10Gb Netzwerk erreicht nur 1Gb Geschwindigkeit

MHeymann · Friday at 20:31

Ich habe meinem Proxmox Server und meinem Desktop PC (Win10) jeweils eine 10G Netzwerkkarte (Intel 82599 X520-DA1) gegönnt. Verbunden sind die beiden Rechner über einen 2,5G Switch mit 2 10G SFP+ Slots (Tenda TEM2010X). Dazu habe ich 10G SFP+ DAC Kabel verwendet. In Proxmox habe ich die 10G Karte eingerichtet. Darüber hinaus ist der OnBord 2,5G Anschluss ebenfalls aktiv. Ich habe eine Linux Bridge vmbr0 für das 10G, und eine Bridge vmbr1 für das 2,5G Netz konfiguriert. So weit, so gut. Mein Problem ist, dass die Geschwindigkeit im 10G Netzwerk max. 1G beträgt. Wenn ich auf das 2,5G-Netz umstelle, passe ich die erwarteten Geschwindigkeiten an.
Kann mir da jemand weiterhelfen?

micneu · 2025-12-20T12:43:41+0100

schau mal mit welche geschwindigkeit ausgehandelt wurde, hier mein 10G Interface

Code:

root@pve2:~# ethtool enp47s0
Settings for enp47s0:
    Supported ports: [ TP ]
    Supported link modes:   100baseT/Full
                            1000baseT/Full
                            10000baseT/Full
                            2500baseT/Full
                            5000baseT/Full
    Supported pause frame use: Symmetric Receive-only
    Supports auto-negotiation: Yes
    Supported FEC modes: Not reported
    Advertised link modes:  100baseT/Full
                            1000baseT/Full
                            10000baseT/Full
                            2500baseT/Full
                            5000baseT/Full
    Advertised pause frame use: No
    Advertised auto-negotiation: Yes
    Advertised FEC modes: Not reported
    Speed: 10000Mb/s
    Duplex: Full
    Auto-negotiation: on
    Port: Twisted Pair
    PHYAD: 0
    Transceiver: internal
    MDI-X: Unknown
    Supports Wake-on: pg
    Wake-on: g
        Current message level: 0x00000005 (5)
                               drv link
    Link detected: yes
root@pve2:~#

MHeymann · 2025-12-20T13:28:24+0100

Moin,

root@proxmox:~# ethtool enp1s0
Settings for enp1s0:
Supported ports: [ FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: No
Supported FEC modes: Not reported
Advertised link modes: 10000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: No
Advertised FEC modes: Not reported
Speed: 10000Mb/s
Duplex: Full
Auto-negotiation: off
Port: Direct Attach Copper
PHYAD: 0
Transceiver: internal
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes

Das wird bei mir angezeigt.

Falk R. · 2025-12-20T23:15:20+0100

Das sieht OK aus, wie misst du denn den Netzwerkspeed?

MHeymann · 2025-12-21T13:24:21+0100

Moin, Ich habe die Geschwindigkeit mit iperf3 und PingTool getestet. Außerdem habe ich eine Große Datei auf das NAS kopiert (magere 160MB/s).

Falk R. · 2025-12-21T13:27:34+0100

MHeymann said:
Moin, Ich habe die Geschwindigkeit mit iperf3 und PingTool getestet. Außerdem habe ich eine Große Datei auf das NAS kopiert (magere 160MB/s).

Bei 160MB/s ist es ja schon mal mehr als 1 GBit. Was kommt mit iperf raus?
Wie ist dein Netzwerksetup, wenn du zwei Bridges hast? Wenn du auf beiden Bridges das selbe Subnetz verwendest, antwortet der Server vermutlich auf der 2,5G Karte.

