Questions tagged [network-speed]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
0answers
28 views

Transfer speed drops, resolved by pinging router

I have quite a peculiar issue going on with my network. I have a Synology NAS attached to a Cisco RVS4000 router, with IPS and firewall disabled, which I use to transfer files to from my Linux ...
-1
votes
2answers
42 views

Is it possible to have high internet speed with low bandwidth?

I just came to understand that the bandwidth is just the difference between the highest and the lowest frequency of transmission. And i also have and understanding that higher the frequency ==> ...
-2
votes
3answers
73 views

I live in Australia, how is it that Stack Exchange is so fast without using any CDN?

I had a look at the Stack Exchange Servers: https://meta.stackexchange.com/questions/10369/which-tools-and-technologies-are-used-to-build-the-stack-exchange-network Seems they only have two data ...
0
votes
3answers
56 views

Internet speed required to use Microsoft Teams from Japan to the USA [closed]

I really hope this is the right place to ask (this is my first question here so please go easy). I have a great opportunity to go to work remotely (HR signed off on it) from Japan. I have a place to ...
0
votes
0answers
33 views

1gb vs 10gb uplink in terms of TTFB

I am about to setup a new dedicated server, I have the option of 1gb vs 10gb uplink with a considerable price difference. I do only have 10 domains on this sever and traffic is not huge. However, on ...
0
votes
3answers
52 views

Accelerate loading time in others countries by installing some kind of VPN? (What is it called?) [closed]

My servers are hosted in France (OVH) and my users are mainly from France. I am starting to have more and more users in Asia and North America, but some of them have huge speed problems : more than 3-...
0
votes
2answers
126 views

Are we still limited by TCP Window Size when we want to fully utilize bandwidth from far away servers? [closed]

According to this website, as soon as round-trip time is increased, we lose a bit of our real-time capacity throughput to distant servers using default TCP Window size of 64KB. My network bandwidth is ...
0
votes
0answers
10 views

Is a reverse proxys network speed limiting the connected servers?

I am just curious: If I get a server for use as a nginx reverse proxy that has only like a 100mb connection to the internet, will this effect the download speed of my 500mb connection nextcloud server ...
0
votes
1answer
45 views

Self Hosted Speedtest Command Line Script

I would like to write my own local speedtest script with a server script for listening to connections. To try and not duplicate my efforts, I haven't found much while searching. I can find lots of ...
2
votes
2answers
3k views

Slow network speed on ESXi hosts

I have been dealing with this problem for about half a year (had the luxury of time) and hadn't managed to crack it, so I finally resigned and came over here to ask for help from others not just ...
-3
votes
1answer
24 views

i want to visualize myself about bandwidth of internet [closed]

as we know bandwidth is just a way through which data flows.20 Mbps internet means 20 mega bits per second and 40 Mbps means 40 mega bits per second.i guess 20 Mbps means 20 Mb of data is retrieved in ...
0
votes
1answer
51 views

What's the direction of speedtest download/upload? [closed]

What's the direction of download and upload in speedtest? The Server is Hong Kong STC, my local is: 12.34.156.228. When I test the speed, you can see the DOWNLOAD 28.38Mbps and UPLOAD 22.77Mbps. I ...
-1
votes
1answer
697 views

Windows reporting 1Gbps but file transfer speed only 100Mbps

Things I checked: Windows adapter status confirms 1 Gbps connection on both PCs Removed other PCs connected to the network Both PCs are connected to TP-Link Archer A6 Isolated HDD speed by using ...
0
votes
0answers
33 views

openvpn clustering and throttle network speed

I am currently using Ubuntu for an OpenVPN server and it is working well. Each connected device can get an IP Address from the DHCP provided by the OpenVPN server. But for our project, is there a way ...
0
votes
1answer
342 views

Why is there a difference in speed of forward and reverse traffic over 10 G network in iperf tool

I have a 10G network setup between my two servers (say, Server1 and Server2) and I'm using iperf tool to measure the bandwidth of the network. Here are test cases that I performed, Test Case 1: (...
1
vote
1answer
45 views

Why is upload way faster and more alternating in speed than download on local machine

I am writing a speed test to determine browser-server connection speed (js+php but I don't think it matters). I send a bunch of data-packages in different sizes and measure the time they need to reach ...
0
votes
1answer
284 views

What does a “Blended IP” mean in terms of speed?

