Questions tagged [bandwidth]

For questions about bandwidth where bandwidth is the amount of data that can be carried from one point to another in a given time period (usually a second). This tag is suitable when your question is about network congestion, speed, throughput and of course low bandwidth problems.

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44 views

why we need to make the size of our burst 2 times the product of bandwidth and delay? [duplicate]

A textbook which says: The bandwidth-delay product defines the number of bits that can fill the link. This measurement is important if we need to send data in bursts and wait for the acknowledgment ...
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0answers
179 views

Cisco ASA 5512 one download blocks all others until download finishes [closed]

My company has a 50 Mbps Down/Up connection. I just migrated from a PIX 515E to an ASA 5512. Previously, one user could download a large file from the internet and block all other users from accessing ...
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1answer
236 views

What bits does iftop count when calculating and displaying the network bandwidth [closed]

I've googled and read, and googled and read. Everything I've found makes reference to it counting IP packets, but it obviously displays Bits/Byte and packets come all manner of size. What bits does ...
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1answer
551 views

Setup a server for traffic monitoring using wireshark in bridge mode [closed]

i was able to get a hold of a server with 2 ethernet ports to start learning about traffic inspection using wireshark. The server and software are setup. I would like to know how i can configure the ...
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1answer
342 views

Load Balance with TL-R470T+

I have the TL-R470T+ and i have two different internet connections from two different ISPs. One 39 Mbps and the other 5 mbps and i want to get 44 mbps. When i installed the router on the speedtest ...
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0answers
209 views

What could be causing slow bandwidth on a Cisco 2801 ADSL connection

I have a generic ADSL router that supports dual bridge and pppoe mode. I have an ADSL account configured on the ADSL router, and have the same ADSL account configured as a pppoe connection on a cisco ...
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0answers
2k views

Get interface input/output rate statistics over SNMP from Huawei switch

We need to monitor the download/upload bandwidth on interfaces on Huawei S5300 switches, and we need to do it with a specific monitoring system. This system can get information from a switch using ...
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1answer
3k views

How to limit the internet bandwidth to specific department in my company, using a Cisco Router?

I have this case: In my Company we have 2 Internet Access in production R1-A router and R2-B router they are both in separate networks, R2-B have the highest priority which it use to Call Center. ...
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2answers
28 views

what happend when inbound traffics over the limit of bandwidth? [closed]

Sorry for my English. Let's say there is a chat server in AWS and it has bandwidth limit like 5Gbps. Someday, massive user comes and it spikes a lot of traffic in a second and finally it overs 5Gbps ...
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4answers
90 views

why we make each burst of data 2 times the product of bandwidth and delay?

Below is from my textbook: if we need to send data in bursts and wait for the acknowledgment of each burst before sending the next one. To use the maximum capability of the link, we need to make the ...
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1answer
4k views

GNS3: performance tests using iperf3? [duplicate]

I'm running some performance tests on GNS3 (I know I shouldn't, but it is not until Friday that I will have the college lab available), and I'm trying to compare real BW or "speed" and ...
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2answers
719 views

Meaning of 2 Mbps

I read this article - https://rescomp.stanford.edu/~cheshire/rants/Latency.html I have a 2 Mbps private link. This means that I can transfer at the rate of 2*10^6 bits per second ~= 250*10^3 bytes per ...
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1answer
30 views

Bandwidth limit between CPE and Provider Equipment

I have 4 different WAN links for redundancy one of them is 15mbps MPLS and the other ones are 30mbps Internet , 50 mbps Internet and 10 mbps MPLS , the way that it is set up is that we have load ...
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1answer
1k views

How to calculate throughput in Kpps? [closed]

I'm going to buy a firewall.For the first step i must calculate my network throughput in Kpps. I'm using Mikrotik routerOs. Mikrotik has bandwidth test that it shows traffic in Kbps. How do I find my ...
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2answers
1k views

Why are downloads slower if the server is far away?

I know that because of the distance the data has to travel, and light only being so fast, the connection will take longer, and the first bit should arrive slower than downloading from a server which ...
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2answers
47 views

How could the line rate of T1 be 1.544 Mbps?