MHeymann · 2025-12-21T16:26:04+0100

Accepted connection from 192.168.2.10, port 52613
[ 5] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 52614
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 135 MBytes 1.13 Gbits/sec
[ 5] 1.00-2.00 sec 132 MBytes 1.11 Gbits/sec
[ 5] 2.00-3.00 sec 128 MBytes 1.07 Gbits/sec
[ 5] 3.00-4.00 sec 113 MBytes 947 Mbits/sec
[ 5] 4.00-5.00 sec 110 MBytes 924 Mbits/sec
[ 5] 5.00-6.00 sec 119 MBytes 998 Mbits/sec
[ 5] 6.00-7.00 sec 121 MBytes 1.01 Gbits/sec
[ 5] 7.00-8.00 sec 116 MBytes 970 Mbits/sec
[ 5] 8.00-9.00 sec 156 MBytes 1.31 Gbits/sec
[ 5] 9.00-10.00 sec 141 MBytes 1.18 Gbits/sec
[ 5] 10.00-10.01 sec 1.04 MBytes 848 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.01 sec 1.24 GBytes 1.07 Gbits/sec receiver

auto lo
iface lo inet loopback

iface enp5s0 inet manual
#2,5G

iface enp3s0 inet manual
#10G

auto vmbr0
iface vmbr0 inet static
address 192.168.2.200/24
gateway 192.168.2.1
bridge-ports enp3s0
bridge-stp off
bridge-fd 0

Falk R. · 2025-12-21T16:29:48+0100

Du könntest mal mit mehreren Threads versuchen, falls die CPU bremst. Einfach den Schalter -P 8 für 8 Threads testen.
Wenn das nichts bringt, liegt das irgendwo im Netzwerk. Eventuell mal zum testen direkt zusammenstecken.

MHeymann · 2025-12-21T16:43:01+0100

Code:

