From Wikipedia: A network switch or switching hub is a computer networking device that connects network segments. An Ethernet switch operates at the data link layer of the OSI model to create a separate collision domain for each switch port. With 4 computers (e.g., A, B, C, and D) on 4 switch ...
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23 views
Router configuration monitor. [closed]
Looking for a tool to manage/backup switch, router and other network device configurations. I have tried Kiwi Cat tools, Cisco Network Assistant. So far did not like either one of them. I am looking ...
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3answers
64 views
Can a gigabit switch's performance degrade over time?
I have this Netgear 5-port gigabit switch. You know, one of those rounded white models. Well, it worked well in combination with a Netgear DSL router for a few years.
The network topology is ...
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0answers
31 views
Hide initial buffer list in Emacs' iswitchb-mode
How can I configure iswitchb-mode so that it does not display the list of all (matching) buffers until I hit TAB for the first time?
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0answers
13 views
“Not switching” keyboard layout in Windows XP
I'm using three keyboard layouts under Windows XP: USA, Italian and Russian. The problem is simple - when I resize the taskbar, I'm unable to switch my layout with shortcut and clicking on it neither. ...
3
votes
2answers
80 views
Should I wire directly to the basement for ethernet, or have a switch connected to another switch?
I have a project where I'm wiring my home for ethernet. I have four bedrooms upstairs, all of which are getting two ethernet connections each, and then a few rooms downstairs as well. I was thinking ...
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0answers
19 views
Network deployment diagram scenario
Here is the scenario, I currently have 2 applications and its individual data storages. I have 2 networking switch and 1 router.
Design A: Application A + 1 data storage is connected to 1 ...
3
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2answers
44 views
What can you use three ethernet ports for on a firewall/router?
What is the purpose of having 3 Ethernet ports on a router/firewall like this one: http://store.netgate.com/Netgate-m1n1wall-2D3-2D13-Red-P218C83.aspx vs. just having 2 like this: ...
1
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2answers
70 views
Will two 1000BASE-T devices always run at gigabit speeds when connected to the same 1000BASE-T switch?
Right now I'm running a simple network in my apartment using a wired/wireless router that supports speeds up to 100BASE-T. I've got my desktop, printer, and NAS device connected directly to the router ...
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1answer
191 views
1000Mbps switch/router + WiFi + VLAN (under $150-200) [closed]
I've home server with Hardened Gentoo Linux, which is doing all firewall/routing/etc. for my home network. Currently it have 3 NIC:
1000Mbps -> local network to second PC
100Mbps -> first ADSL modem ...
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0answers
22 views
Using four ports of a Dell PowerConnect switch
I have a Dell PowerConnect switch. I'm using four ports: A, B, C and D. Ports A, B and C can connect to their networks successfully, but when I connect D, it disconnects either port C or itself. Why ...
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3answers
65 views
File copied over the network differs from original
Having moved quite large amount of data (~1TB) over the network from one storage to another, I noticed the file on target system differs from the original.
Setup:
PC (Windows 7 64) with Windows ...
1
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1answer
68 views
Where to plug in the PowerSwitch on an ASRock K7S41GX motherboard
I have an ASRock K7S41GX motherboard.
I don't know where to plug in the power switch.
8
votes
3answers
245 views
Is chaining two switches different than connecting both switches directly to the router?
I am setting up the network for our small companies new office - I have about 20 computers upstairs and 20 down. There is a switch on each floor, the router is downstairs, and a cat5e cable running ...
1
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1answer
55 views
hooking up a belkin USB switch
I'm trying to help my parents hook up a Belkin 4-Port USB switch (model F1U200V) to a couple of USB printers, however, Google hasn't been able to find a manual. a picture can befound at ...
3
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2answers
240 views
Cisco Router/Switch with MacBook Pro OSX Lion
What I have:
MacBook Pro with OSX Lion
Very old Cisco Router and Switch
Two Crossover Cables (1 Cisco Console to Serial and 1 Cisco Console to Cisco Console)
One Serial to USB Cable
I am very new ...
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1answer
85 views
What is 10G? Is my switch 10G?
What is 10Gactually ? I have a Cisco switch ( http://www.cisco.com/en/US/products/ps10898/prod_models_comparison.html)
And it has 2xSFP interface and 10 x 10Base-T/100Base-TX/1000Base-T.
...
0
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0answers
35 views
Dropbox for home and office accounts on the same machine [closed]
Possible Duplicate:
Dropbox - can you have multiple accounts on once computer?
I have two different Windows users on the same PC and Dropbox is installed on one. Now I am unable to run the ...
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2answers
44 views
Keep Computers Seperate On Same Network
I have about a Netgear WGR614 router and a few CentreCom FS708 switches.
Is there a way to create a home network so every safe an secure computer can access the internet and another network where I ...
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0answers
64 views
Internal network speed deterioration
I am having internal network speed issues on my network.
The Server (Windows 2008 R2) has two network cards. One provides 802.1x authentication to the outside world. The second, shares this using ICS ...
