0%   0% [kworker/3:2-eve]
   40     2 root     IW       0   0%   0% [kworker/3:1-eve]
 2855     2 root     IW       0   0%   0% [kworker/u8:8-nf]
    7     2 root     IW       0   0%   0% [kworker/u8:0-nf]
  446     2 root     IW       0   0%   0% [kworker/0:6-eve]
   11     2 root     IW       0   0%   0% [rcu_sched]
   25     2 root     SW       0   0%   0% [migration/3]
   12     2 root     SW       0   0%   0% [migration/0]
   20     2 root     SW       0   0%   0% [migration/2]
   15     2 root     SW       0   0%   0% [migration/1]
  171     2 root     IW       0   0%   0% [kworker/u8:3-nf]
   10     2 root     SW       0   0%   0% [ksoftirqd/0]
   33     2 root     IW       0   0%   0% [kworker/u8:2-nf]
Mem: 40872K used, 79924K free, 80K shrd, 0K buff, 9904K cached
CPU:   0% usr   0% sys   0% nic  99% idle   0% io   0% irq   0% sirq
Load average: 0.07 0.08 0.04 3/91 2892
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 2892  2842 root     R     1328   1%   0% top
 2841  1361 root     S     1264   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3 -2 9
 1468  1466 network  S     4396   4%   0% /usr/sbin/wpa_supplicant -n -s -g /var/run/wpa_supplicant/global
 1470  1465 network  S     4396   4%   0% /usr/sbin/hostapd -s -g /var/run/hostapd/global
 1710     1 root     S     4108   3%   0% /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -u /ubus -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 2150     1 root     S     2664   2%   0% {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r
 1466     1 root     S     2664   2%   0% {wpa_supplicant} /sbin/ujail -t 5 -n wpa_supplicant -U network -G network -C /etc/capabilities/wpad.json -c -- /usr
 2738     1 root     S     2664   2%   0% {dnsmasq} /sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/gro
 1465     1 root     S     2664   2%   0% {hostapd} /sbin/ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- /usr/sbin/hostapd
 1110     1 root     S     2136   2%   0% /sbin/rpcd -s /var/run/ubus/ubus.sock -t 30
 1530     1 root     S     1844   2%   0% /sbin/netifd
    1     0 root     S     1684   1%   0% /sbin/procd
 1589     1 root     S     1536   1%   0% /usr/sbin/odhcpd
 2743  2738 dnsmasq  S     1492   1%   0% /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 2842  2841 root     S     1368   1%   0% -ash
 1028     1 logd     S     1352   1%   0% /sbin/logd -S 64
  635     1 ubus     S     1336   1%   0% /sbin/ubusd
 2191  2150 ntp      S     1312   1%   0% /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.poo
 2413  1530 root     S     1312   1%   0% udhcpc -p /var/run/udhcpc-wan.pid -s /lib/netifd/dhcp.script -f -t 0 -i wan -x hostname:OpenWrt -C -R -O 121
 1361     1 root     S     1216   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
 2412  1530 root     S     1132   1%   0% odhcp6c -s /lib/netifd/dhcpv6.script -P0 -t120 wan
  671     1 root     S     1116   1%   0% /sbin/urngd
  636     1 root     S     1000   1%   0% /sbin/askfirst /usr/libexec/login.sh
  393     2 root     IW       0   0%   0% [kworker/2:2-eve]
  207     2 root     IW       0   0%   0% [kworker/1:1-mm_]
  444     2 root     IW       0   0%   0% [kworker/0:4-eve]
 2853     2 root     IW       0   0%   0% [kworker/u8:7-nf]
  464     2 root     IW       0   0%   0% [kworker/3:2-mm_]
   40     2 root     IW       0   0%   0% [kworker/3:1-eve]
 2855     2 root     IW       0   0%   0% [kworker/u8:8-nf]
    7     2 root     IW       0   0%   0% [kworker/u8:0-nf]