Accepted connection from 192.168.2.10, port 55745
[  5] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 55746
[  8] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 55747
[ 10] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 55748
[ 12] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 55749
[ 14] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 55750
[ 16] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 55751
[ 18] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 55752
[ 20] local 192.168.2.200 port 5201 connected to 192.168.2.10 port 55753
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  57.4 MBytes   482 Mbits/sec                 
[  8]   0.00-1.00   sec  57.6 MBytes   483 Mbits/sec                 
[ 10]   0.00-1.00   sec  31.1 MBytes   261 Mbits/sec                 
[ 12]   0.00-1.00   sec  28.4 MBytes   239 Mbits/sec                 
[ 14]   0.00-1.00   sec  57.7 MBytes   484 Mbits/sec                 
[ 16]   0.00-1.00   sec  58.3 MBytes   489 Mbits/sec                 
[ 18]   0.00-1.00   sec  30.2 MBytes   253 Mbits/sec                 
[ 20]   0.00-1.00   sec  27.4 MBytes   230 Mbits/sec                 
[SUM]   0.00-1.00   sec   348 MBytes  2.92 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  58.5 MBytes   491 Mbits/sec                 
[  8]   1.00-2.00   sec  58.1 MBytes   488 Mbits/sec                 
[ 10]   1.00-2.00   sec  28.5 MBytes   239 Mbits/sec                 
[ 12]   1.00-2.00   sec  26.1 MBytes   219 Mbits/sec                 
[ 14]   1.00-2.00   sec  58.1 MBytes   488 Mbits/sec                 
[ 16]   1.00-2.00   sec  58.4 MBytes   490 Mbits/sec                 
[ 18]   1.00-2.00   sec  32.7 MBytes   275 Mbits/sec                 
[ 20]   1.00-2.00   sec  30.3 MBytes   254 Mbits/sec                 
[SUM]   1.00-2.00   sec   351 MBytes  2.94 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  57.3 MBytes   481 Mbits/sec                 
[  8]   2.00-3.00   sec  57.8 MBytes   485 Mbits/sec                 
[ 10]   2.00-3.00   sec  29.6 MBytes   249 Mbits/sec                 
[ 12]   2.00-3.00   sec  29.7 MBytes   249 Mbits/sec                 
[ 14]   2.00-3.00   sec  58.7 MBytes   493 Mbits/sec                 
[ 16]   2.00-3.00   sec  58.7 MBytes   493 Mbits/sec                 
[ 18]   2.00-3.00   sec  29.7 MBytes   249 Mbits/sec                 
[ 20]   2.00-3.00   sec  29.6 MBytes   248 Mbits/sec                 
[SUM]   2.00-3.00   sec   351 MBytes  2.95 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  57.4 MBytes   482 Mbits/sec                 
[  8]   3.00-4.00   sec  57.8 MBytes   485 Mbits/sec                 
[ 10]   3.00-4.00   sec  31.9 MBytes   267 Mbits/sec                 
[ 12]   3.00-4.00   sec  29.5 MBytes   247 Mbits/sec                 
[ 14]   3.00-4.00   sec  58.8 MBytes   493 Mbits/sec                 
[ 16]   3.00-4.00   sec  58.1 MBytes   487 Mbits/sec                 
[ 18]   3.00-4.00   sec  29.9 MBytes   251 Mbits/sec                 
[ 20]   3.00-4.00   sec  27.4 MBytes   230 Mbits/sec                 
[SUM]   3.00-4.00   sec   351 MBytes  2.94 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  58.8 MBytes   494 Mbits/sec                 
[  8]   4.00-5.00   sec  58.2 MBytes   488 Mbits/sec                 
[ 10]   4.00-5.00   sec  31.1 MBytes   261 Mbits/sec                 
[ 12]   4.00-5.00   sec  30.5 MBytes   256 Mbits/sec                 
[ 14]   4.00-5.00   sec  58.5 MBytes   491 Mbits/sec                 
[ 16]   4.00-5.00   sec  58.6 MBytes   492 Mbits/sec                 
[ 18]   4.00-5.00   sec  28.5 MBytes   239 Mbits/sec                 
[ 20]   4.00-5.00   sec  27.7 MBytes   233 Mbits/sec                 
[SUM]   4.00-5.00   sec   352 MBytes  2.95 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   5.00-6.00   sec  57.5 MBytes   482 Mbits/sec                 
[  8]   5.00-6.00   sec  58.0 MBytes   487 Mbits/sec                 
[ 10]   5.00-6.00   sec  28.1 MBytes   236 Mbits/sec                 
[ 12]   5.00-6.00   sec  31.8 MBytes   267 Mbits/sec                 
[ 14]   5.00-6.00   sec  58.8 MBytes   493 Mbits/sec                 
[ 16]   5.00-6.00   sec  59.1 MBytes   496 Mbits/sec                 
[ 18]   5.00-6.00   sec  27.8 MBytes   233 Mbits/sec                 
[ 20]   5.00-6.00   sec  31.4 MBytes   264 Mbits/sec                 
[SUM]   5.00-6.00   sec   353 MBytes  2.96 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   6.00-7.00   sec  59.0 MBytes   495 Mbits/sec                 
[  8]   6.00-7.00   sec  58.8 MBytes   493 Mbits/sec                 
[ 10]   6.00-7.00   sec  25.7 MBytes   215 Mbits/sec                 
[ 12]   6.00-7.00   sec  33.3 MBytes   280 Mbits/sec                 
[ 14]   6.00-7.00   sec  58.8 MBytes   493 Mbits/sec                 
[ 16]   6.00-7.00   sec  58.5 MBytes   490 Mbits/sec                 
[ 18]   6.00-7.00   sec  25.9 MBytes   217 Mbits/sec                 
[ 20]   6.00-7.00   sec  33.4 MBytes   280 Mbits/sec                 
[SUM]   6.00-7.00   sec   353 MBytes  2.96 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   7.00-8.00   sec  58.1 MBytes   487 Mbits/sec                 
[  8]   7.00-8.00   sec  57.7 MBytes   484 Mbits/sec                 
[ 10]   7.00-8.00   sec  27.7 MBytes   232 Mbits/sec                 
[ 12]   7.00-8.00   sec  34.3 MBytes   288 Mbits/sec                 
[ 14]   7.00-8.00   sec  58.7 MBytes   493 Mbits/sec                 
[ 16]   7.00-8.00   sec  58.8 MBytes   493 Mbits/sec                 
[ 18]   7.00-8.00   sec  25.3 MBytes   212 Mbits/sec                 
[ 20]   7.00-8.00   sec  31.8 MBytes   267 Mbits/sec                 
[SUM]   7.00-8.00   sec   352 MBytes  2.96 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   8.00-9.00   sec  57.6 MBytes   483 Mbits/sec                 
[  8]   8.00-9.00   sec  57.3 MBytes   480 Mbits/sec                 
[ 10]   8.00-9.00   sec  29.8 MBytes   250 Mbits/sec                 
[ 12]   8.00-9.00   sec  27.0 MBytes   226 Mbits/sec                 
[ 14]   8.00-9.00   sec  58.2 MBytes   488 Mbits/sec                 
[ 16]   8.00-9.00   sec  57.6 MBytes   483 Mbits/sec                 
[ 18]   8.00-9.00   sec  34.0 MBytes   285 Mbits/sec                 
[ 20]   8.00-9.00   sec  31.1 MBytes   261 Mbits/sec                 
[SUM]   8.00-9.00   sec   352 MBytes  2.96 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   9.00-10.00  sec  56.2 MBytes   471 Mbits/sec                 
[  8]   9.00-10.00  sec  57.6 MBytes   484 Mbits/sec                 
[ 10]   9.00-10.00  sec  30.4 MBytes   255 Mbits/sec                 
[ 12]   9.00-10.00  sec  28.6 MBytes   240 Mbits/sec                 
[ 14]   9.00-10.00  sec  59.5 MBytes   499 Mbits/sec                 
[ 16]   9.00-10.00  sec  58.3 MBytes   489 Mbits/sec                 
[ 18]   9.00-10.00  sec  31.9 MBytes   267 Mbits/sec                 
[ 20]   9.00-10.00  sec  30.0 MBytes   252 Mbits/sec                 
[SUM]   9.00-10.00  sec   353 MBytes  2.96 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]  10.00-10.01  sec   530 KBytes   498 Mbits/sec                 
[  8]  10.00-10.01  sec   526 KBytes   494 Mbits/sec                 
[ 10]  10.00-10.01  sec   256 KBytes   241 Mbits/sec                 
[ 12]  10.00-10.01  sec   302 KBytes   283 Mbits/sec                 
[ 14]  10.00-10.01  sec   520 KBytes   488 Mbits/sec                 
[ 16]  10.00-10.01  sec   532 KBytes   500 Mbits/sec                 
[ 18]  10.00-10.01  sec   227 KBytes   214 Mbits/sec                 
[ 20]  10.00-10.01  sec   263 KBytes   247 Mbits/sec                 
[SUM]  10.00-10.01  sec  3.08 MBytes  2.96 Gbits/sec                 
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.01  sec   578 MBytes   485 Mbits/sec                  receiver
[  8]   0.00-10.01  sec   579 MBytes   486 Mbits/sec                  receiver
[ 10]   0.00-10.01  sec   294 MBytes   246 Mbits/sec                  receiver
[ 12]   0.00-10.01  sec   299 MBytes   251 Mbits/sec                  receiver
[ 14]   0.00-10.01  sec   586 MBytes   491 Mbits/sec                  receiver
[ 16]   0.00-10.01  sec   585 MBytes   490 Mbits/sec                  receiver
[ 18]   0.00-10.01  sec   296 MBytes   248 Mbits/sec                  receiver
[ 20]   0.00-10.01  sec   300 MBytes   252 Mbits/sec                  receiver
[SUM]   0.00-10.01  sec  3.44 GBytes  2.95 Gbits/sec                  receiver

