Weird Traffic Graph

[A Former User]

Anyone here can explain why my traffic graph looks like this? thanks!

Router: Intel Mini PC Celeron J1800
Speed: 1GB

dmesg:

Copyright (c) 1992-2018 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 11.2-RELEASE-p10 #9 4a2bfdce133(RELENG_2_4_4): Wed May 15 18:54:42 EDT 2019
    root@buildbot1-nyi.netgate.com:/build/ce-crossbuild-244/obj/amd64/ZfGpH5cd/build/ce-crossbuild-244/pfSense/tmp/FreeBSD-src/sys/pfSense amd64
FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on LLVM 6.0.0)
CPU: Intel(R) Celeron(R) CPU  J1800  @ 2.41GHz (2416.74-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x30678  Family=0x6  Model=0x37  Stepping=8
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x41d8e3bf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,RDRAND>
  AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
  AMD Features2=0x101<LAHF,Prefetch>
  Structured Extended Features=0x2282<TSCADJ,SMEP,ERMS,NFPUSG>
  VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID
  TSC: P-state invariant, performance statistics
real memory  = 2147483648 (2048 MB)
avail memory = 1907957760 (1819 MB)
Event timer "LAPIC" quality 600
ACPI APIC Table: <ALASKA A M I >
WARNING: L1 data cache covers less APIC IDs than a core
0 < 1
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s)
Firmware Warning (ACPI): 32/64X length mismatch in FADT/Gpe0Block: 128/32 (20171214/tbfadt-748)
ioapic0 <Version 2.0> irqs 0-86 on motherboard
SMP: AP CPU #1 Launched!
Timecounter "TSC-low" frequency 1208368317 Hz quality 1000
ipw_bss: You need to read the LICENSE file in /usr/share/doc/legal/intel_ipw.LICENSE.
ipw_bss: If you agree with the license, set legal.intel_ipw.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (ipw_bss_fw, 0xffffffff80681430, 0) error 1
random: entropy device external interface
ipw_ibss: You need to read the LICENSE file in /usr/share/doc/legal/intel_ipw.LICENSE.
ipw_ibss: If you agree with the license, set legal.intel_ipw.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (ipw_ibss_fw, 0xffffffff806814e0, 0) error 1
ipw_monitor: You need to read the LICENSE file in /usr/share/doc/legal/intel_ipw.LICENSE.
ipw_monitor: If you agree with the license, set legal.intel_ipw.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (ipw_monitor_fw, 0xffffffff80681590, 0) error 1
iwi_bss: You need to read the LICENSE file in /usr/share/doc/legal/intel_iwi.LICENSE.
iwi_bss: If you agree with the license, set legal.intel_iwi.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (iwi_bss_fw, 0xffffffff806a8460, 0) error 1
iwi_ibss: You need to read the LICENSE file in /usr/share/doc/legal/intel_iwi.LICENSE.
iwi_ibss: If you agree with the license, set legal.intel_iwi.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (iwi_ibss_fw, 0xffffffff806a8510, 0) error 1
iwi_monitor: You need to read the LICENSE file in /usr/share/doc/legal/intel_iwi.LICENSE.
iwi_monitor: If you agree with the license, set legal.intel_iwi.license_ack=1 in /boot/loader.conf.
module_register_init: MOD_LOAD (iwi_monitor_fw, 0xffffffff806a85c0, 0) error 1
wlan: mac acl policy registered
kbd1 at kbdmux0
netmap: loaded module
random: registering fast source Intel Secure Key RNG
random: fast provider: "Intel Secure Key RNG"