  446     2 root     IW       0   0%   0% [kworker/0:6-eve]
   11     2 root     IW       0   0%   0% [rcu_sched]
   25     2 root     SW       0   0%   0% [migration/3]
   12     2 root     SW       0   0%   0% [migration/0]
   20     2 root     SW       0   0%   0% [migration/2]
   15     2 root     SW       0   0%   0% [migration/1]
  171     2 root     IW       0   0%   0% [kworker/u8:3-nf]
   10     2 root     SW       0   0%   0% [ksoftirqd/0]
   30     2 root     IW       0   0%   0% [kworker/u8:1-nf]
Mem: 40840K used, 79956K free, 80K shrd, 0K buff, 9904K cached
CPU:   0% usr   0% sys   0% nic  99% idle   0% io   0% irq   0% sirq
Load average: 0.06 0.08 0.04 2/91 2892
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 2892  2842 root     R     1328   1%   0% top
 2841  1361 root     S     1264   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3 -2 9
 1468  1466 network  S     4396   4%   0% /usr/sbin/wpa_supplicant -n -s -g /var/run/wpa_supplicant/global
 1470  1465 network  S     4396   4%   0% /usr/sbin/hostapd -s -g /var/run/hostapd/global
 1710     1 root     S     4108   3%   0% /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -u /ubus -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 2150     1 root     S     2664   2%   0% {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r
 1466     1 root     S     2664   2%   0% {wpa_supplicant} /sbin/ujail -t 5 -n wpa_supplicant -U network -G network -C /etc/capabilities/wpad.json -c -- /usr
 2738     1 root     S     2664   2%   0% {dnsmasq} /sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/gro
 1465     1 root     S     2664   2%   0% {hostapd} /sbin/ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- /usr/sbin/hostapd
 1110     1 root     S     2136   2%   0% /sbin/rpcd -s /var/run/ubus/ubus.sock -t 30
 1530     1 root     S     1844   2%   0% /sbin/netifd
    1     0 root     S     1684   1%   0% /sbin/procd
 1589     1 root     S     1536   1%   0% /usr/sbin/odhcpd
 2743  2738 dnsmasq  S     1492   1%   0% /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 2842  2841 root     S     1368   1%   0% -ash
 1028     1 logd     S     1352   1%   0% /sbin/logd -S 64
  635     1 ubus     S     1336   1%   0% /sbin/ubusd
 2191  2150 ntp      S     1312   1%   0% /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.poo
 2413  1530 root     S     1312   1%   0% udhcpc -p /var/run/udhcpc-wan.pid -s /lib/netifd/dhcp.script -f -t 0 -i wan -x hostname:OpenWrt -C -R -O 121
 1361     1 root     S     1216   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
 2412  1530 root     S     1132   1%   0% odhcp6c -s /lib/netifd/dhcpv6.script -P0 -t120 wan
  671     1 root     S     1116   1%   0% /sbin/urngd
  636     1 root     S     1000   1%   0% /sbin/askfirst /usr/libexec/login.sh
  393     2 root     IW       0   0%   0% [kworker/2:2-eve]
  207     2 root     IW       0   0%   0% [kworker/1:1-mm_]
  444     2 root     IW       0   0%   0% [kworker/0:4-eve]
 2853     2 root     IW       0   0%   0% [kworker/u8:7-nf]
  464     2 root     IW       0   0%   0% [kworker/3:2-mm_]
   40     2 root     IW       0   0%   0% [kworker/3:1-eve]
 2855     2 root     IW       0   0%   0% [kworker/u8:8-nf]
    7     2 root     IW       0   0%   0% [kworker/u8:0-nf]
  446     2 root     IW       0   0%   0% [kworker/0:6-eve]
   11     2 root     IW       0   0%   0% [rcu_sched]
   25     2 root     SW       0   0%   0% [migration/3]