Falk R. · 2025-12-21T16:45:54+0100

Da kommen wenigstens 3 GBit. Die Netzwerkkarte scheint OK zu sein.
Ob es jetzt an der CPU, den PCI Lanes oder dem Switch liegt, weiß keiner. Dazu müsste man die komplette Hardware kennen.

MHeymann · 2025-12-21T17:32:46+0100

Meine Hardware:
Mainboard ASRock B550M Steel Legend, AMD Ryszen 5 5600G, 32GB DDR4-3200 RAM, Lexar NM 710 1TB M.2280 PCIe 4.0 und 2x 4TB WD Red für's NAS

Netzwerkkarte jeweils:

beisser · 2025-12-21T17:57:34+0100

das ist eine pcie 2.0 x8 karte. es könnte sein, dass die zu wenige lanes hat. ich was für einem slot ist die denn drin?

MHeymann · 2025-12-21T18:10:18+0100

PCIE3 (PCIe 3.0 x16 slot) is used for PCI Express x4 lane width graphics cards

beisser · 2025-12-21T18:39:53+0100

das heisst die karte läuft maximal mit pcie 2.0 x4.
sollte trotzdem schnell genug sein für einen 10Gbit link.
definitiv schneller als 3 gbit. das sollte es also nicht sein.

mach mal ein lspci -vvv das sollte dir massig informationen ausgeben unter anderem mit welche pcie-link die karte wirklich läuft.

bei meiner wifi-karte sieht man hier z.b. das hier:

Code:

  LnkCap: Port #0, Speed 16GT/s, Width x1, ASPM L1, Exit Latency L1 <64us
                        ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
  LnkCtl: ASPM L1 Enabled; RCB 64 bytes, LnkDisable- CommClk+
                        ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
  LnkSta: Speed 8GT/s (downgraded), Width x1
                        TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-

die karte kann 16 GT/s (pcie4 x 1), läuft aber nur degraded mit 8GT/s (pcie3 x 1).

irgendsowas kanns bei dir auch sein, daher würde mich das output interessieren.