I'm getting a server colocated at a facility and they stated the internet speed will be 10 Mbps Blended IP on 100 Mbps Network Port. What does blended IP mean?
1
vote
0answers
469 views

socat tun device very low throughput

I was tinkering around with socat and tried to use socat for creating a TUN device for tunneling between two debian stretch servers. However, throughput seemed very low and comparing with iperf ...
0
votes
1answer
77 views

Why do my P.L.Cs (Power line converters) devide the speed by two?

If I directly connect to my 100MB router with a CAT.5e cable, I get these results : $ speedtest --simple Ping: 8.617 ms Download: 92.54 Mbit/s Upload: 93.90 Mbit/s $ ethtool eth0 Settings for eth0: ...
-1
votes
1answer
21 views

Network share slow down over time

We have a Mac mini 2018 which share the content of a Raid NAS and after like 6-7 days the read/write speed of the connected user drop down, what would be a good way to investigate what is the problem ?...
0
votes
0answers
391 views

Slow file transfer speed untill network service restart in CentOS

I have a Windows Server VM which connects to my Storage VMs running CentOS in another Data Centre over SFTP and FTP. The uplink between the servers are all 10Gbps and more and both VMs are ESXi ...
19
votes
6answers
9k views

Why the discrepancy between Speedtest and Wget?

My customer complains about low internet speeds. When measured with Speedtest.net speeds are acceptable. Periodic measured downloads are 10% to 30% of the nominal speed. I cannot explain that. Some ...
0
votes
0answers
921 views

OpenVPN Connection very slow. Server located in Hong Kong, and Client Desktop is in New York

I have a OpenVPN vps server in Hong Kong. The specs is just 1 Core 2.2ghz CPU and 1GB of RAM. The connection is a 100mbit. But when I connect from my desktop in NY, my speed is only 1-2mbit only. I'm ...
-2
votes
1answer
21 views

Whether the Speed Auto can have a network speed reach to the switchport top?

My Juniper EX4300 Switch ge-0/0/42 switchport configuration is bellow: admin@1409A# run show interfaces ge-0/0/42 Physical interface: ge-0/0/42, Enabled, ...
1
vote
0answers
162 views

What factor impact network speed between VM significantly?

There is question about network between different server,but i got a different situation. I have two VM in a server,and I tried to test maximum network speed between two VM. OS : CentOS VSwitch ...
1
vote
0answers
223 views

Server Promoted to Domain Controller causes high ping times

We have recently (couple of months) been having issues with our internet, after dealing with our provider who states it is not their issue yet my boss and owner of the company is certain it is ...
0
votes
1answer
71 views

Bandwidth to hosts abroad [duplicate]

I have a server with 1 Gbps uplink. Testing gives me a download/upload speed of approx 600 Mbps to servers nearby in Europe, and 100 Mbps to servers in US. I want to host a server and I need to know ...
1
vote
1answer
203 views

Transfer speed to network share drops

I have an older HP Proliant ML350 G6 server with 1 x Xeon E5504 (2.0 ghz) and 8 gb ram. If I copy a large file (over 2 gb) to it from a windows 10 workstation, after about 1.5 gb the transfer speed ...
1
vote
1answer
49 views

Building reliable internet speed test tools

I'm interested in building a command-line speed test tool similar to the one used here. I started using it in a cron job to automatically check and record speeds at different times when we started ...
1
vote
1answer
40 views

Cheapest solution to monitor gigabit internet connection performance [closed]

I want to perform speedtest-cli performance tests of the internet connection of a fibre connection which is advertised to 1Gbps at regular intervals, say every hour, for one year. I have been looking ...
1
vote
0answers
15 views

Real World Speed Test via public Web Pages

Warning: I know up front that this is a question asking both for resources and opinions. Ideally, feedback/answers could address the spirit of the question, rather than shout it down. By spirit of the ...
2
votes
2answers
634 views

DRBD weird speed dips

couple of weeks ago I made a test setup for DRBD on couple of servers. The speed was fixed 90MB/800Mb as per my config for initial sync. Now I have reinstalled the OS (CentOS 7.4) to do final install ...
0
votes
1answer
226 views

What factors affect the speed of a VPN connection?

What hardware/software factors affect the speed of a VPN connection between two computers (1 Gbps network cards) on a lan with just a 1 Gbps switch between them ? More vague : Is it possible to ...
4
votes
0answers
193 views

Not sure I really get 10 Gbit between our servers on the 10 Gbit network

We have a 3 Unix (1 Ubuntu 2 Redhat) servers connected via their 10 Gbit network cards to a 10 Gbit switch (our IT person made sure we got the correct cables). We experience some odd behaviour when ...
8
votes
2answers
2k views

What type of hardware is required for a Gigabit connection?