nexus0
cryptosoft0: <software crypto> on motherboard
padlock0: No ACE support.
acpi0: <ALASKA A M I > on motherboard
acpi0: Power Button (fixed)
unknown: I/O range not supported
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
atrtc0: <AT realtime clock> port 0x70-0x77 on acpi0
atrtc0: Warning: Couldn't map I/O.
atrtc0: registered as a time-of-day clock, resolution 1.000000s
Event timer "RTC" frequency 32768 Hz quality 0
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff irq 8 on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 950
Event timer "HPET" frequency 14318180 Hz quality 450
Event timer "HPET1" frequency 14318180 Hz quality 440
Event timer "HPET2" frequency 14318180 Hz quality 440
attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pcib0: _OSC returned error 0x10
pci0: <ACPI PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0xf080-0xf087 mem 0xd0000000-0xd03fffff,0xc0000000-0xcfffffff irq 16 at device 2.0 on pci0
vgapci0: Boot video device
ahci0: <AHCI SATA controller> port 0xf070-0xf077,0xf060-0xf063,0xf050-0xf057,0xf040-0xf043,0xf020-0xf03f mem 0xd0a16000-0xd0a167ff irq 19 at device 19.0 on pci0
ahci0: AHCI v1.30 with 2 3Gbps ports, Port Multiplier not supported
ahcich0: <AHCI channel> at channel 0 on ahci0
xhci0: <Intel BayTrail USB 3.0 controller> mem 0xd0a00000-0xd0a0ffff irq 20 at device 20.0 on pci0
xhci0: 32 bytes context size, 64-bit DMA
xhci0: Port routing mask set to 0xffffffff
usbus0 on xhci0
usbus0: 5.0Gbps Super Speed USB v3.0
pci0: <encrypt/decrypt> at device 26.0 (no driver attached)
hdac0: <Intel BayTrail HDA Controller> mem 0xd0a10000-0xd0a13fff irq 22 at device 27.0 on pci0
pcib1: <ACPI PCI-PCI bridge> irq 16 at device 28.0 on pci0
pcib1: [GIANT-LOCKED]
pci1: <ACPI PCI bus> on pcib1
em0: <Intel(R) PRO/1000 Network Connection 7.6.1-k> port 0xe000-0xe01f mem 0xd0900000-0xd091ffff,0xd0920000-0xd0923fff irq 16 at device 0.0 on pci1
em0: Using an MSI interrupt
em0: Ethernet address: 0c:e8:6c:68:2d:bf
em0: netmap queues/slots: TX 1/1024, RX 1/1024
pcib2: <ACPI PCI-PCI bridge> irq 17 at device 28.1 on pci0
pcib2: [GIANT-LOCKED]
pci2: <ACPI PCI bus> on pcib2
em1: <Intel(R) PRO/1000 Network Connection 7.6.1-k> port 0xd000-0xd01f mem 0xd0800000-0xd081ffff,0xd0820000-0xd0823fff irq 17 at device 0.0 on pci2
em1: Using an MSI interrupt
em1: Ethernet address: 0c:e8:6c:68:2d:c0
em1: netmap queues/slots: TX 1/1024, RX 1/1024
pcib3: <ACPI PCI-PCI bridge> irq 18 at device 28.2 on pci0
pcib3: [GIANT-LOCKED]
pci3: <ACPI PCI bus> on pcib3
em2: <Intel(R) PRO/1000 Network Connection 7.6.1-k> port 0xc000-0xc01f mem 0xd0700000-0xd071ffff,0xd0720000-0xd0723fff irq 18 at device 0.0 on pci3
em2: Using an MSI interrupt
em2: Ethernet address: 0c:e8:6c:68:2d:c1
em2: netmap queues/slots: TX 1/1024, RX 1/1024
pcib4: <ACPI PCI-PCI bridge> irq 19 at device 28.3 on pci0
pcib4: [GIANT-LOCKED]
pci4: <ACPI PCI bus> on pcib4
em3: <Intel(R) PRO/1000 Network Connection 7.6.1-k> port 0xb000-0xb01f mem 0xd0600000-0xd061ffff,0xd0620000-0xd0623fff irq 19 at device 0.0 on pci4
em3: Using an MSI interrupt
em3: Ethernet address: 0c:e8:6c:68:2d:c2
em3: netmap queues/slots: TX 1/1024, RX 1/1024
ehci0: <Intel BayTrail USB 2.0 controller> mem 0xd0a15000-0xd0a153ff irq 23 at device 29.0 on pci0
usbus1: EHCI version 1.0
