Hello
I have a server with 10Gbps network card that located in Netherlands datacenter.
Recently I installed CentOS 8 on it. There is a problem with my network connection on this server.
In some other location (randomly) download speed from my server is very low (about 400 kbps).
I installed an Ubuntu 20.04 server edition by VMware workstation on the current server (network: bridge mode), and I used one of my IP on it.
Download speed by a server that is located at west of US from VM is good (20 MBytes by ipv4 and ipv6 using wget) while at a same time and condition, download speed from the host server (CentOS 8) is less than 400kbps.
My web server is Apache and a custom web server that is written by myself. And in client-side, I used wget. Also, there is no difference between ipv6 and v4, and there is no difference between HTTP and HTTPS.
I didn't install or config any rate limit. Also, I checked download speed while iptables was disabled: nothing changed.
Datacenter checked all of the routers and network configuration.
Also, I received some report from my customer that they have a problem with https by some ISPs.
How can I track and solve this problem?
10Gbps Network card problem
Re: 10Gbps Network card problem
My Network card is Interl 82599, I downloaded and updated intel driver but nothing changed :
Code: Select all
sudo lspci -v | grep -A 18 0a:00.0
0a:00.0 Ethernet controller: Intel(R) 82599 10 Gigabit Dual Port Network Connection (rev 01)
Subsystem: Intel(R) Ethernet Server Adapter X520-2
Physical Slot: 3
Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0
Memory at fa380000 (64-bit, prefetchable) [size=512K]
I/O ports at 6000 [size=32]
Memory at fa370000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Capabilities: [70] MSI-X: Enable+ Count=64 Masked-
Capabilities: [a0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number xx--xxx-xx
Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
Kernel driver in use: ixgbe
Kernel modules: ixgbe
0a:00.1 Ethernet controller: Intel(R) 82599 10 Gigabit Dual Port Network Connection (rev 01)
Code: Select all
modinfo ixgbe
filename: /lib/modules/4.18.0-147.8.1.el8_1.x86_64/updates/drivers/net/ethernet/intel/ixgbe/ixgbe.ko
version: 5.7.1
license: GPL
description: Intel(R) 10GbE PCI Express Linux Network Driver
author: Intel Corporation, <linux.nics@intel.com>
rhelversion: 8.1