T1 signal is the output of a 24-to-1 digital multiplexer whose inputs are 64 kbps each (plus one framing bit). But a multiplexer is simply an electronic device that selects between several inputs and ...
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1answer
68 views

Estimating bandwidth requirements and productivity gain from traffic data

My small office has a 30Mbit/s internet connection, on which two or three people work. We could get twice the bandwidth at a substantial cost. I imagine a bandwidth upgrade would slightly improve ...
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1answer
121 views

Network Requirements for Video Streaming

My client is thinking about implementing a cloud-hosted video streaming solution for their company. Ideally they want to be able to have 3k+ users watch a video at the same time and have it be ...
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2answers
100 views

Bandwidth usage in accessing Local file server with external URL

I have a file server in my local network with publicly accessible web url e.g. example.test-server.com Local IP for the server is 192.168.1.10 The local iP of my pc is 192.168.1.11 Now, we have ...
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1answer
24 views

Virtual Circuits in a narrow band network

I know that in a broadband network a virtual circuit is established like in an X.25, frame relay and ATM. Is there a virtual circuit established in narrow band network and if yes then how is it ...
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1answer
48 views

Monitor individual device traffic on Cisco RV042

I am able to monitor Total Traffic consumption on the Cisco RV042 router using SNMP and PRTG. I want to be able to monitor traffic used by each device on my net
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1answer
57 views

Leased 1GB fibre firewall with multiple IP LANS & tenants [closed]

I’m in desperate need of some unbiased advice and suggestions. Everyone I ask seems to want to sell me a £2-5,000 firewall appliance and £1500+ per year of support/licencing. I have a 1gb leased ...
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1answer
247 views

different between Bandpass chanel and Baseband channel? [closed]

What is the different between Band-pass Chanel and Base-band channel? can we convert analog data to analog signal using base-band signal?
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1answer
961 views

Frame size, propagation delay and bandwidth relationship [closed]

I found in some forum this formula for calculating the frame size in function of the propagation delay and the bandwidth : frame size >= 2*(propagation delay)*bandwidth, I could not however find ...
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1answer
408 views

Limit bandwidth of a particular application [closed]

How to limit the connection (upload and download) speed of a particular application (e.g., a particular exe file) in accessing the internet? Apparently, it is easy to allow or block completely using ...
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2answers
1k views

How can I limit bandwidth usage of a network interface? [closed]

I used a cluster with infiniband 40Gb switch. For the sake of testing my application program, I need to measure the performance at a network environment with lower communication speed such as 1Gbps ...
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2answers
80 views

Network report integrated with Active Directory or Users

How can i take network report of bandwidth consumption that integrated with AD or users? I have ASA 5506 and configured netflow 9 with PRTG, I can see the source IP and Destination IPs, Is there any ...
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1answer
156 views

Cisco IOS limit bandwidth to domain (wildcard) [closed]

I'm fairly new to Cisco IOS configuration. I have an 800-series router and, long story short, I'd like to limit the incoming and outgoing bandwidth allocated to some iCloud servers to prevent ...
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4answers
2k views

MikroTik bandwidth management [closed]

I have a 16mbps/1mbps speed for Internet access. When a user downloads a file at full speed or torrent, other users can't browse because connections time out. Is it possible to share bandwidth ...
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1answer
160 views

bandwidth vs latency - question on stuart cheshire paper

I am trying to get my grips around bandwidth and latency. I have read Stuart Cheshire's essay, however, there are a couple of paragraphs that I cannot understand. Paraphrasing: Assume we are to ...
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1answer
39 views

Why are download and upload bandwidths different? [closed]

If I take any internet connection speed test (e.g. https://www.speedtest.net/) at home then a report is provided which shows different download and upload speeds. Why is this? How is downstream and ...
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1answer
53 views

Finding the TCP throughput for intermediate switches along a transmission path

I am working on network simulation where my network should be as close from real-world conditions as possible. I am coding a function that calculates the latency and bandwidth of between switch A and ...
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1answer
183 views

What would be faster between a consumer 1gbps symmetrical Internet connection and a 1gbps data center link to the Internet? [closed]

Say I've got: a home server with a consumer fiber optic Internet connection via FTTH nearing 1gbps downstream/upstream a dedicated server with the exact same hardware specifications in a data center ...
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1answer
30 views

What would the bandwidth be while transferring from a machine with a 2.5 Gbps NIC to a machine with a 10 Gbps NIC?

I have two machines connected via a managed network switch capable of supporting 10 Gbps bandwidth. What would the bandwidth be if I transfer data from machine 1 with a 2.5 Gbps network card to ...
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1answer
77 views

What is the bandwidth (in Gbps) of a today Tv telecommunication satellite? [closed]

I'm impressed on the amount of channels of a television satellite. In Europe, for example, Hotbird 13 supply 1000+ television channel, Astra 19.2 and Astra 28 others 2000 or 3000 channels, some in HD....

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