   12     2 root     SW       0   0%   0% [migration/0]
   20     2 root     SW       0   0%   0% [migration/2]
   15     2 root     SW       0   0%   0% [migration/1]
  171     2 root     IW       0   0%   0% [kworker/u8:3-nf]
   10     2 root     SW       0   0%   0% [ksoftirqd/0]
   30     2 root     IW       0   0%   0% [kworker/u8:1-nf]
Mem: 40840K used, 79956K free, 80K shrd, 0K buff, 9904K cached
CPU:   0% usr   0% sys   0% nic  99% idle   0% io   0% irq   0% sirq
Load average: 0.06 0.08 0.04 2/91 2892
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 2892  2842 root     R     1328   1%   0% top
 1589     1 root     S     1536   1%   0% /usr/sbin/odhcpd
 2841  1361 root     S     1264   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3 -2 9
 1468  1466 network  S     4396   4%   0% /usr/sbin/wpa_supplicant -n -s -g /var/run/wpa_supplicant/global
 1470  1465 network  S     4396   4%   0% /usr/sbin/hostapd -s -g /var/run/hostapd/global
 1710     1 root     S     4108   3%   0% /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -u /ubus -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 2150     1 root     S     2664   2%   0% {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r
 2738     1 root     S     2664   2%   0% {dnsmasq} /sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/gro
 1465     1 root     S     2664   2%   0% {hostapd} /sbin/ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- /usr/sbin/hostapd
 1466     1 root     S     2664   2%   0% {wpa_supplicant} /sbin/ujail -t 5 -n wpa_supplicant -U network -G network -C /etc/capabilities/wpad.json -c -- /usr
 1110     1 root     S     2136   2%   0% /sbin/rpcd -s /var/run/ubus/ubus.sock -t 30
 1530     1 root     S     1844   2%   0% /sbin/netifd
    1     0 root     S     1684   1%   0% /sbin/procd
 2743  2738 dnsmasq  S     1492   1%   0% /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 2842  2841 root     S     1368   1%   0% -ash
 1028     1 logd     S     1352   1%   0% /sbin/logd -S 64
  635     1 ubus     S     1336   1%   0% /sbin/ubusd
 2191  2150 ntp      S     1312   1%   0% /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.poo
 2413  1530 root     S     1312   1%   0% udhcpc -p /var/run/udhcpc-wan.pid -s /lib/netifd/dhcp.script -f -t 0 -i wan -x hostname:OpenWrt -C -R -O 121
 1361     1 root     S     1216   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
 2412  1530 root     S     1132   1%   0% odhcp6c -s /lib/netifd/dhcpv6.script -P0 -t120 wan
  671     1 root     S     1116   1%   0% /sbin/urngd
  636     1 root     S     1000   1%   0% /sbin/askfirst /usr/libexec/login.sh
  393     2 root     IW       0   0%   0% [kworker/2:2-eve]
  207     2 root     IW       0   0%   0% [kworker/1:1-eve]
  444     2 root     IW       0   0%   0% [kworker/0:4-eve]
 2853     2 root     IW       0   0%   0% [kworker/u8:7-nf]
  464     2 root     IW       0   0%   0% [kworker/3:2-eve]
   40     2 root     IW       0   0%   0% [kworker/3:1-eve]
 2855     2 root     IW       0   0%   0% [kworker/u8:8-nf]
    7     2 root     IW       0   0%   0% [kworker/u8:0-nf]
  446     2 root     IW       0   0%   0% [kworker/0:6-eve]
   11     2 root     IW       0   0%   0% [rcu_sched]
   25     2 root     SW       0   0%   0% [migration/3]
   12     2 root     SW       0   0%   0% [migration/0]
   20     2 root     SW       0   0%   0% [migration/2]
   15     2 root     SW       0   0%   0% [migration/1]
  171     2 root     IW       0   0%   0% [kworker/u8:3-nf]