Just in case the question I am asking is unclear or hard to understand, I am basically asking whether or not the type of hardware in a machine (such as a router or server) matters when using a gigabit ...
1
vote
0answers
101 views

Fibre Optic port moving to 1000Mb/s eventhough it is not in the supported link mode

In my Fibre Optic device (Linux 2.6.27, LXT971A PHY Transceiver), connection to the port is lost intermittently. While debugging with ETHtool, the following observation was observed: Settings for ...
0
votes
0answers
428 views

Same ethernet cards, same firmware, same drivers … different Advertising Mode

I have a strange issue. Having same cards, same drivers and same updated version of ethtool on 2 different OS, (XenServer7.* and centOS7.3). if I run on centOS ethtool on the card I get: Supported ...
0
votes
2answers
975 views

What's the operation about iperf udp

I'm trying to doing some bandwidth test by run iperf on my device, My Network Max Bandwith is 100 Mbps (test by speed test CLI - https://github.com/sivel/speedtest-cli) And I ran the iperf UDP ...
1
vote
1answer
239 views

How to prioritize my network traffic in Azure?

I created two VMs on Azure, one at Australia East and the other at Brazil South. The two VMs are of classic model and run Ubuntu 16.04. I created endpoints on these VMs and ran a server-client program ...
0
votes
1answer
2k views

How do I send all traffic generated by a command through a specific interface? Or, speed test for specific interface?

I am writing a script that basically scans OpenVPN servers using the openvpn client. By scanning I mean it checks whether if the server is accepting connections or not by attempting a connection, ping ...
1
vote
2answers
1k views

Bandwidth vs Uplink Port Speed

If a dedicated server has - 1. 1Gbps uplink port speed 2. 1Mbps unmetered bandwidth Under what circumstances will bandwidth be a limiting factor for serving requests and under what circumstances ...
0
votes
0answers
70 views

inconsistent speeds from different services. Mainly speedtest.net

I have had a few dedicated servers from online.net and they have all been great. But recently I have found issues with my connections on my new server. It is a Dedibox MD SSD 2015 Gen2 (Ubuntu 16.04)....
0
votes
2answers
781 views

What's the caculation for network speed reported with sar-n DEV output?

I am confused about the network speed outputs: If the report says: sar -n DEV 1 1 Linux 2.6.18-194.el5PAE (dev-db) 03/26/2011 _i686_ (8 CPU) 01:11:13 PM IFACE rxpck/s txpck/s ...
1
vote
0answers
861 views

Outbound requests from PHP 7 (but not PHP 5) are very slow

I have both PHP 7.0 and PHP 5.6 installed on my server (it's a dedicated server with plenty of resources), and outbound requests are very slow when made through PHP 7, but not when made through PHP 5. ...
1
vote
2answers
2k views

Cisco Router or Switch Limiting Internet Speed (Huge Slowdown)

I work in a very small office where we have approximately 5 office desktops wired to the internet through what appears to be CAT5 mixed with CAT5e wiring. The wires flow in this order: Desktops > ...
1
vote
1answer
172 views

Why is there a 40 Gigabit Ethernet (40GbE) standard in IEEE 802.3?

I've been wondering, why is there a 40 Gigabit Ethernet standard? Is there a reason why it's 40GbE and not 50GbE or why is there any step in between from 10GbE to 100GbE? Unfortunately my own ...
1
vote
0answers
441 views

HTTPS/HTTP2 slower over network but faster locally

I was asked to setup a newer, optimised tile server that provides tiles over HTTPS (Google has disabled some map APIs when the page is not HTTPS) and it seemed to be the right thing to do to also use ...
-1
votes
2answers
14k views

How to find unix eth port link speed

I have small issue with my openwrt router. I want to know link-speed in format 10M,100M, 1000M, etc. or 10BaseT .. but I can't find it in /proc or with "ip" command also "dmesg" doesn't provide ...
3
votes
2answers
4k views

FTP transfers slow on a long fat pipe

We've recently gotten new internet - 100Mb/s fibre - and have been complaining bitterly to our new ISP about transfer speeds to some FTP servers in the USA (300ms away). To one server in particular, ...
-3
votes
1answer
7k views

Difference between 1.0 Gbps & Auto Negotiation [closed]

I am downloading a huge file and was wondering on how to boost my Ethernet speed. I found this option called "Speed & Duplex" And there were a few options. Two of them were 1) 1.0 Gbps Full ...