usbus1 on ehci0
usbus1: 480Mbps High Speed USB v2.0
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
acpi_button0: <Power Button> on acpi0
acpi_button1: <Sleep Button> on acpi0
uart2: <16550 or compatible> port 0x3e0-0x3e7 irq 4 on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
ppc1: <Parallel port> port 0x378-0x37f,0x778-0x77f irq 5 drq 3 on acpi0
ppc1: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc1: FIFO with 16/16/16 bytes threshold
ppbus0: <Parallel port bus> on ppc1
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ppc0: cannot reserve I/O port range
est0: <Enhanced SpeedStep Frequency Control> on cpu0
est1: <Enhanced SpeedStep Frequency Control> on cpu1
Timecounters tick every 1.000 msec
hdacc0: <Intel (0x2882) HDA CODEC> at cad 2 on hdac0
hdaa0: <Intel (0x2882) Audio Function Group> at nid 1 on hdacc0
pcm0: <Intel (0x2882) (HDMI/DP 8ch)> at nid 4 on hdaa0
pcm1: <Intel (0x2882) (HDMI/DP 8ch)> at nid 5 on hdaa0
ugen1.1: <Intel EHCI root HUB> at usbus1
ugen0.1: <0x8086 XHCI root HUB> at usbus0
uhub0: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1
uhub1: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub1: 7 ports with 7 removable, self powered
uhub0: 8 ports with 8 removable, self powered
usbus1: port reset timeout
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <faspeed K5M-32G Q0111A> ACS-2 ATA SATA 3.x device
ada0: Serial Number SCRW17100903G0036
ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 512bytes)
ada0: Command Queueing enabled
ada0: 30029MB (61500000 512 byte sectors)
Trying to mount root from ufs:/dev/ufsid/5d04e1e471a7214d [rw]...
random: unblocking device.
CPU: Intel(R) Celeron(R) CPU  J1800  @ 2.41GHz (2416.74-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x30678  Family=0x6  Model=0x37  Stepping=8
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x41d8e3bf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,TSCDLT,RDRAND>
  AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM>
  AMD Features2=0x101<LAHF,Prefetch>
  Structured Extended Features=0x2282<TSCADJ,SMEP,ERMS,NFPUSG>
  Structured Extended Features3=0xc000400<IBPB,STIBP>
  VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID
  TSC: P-state invariant, performance statistics
em0: link state changed to UP
pflog0: promiscuous mode enabled
DUMMYNET 0 with IPv6 initialized (100409)
load_dn_sched dn_sched FIFO loaded
load_dn_sched dn_sched QFQ loaded
load_dn_sched dn_sched RR loaded
load_dn_sched dn_sched WF2Q+ loaded
load_dn_sched dn_sched PRIO loaded
load_dn_sched dn_sched FQ_CODEL loaded
load_dn_sched dn_sched FQ_PIE loaded
load_dn_aqm dn_aqm CODEL loaded
load_dn_aqm dn_aqm PIE loaded
em2: link state changed to UP
em1: link state changed to UP
ipfw2 (+ipv6) initialized, divert loadable, nat loadable, default to accept, logging disabled
IPFW: starting up interface tracker
em2: link state changed to DOWN
em2: link state changed to UP
em2: link state changed to DOWN
em2: link state changed to UP
em2: link state changed to DOWN
em2: link state changed to UP
em2: link state changed to DOWN
em2: link state changed to UP
em1: link state changed to DOWN
em1: link state changed to UP

System Logs:

[provels]

pfSense is truly an amazing project. Mine has actually accomplished time travel! ;)