   10     2 root     SW       0   0%   0% [ksoftirqd/0]
   30     2 root     IW       0   0%   0% [kworker/u8:1-nf]
Mem: 40868K used, 79928K free, 80K shrd, 0K buff, 9904K cached
CPU:   0% usr   0% sys   0% nic  99% idle   0% io   0% irq   0% sirq
Load average: 0.05 0.08 0.04 2/91 2893
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 2892  2842 root     R     1328   1%   0% top
 1589     1 root     S     1536   1%   0% /usr/sbin/odhcpd
 2841  1361 root     S     1264   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3 -2 9
 2412  1530 root     S     1132   1%   0% odhcp6c -s /lib/netifd/dhcpv6.script -P0 -t120 wan
  444     2 root     IW       0   0%   0% [kworker/0:4-eve]
 1468  1466 network  S     4396   4%   0% /usr/sbin/wpa_supplicant -n -s -g /var/run/wpa_supplicant/global
 1470  1465 network  S     4396   4%   0% /usr/sbin/hostapd -s -g /var/run/hostapd/global
 1710     1 root     S     4108   3%   0% /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -u /ubus -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 2150     1 root     S     2664   2%   0% {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r
 2738     1 root     S     2664   2%   0% {dnsmasq} /sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/gro
 1465     1 root     S     2664   2%   0% {hostapd} /sbin/ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- /usr/sbin/hostapd
 1466     1 root     S     2664   2%   0% {wpa_supplicant} /sbin/ujail -t 5 -n wpa_supplicant -U network -G network -C /etc/capabilities/wpad.json -c -- /usr
 1110     1 root     S     2136   2%   0% /sbin/rpcd -s /var/run/ubus/ubus.sock -t 30
 1530     1 root     S     1844   2%   0% /sbin/netifd
    1     0 root     S     1684   1%   0% /sbin/procd
 2743  2738 dnsmasq  S     1492   1%   0% /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 2842  2841 root     S     1368   1%   0% -ash
 1028     1 logd     S     1352   1%   0% /sbin/logd -S 64
  635     1 ubus     S     1336   1%   0% /sbin/ubusd
 2191  2150 ntp      S     1312   1%   0% /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.poo
 2413  1530 root     S     1312   1%   0% udhcpc -p /var/run/udhcpc-wan.pid -s /lib/netifd/dhcp.script -f -t 0 -i wan -x hostname:OpenWrt -C -R -O 121
 1361     1 root     S     1216   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
  671     1 root     S     1116   1%   0% /sbin/urngd
  636     1 root     S     1000   1%   0% /sbin/askfirst /usr/libexec/login.sh
  393     2 root     IW       0   0%   0% [kworker/2:2-eve]
  207     2 root     IW       0   0%   0% [kworker/1:1-eve]
 2853     2 root     IW       0   0%   0% [kworker/u8:7-nf]
  464     2 root     IW       0   0%   0% [kworker/3:2-eve]
   40     2 root     IW       0   0%   0% [kworker/3:1-eve]
 2855     2 root     IW       0   0%   0% [kworker/u8:8-nf]
    7     2 root     IW       0   0%   0% [kworker/u8:0-nf]
  446     2 root     IW       0   0%   0% [kworker/0:6-eve]
   11     2 root     IW       0   0%   0% [rcu_sched]
   25     2 root     SW       0   0%   0% [migration/3]
   12     2 root     SW       0   0%   0% [migration/0]
   20     2 root     SW       0   0%   0% [migration/2]
   15     2 root     SW       0   0%   0% [migration/1]
  171     2 root     IW       0   0%   0% [kworker/u8:3-nf]
   10     2 root     SW       0   0%   0% [ksoftirqd/0]
   30     2 root     IW       0   0%   0% [kworker/u8:1-nf]
Mem: 40960K used, 79836K free, 80K shrd, 0K buff, 9904K cached
