The bandwidth tag has no wiki summary.
0
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3answers
25 views
How test dedicated bandwidth - 10 Mbps
Level 3 has recently installed a dedicated internet conection (10 Mbps 1:1) in my company.
When I use speedtest.net or any other test website, speed values are vey poor (1.56 for download, and 2.39 ...
-1
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1answer
33 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 ...
-1
votes
1answer
70 views
Is the bandwidth of cable constrained by its length?
If a certain cable has a bandwidth of 10 mbps, that means in can contain 10 megabytes of data inside it at any given second.
However, does this assume some standard length?
The analogy I've been ...
0
votes
1answer
54 views
Networking, dedicating bandwidth to specific networks
I need to configure a cisco router where 5mb will be split between 2 separate networks one for voice 1mb and one for data 4mb with voice being the main priority. The only way i can think of doing it ...
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0answers
25 views
How does xDSL line transfer simultaneous data?
In xDSL line, < 4KHz is reserved for dedicated POTS line, a small fraction of bandwidth(>25KHz and <150KHz) is reserved for Uplink and the rest of the bandwidth is for Download link.I know that ...
2
votes
1answer
76 views
Rate limiting specific IP adresses on Cisco 2960S and 2960X series
We are looking into rate limiting some specific IP addresses down to 5mbit for various bandwidth reasons.
Is is possible to rate limit ingress and egress traffic for specific IP addressees on the ...
0
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0answers
50 views
Equal WAN bandwidth for all LAN devices using Sonicwall NSA 2400/2600
I have a Sonicwall NSA 2400 (soon to replace with NSA 2600). The LAN has a widely varying number of users/devices. Some days there are 10 people onsite, some days 75-100. I want to be able to ...
0
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0answers
43 views
Mikrotik bandwidth management
I have a 16mbps/1mbps speed for internet.When a user downloads a file at fullspeed or torrent other users cant browse because connection times out.
Is it possible to share bandwidth dynamically ? Like ...
0
votes
1answer
100 views
Do physical wire properties impact the choice between T568A & T568B?
Trying figure out the key differences between T568A and T568B wiring, if any exist.
I found claims in a thread that T568A has advantages over T568B due to the fact that each twisted-pair in a ...
2
votes
2answers
210 views
Limit bandwidth in cisco router with policy-map doesn't work
I have a problem with my scenario in limiting bandwidth of ubuntu PC in GNS3 with class-map and policy-map.
this is my topology in GNS3:
The R1 is a cisco 3725 router with ...
1
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2answers
120 views
Limit Internal LAN Traffic and Internet Traffic - Managed Switch?
I have a small business network (192.168.10.x/24) with a pfSense firewall (about 20 hosts: mix of Windows, Macs and Linux machines and printers...). The ISP modem from the WWW connects to the firewall ...
1
vote
2answers
57 views
Is there an upper or lower bound of bandwidth given a particular RSS value?
When my computer is in the same place, the RSS (received signal strength) value it receives from my router tends to stay constant at around -60dBM. However, my bandwidth tends to fluctuate a lot over ...
5
votes
2answers
185 views
Limit egress traffic 2960G
This is to support a user who has the requirement of simulating specific speeds for download/upload. We have configured a limit using service-policy that as successfully limiting upload speed ...
4
votes
1answer
174 views
Cisco 3750-X Stack Bandwidth
I am currently managing a large datacenter spine-and-leaf topology. On our leafs, we use stacked 3750-X switches.
I want to know how much bandwidth is currently going across the stack links ...
2
votes
3answers
419 views
Cisco Router Limiting Bandwidth
I have a Cisco 2621XM connected straight to my ISP modem. I have a computer on the second interface of the router.
Topology:
ISP -> Modem -> Cisco Router -> Computer
When I run a ...
1
vote
0answers
51 views
Calculating the effective bandwidth with stop and wait [closed]
I am transmitting a packet through a network with the following parameters
Distance = 20,000km
Speed = 2/3c
Message size = 2.500.000
Transmission rate = 10GBps
I calculated the time for the message ...
0
votes
1answer
83 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 ...
0
votes
1answer
31 views
Dynamic bandwith sharing in SonicWall
In Sonicwall, we "split" T1 line into two lines: Internal LAN (so we can get on the internet) and Client line (so clients can work with server that we host).