MHeymann · 2025-12-21T18:53:16+0100

03:00.0 Ethernet controller: Intel Corporation 82599 10 Gigabit Network Connection (rev 01)
Subsystem: Beijing Sinead Technology Co., Ltd. 82599 10 Gigabit Network Connection
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 32
IOMMU group: 1
Region 0: Memory at 7ff0300000 (64-bit, prefetchable) [size=512K]
Region 2: I/O ports at e000
Region 4: Memory at 7ff0580000 (64-bit, prefetchable) [size=16K]
Expansion ROM at fce00000 [disabled] [size=512K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Address: 0000000000000000 Data: 0000
Masking: 00000000 Pending: 00000000
Capabilities: [70] MSI-X: Enable+ Count=64 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00002000
Capabilities: [a0] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0W
DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 256 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x8, ASPM L0s, Exit Latency L0s unlimited
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x4 (downgraded)
TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR-
10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
FRS- TPHComp- ExtTPHComp-
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
AtomicOpsCtl: ReqEn-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1-
EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
Retimer- 2Retimers- CrosslinkRes: unsupported
Capabilities: [e0] Vital Product Data
Unknown small resource type 06, will not decode more.
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
HeaderLog: 00000000 00000000 00000000 00000000
Capabilities: [140 v1] Device Serial Number 1a-4b-24-ff-ff-ab-2c-6d
Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [160 v1] Single Root I/O Virtualization (SR-IOV)
IOVCap: Migration- 10BitTagReq- Interrupt Message Number: 000
IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy- 10BitTagReq-
IOVSta: Migration-
Initial VFs: 64, Total VFs: 64, Number of VFs: 0, Function Dependency Link: 00
VF offset: 384, stride: 2, Device ID: 10ed
Supported Page Size: 00000553, System Page Size: 00000001
Region 0: Memory at 0000007ff0480000 (64-bit, prefetchable)
Region 3: Memory at 0000007ff0380000 (64-bit, prefetchable)
VF Migration: offset: 00000000, BIR: 0
Kernel driver in use: ixgbe
Kernel modules: ixgbe

beisser · 2025-12-21T18:55:32+0100

deine karte sagt LnkSta: Speed 5GT/s, Width x4 (downgraded)
das ist genau das, was ich erwarten würde. ein pcie 2.0 x4 link

der sollte definitiv schnell genug sein.
jetzt müsste man den fehler woanders suchen.
könnte der switch hier evtl bremsen? von wo nach wo machst du denn iperf? und welchen link hat die andere seite?

MHeymann · 2025-12-21T18:55:51+0100

Wie kann ich das als Code Formatieren?

beisser · 2025-12-21T18:57:28+0100

moment, das war jetzt das output von dem proxmox-server korrekt?

wo ist denn die karte in deinem windows pc verbaut? also welches board und welcher slot?

MHeymann · 2025-12-21T18:58:14+0100

iperf Sever läuft auf dem Proxmox Host. Der Client auf meinem Desktop Rechner. Welcher link???

beisser · 2025-12-21T18:58:31+0100

wenn du einen text schreibst gibt es oben eine leiste:

10Gb Netzwerk erreicht nur 1Gb Geschwindigkeit

New Member

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10Gb SFP PCI-e Network Card, Intel 82599(X520-DA1)​

Tenda 2.5 Gbit Switch mit 8X 2.5G Ports & 2X 10G SFP+​

10G SFP+ DAC Kabel 2-Meter(6.5ft), Twinax SFP+ Kabel​

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10Gb SFP PCI-e Network Card, Intel 82599(X520-DA1)

Tenda 2.5 Gbit Switch mit 8X 2.5G Ports & 2X 10G SFP+

10G SFP+ DAC Kabel 2-Meter(6.5ft), Twinax SFP+ Kabel