CPU:   0% usr   0% sys   0% nic  99% idle   0% io   0% irq   0% sirq
Load average: 0.05 0.08 0.04 2/91 2893
  PID  PPID USER     STAT   VSZ %VSZ %CPU COMMAND
 2892  2842 root     R     1328   1%   0% top
 2841  1361 root     S     1264   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3 -2 9
 2853     2 root     IW       0   0%   0% [kworker/u8:7-nf]
  464     2 root     IW       0   0%   0% [kworker/3:2-eve]
 1468  1466 network  S     4396   4%   0% /usr/sbin/wpa_supplicant -n -s -g /var/run/wpa_supplicant/global
 1470  1465 network  S     4396   4%   0% /usr/sbin/hostapd -s -g /var/run/hostapd/global
 1710     1 root     S     4108   3%   0% /usr/sbin/uhttpd -f -h /www -r OpenWrt -x /cgi-bin -u /ubus -t 60 -T 30 -k 20 -A 1 -n 3 -N 100 -R -p 0.0.0.0:80 -p
 2150     1 root     S     2664   2%   0% {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r
 2738     1 root     S     2664   2%   0% {dnsmasq} /sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/gro
 1466     1 root     S     2664   2%   0% {wpa_supplicant} /sbin/ujail -t 5 -n wpa_supplicant -U network -G network -C /etc/capabilities/wpad.json -c -- /usr
 1465     1 root     S     2664   2%   0% {hostapd} /sbin/ujail -t 5 -n hostapd -U network -G network -C /etc/capabilities/wpad.json -c -- /usr/sbin/hostapd
 1110     1 root     S     2136   2%   0% /sbin/rpcd -s /var/run/ubus/ubus.sock -t 30
 1530     1 root     S     1844   2%   0% /sbin/netifd
    1     0 root     S     1684   1%   0% /sbin/procd
 1589     1 root     S     1536   1%   0% /usr/sbin/odhcpd
 2743  2738 dnsmasq  S     1492   1%   0% /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid
 2842  2841 root     S     1368   1%   0% -ash
 1028     1 logd     S     1352   1%   0% /sbin/logd -S 64
  635     1 ubus     S     1336   1%   0% /sbin/ubusd
 2191  2150 ntp      S     1312   1%   0% /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.poo
 2413  1530 root     S     1312   1%   0% udhcpc -p /var/run/udhcpc-wan.pid -s /lib/netifd/dhcp.script -f -t 0 -i wan -x hostname:OpenWrt -C -R -O 121
 1361     1 root     S     1216   1%   0% /usr/sbin/dropbear -F -P /var/run/dropbear.1.pid -p 22 -K 300 -T 3
 2412  1530 root     S     1132   1%   0% odhcp6c -s /lib/netifd/dhcpv6.script -P0 -t120 wan
  671     1 root     S     1116   1%   0% /sbin/urngd
  636     1 root     S     1000   1%   0% /sbin/askfirst /usr/libexec/login.sh
  393     2 root     IW       0   0%   0% [kworker/2:2-eve]
  207     2 root     IW       0   0%   0% [kworker/1:1-eve]
  444     2 root     IW       0   0%   0% [kworker/0:4-eve]
   40     2 root     IW       0   0%   0% [kworker/3:1-eve]
 2855     2 root     IW       0   0%   0% [kworker/u8:8-nf]
    7     2 root     IW       0   0%   0% [kworker/u8:0-nf]
  446     2 root     IW       0   0%   0% [kworker/0:6-eve]
   11     2 root     IW       0   0%   0% [rcu_sched]
   25     2 root     SW       0   0%   0% [migration/3]
   12     2 root     SW       0   0%   0% [migration/0]
   20     2 root     SW       0   0%   0% [migration/2]
   15     2 root     SW       0   0%   0% [migration/1]
  171     2 root     IW       0   0%   0% [kworker/u8:3-nf]
   10     2 root     SW       0   0%   0% [ksoftirqd/0]
^C 30     2 root     IW       0   0%   0% [kworker/u8:1-nf]

Found it !! its actually caused by some weird behaviour by the switch, after replacing it it solved all the problem, thanks for your help @trendy

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