We simply dedicated 25% of bandwidth to ...
0
votes
1answer
106 views
Where Does TCP overhead factor in when it comes to Wifi speeds?
Is it taken into account by the standards before they give the theoretical maximums per stream, per generation?
How could the loss in bandwidth due to TCP overhead be calculated?
0
votes
1answer
70 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 ...
4
votes
2answers
133 views
Extended ACL bandwidth consumption
While preparing for CCNA exam, I found this recommendation in a book:
Place extended ACLs as close as possible to the source of the packets that will be filtered. Filtering close to the source of ...
0
votes
0answers
114 views
Calculating Delay-Bandwidth Product of a connection with multiple links?
I have a connection with four nodes, A, B, C, D.
I want to send a large file from A to D and want to calculate the delay bandwidth product.
The bandwidth and delay, respectively, of each link is as ...
4
votes
1answer
185 views
Mechanisn for performing bandwidth accounting on Cisco routers
We're about to purchase a pair of Cisco 7201s for our edge routers, and some Juniper EX4200s for core. And I'm looking for implement bandwidth accounting for our hosted servers on this hardware (most ...
6
votes
3answers
2k views
What is the relationship between the bandwith on a wire and the frequency?
I am trying to learn networking (currently Link - Physical Layer); this is self-study.
I am very confused about one particular thing:
Suppose I want to send a data on the wire something like this:
...
1
vote
1answer
183 views
Bandwidth Speeds
I have a Cisco Catalyst 6500 with the 720 Supe card. I would like to get the upload and download utilization of a specific port. I would like it from SNMP, I have looked for the correct MIB but no ...
4
votes
4answers
10k views
How can I view bandwidth use by ip/host on a Cisco router?
My company has a 100mbps Internet connection and we have recently experienced extreme slowness when using the Internet (our provider's speedtest page indicated .25 Mbps download speed). When we ...
1
vote
1answer
2k views
QoS bandwith calculation
Please explain:
I have two routers with QoS on them.. Both WAN-facing interfaces have a bandwidth command with the same value (100000) but the priority queue (also the other reservations) calculates ...
9
votes
1answer
1k views
Traffic generation from Cisco IOS device to prove WAN circuit
In essence I want to know if there is any way that we can use extended ping or any other command variants to prove to the customer that that the circuit is able to achieve the minimum CIR. The CE ...
5
votes
1answer
207 views
Bandwidth calculation for protocol over different Data/Physical links
I am trying to calculate what the bandwidth utilisation for a specific protocol would be over different links. As a start, I have the utilisation for this protocol over Ethernet. E.g 70kbytes/sec, and ...
7
votes
2answers
808 views
Switch-Assisted Load Balancing w/ Fault Tolerance
While studying for Cisco and Microsoft certifications I read a lot about NIC Teaming, Etherchannels and similar stuff.
I know you can do static teaming in MS Windows Server or creating a ...
12
votes
2answers
2k views
Does physical distance affect download speed?
I just had an argument with a colleague of mine and thought I'd just reach out to the experts on this. Here's the scenario. We were using a website that measures your connection's speed. We tested ...
4
votes
2answers
140 views
What determines the degree of parallelism that can occur over a network?
I'm trying to learn more about how a network (both LAN and Internet) handles traffic, and one part of this is the question of parallelism.
In the documentation for Speedtest.net, in describing how ...
6
votes
4answers
786 views
Measuring Internet connection bandwidth [closed]
I need to recommend a reliable way for our clients to measure their Internet connection's bandwidth. Currently, I've been recommending www.speedtest.net for a number of reasons:
Easy to use ...
7
votes
3answers
979 views
Why does my UDP Broadcast wireless communication is capped at 1MBs?
I am trying to implement Network Coding over a meshed network. Therefore I need to send packets to several destinations, this is way I am using Broadcast packets. But I can not understand why this is ...
7
votes
2answers
330 views
Determining optimal bandwidth needs for the office
We're currently using the Cisco 1921/K9 router along with SG300 L3 switch and other L2 switches in the office environment. We're hooked up to a 10M fiber line for internet but not sure if we need that ...
3
votes
7answers
584 views
Media Transfer rates…is using laser over fiber the fastest?
My simple understanding is that one of the advantages of going to fibre (light) is that you transfer things at a lot higher rate than a standard cable using the light frequency. Adjusting the light ...