0
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2answers
41 views
Using MAC address prefix AB:CD:EF
I'm trying to use tcprewrite to change the source MAC address of some packets. I deliberately chose the prefix AB:CD:EF that does not belong to any hardware manufacturer so that I can distinguish such ...
1
vote
1answer
94 views
What is the difference between Layer 2 and Layer 3 broadcasts?
As written in the title my first question is, what's the difference between Layer 2 and Layer 3 broadcasts?
If a host sends a layer 2 broadcast, the switch sends it to all of his ports, but not to ...
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3answers
144 views
Small home network cabling/routing/switching advice
Coming into my home, have a modem connected to an allegedly 20mb broadband connection. The modem has a single ethernet output. At present, I have it wired into a WRT54G 1.1 10/100 router with 4 ports ...
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3answers
44 views
Why do unicast packets not intended to me reach my NIC when I'm in promiscous mode?
When I'm connected to a switch, the switch knows which mac address belongs to which port. So even when I'm in promiscous mode, why do I receive unicast packets that are addressed to different mac ...
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0answers
65 views
ARP cache slows down LAN speed? If so how to clear cache for LAN switch?
I have a LAN switch which with 5 ports, in which one of them has connected bigger LAN.
Sometimes I observe that prolonged use effects the LAN speed, especially the P2P communications like Direct ...
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1answer
139 views
Cisco switch Link status Up, Protocol down
I just bought a Cisco 3750X switch and when I did a sh ip int brief command, I see that my TE1/1/1 interface (it's a 10G port) has status up but protocol down.
Right now, this 10G port is connected ...
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1answer
55 views
Understanding ip-Address Switching (Selenium/Watir)
Thx for your time, appreciated.
Facts:
I am customer of a ISP (cablecom.com).
My PC is connected with my ISP's Modem to the internet.
The ip-addresses my ISP provides are non-static
I want to ...
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votes
1answer
81 views
Is it possible to make laptop turn off on mouse click?
I want somehow to have an extra turn off functionality on the laptop. Therefore, I am asking the question how to turn off the laptop from an external source (ex. Mouse click). I have seen some ...
1
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1answer
54 views
Clients can't obtain DHCP addresses, other machines get reset in network
When a new system is added to our network (i.e. we plug a machine into the network) DHCP seems to be doing some funky things.
The new computer cannot obtain an IP address
Something gets reset: All ...
2
votes
2answers
142 views
How do I find the addresses of other HP switches in my network?
I'm trying to find the IP of a switch, in order to set it to factory defaults.
I heard there's a command for HP Switches to find all surrounding HP Switches. What is it?
0
votes
1answer
127 views
Password recovery of Brocade Silkworm 3200 fibre switch
We have a Brocade Silkworm 3200 fibre switch that we can not locate the administrator password. Is there a way to reset this, or is there a default ID that we can use to gain access to the device?
...
1
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2answers
134 views
Will connecting a router to a port on a switch slow down internet connection?
I plan on connecting a router (disabling DHCP) to a free port on a switch because i've run out of ports and I need 3 or 4 more. I have an extra router and this seems to be an OK solution.
My ...
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1answer
120 views
One Netgear GS716T switch port, connected to an HP CLJ 2605dn printer, triggers SNMP down/up traps every few minutes
All the other ports on the switch are fine. I've tried moving it to a different port and it does the same thing. I've looked into power management settings and there are none for this printer. The ...
1
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1answer
87 views
HP ProCurve 3500 - monitor bandwith usage
I would like to check the bandwith usage of a port. But I can't seem to find a show command that will let me do so. Any suggestions?
0
votes
1answer
30 views
Cheatsheets, guidance for experienced GIMPers switching to Photoshop? [closed]
I've used GIMP on Linux since the 1990s. Now I need to work on a Mac using Adobe Photoshop CS5. It isn't identical to GIMP. So much is similar, but I can't find certain tools or settings, and I ...
2
votes
1answer
66 views
If you connect two switches and the network goes offline, will there be any problems afterwards?
In our office, an engineer accidentally connected a LAN cable from CISCO Catalyst switches to Alcatel switches. Suddenly the whole end user network went offline. When the engineer unplugged the cable, ...
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2answers
160 views
Can ping device from one computer and not the other
I've recently been assigned to work on a diagnostic program done in C++ which communicates with a piece of electronic equipment. Our normal scenario involves communicating via an RS232 interface, but ...
2
votes
1answer
103 views
How to switch GPUs without using the tray app of Power Manager (Lenovo T500)
So.. the laptop got two GPUs. Intel and ATI.
I can switch by opening the tray app, and choosing the VGA.
However, it's got a "non-standard" size, it makes my tray look weird.
Is it possible ...
0
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0answers
34 views
Graphics card array to output array - use switch?
I have 3 graphics cards in my Ubuntu 10.04 server machine. I also have 7 monitors. I would like to take an input (a media file), play it on one of the graphics cards, and then be able to ...
1
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2answers
63 views
Cannot 'see' ethernet switch from web browser
I have installed my modem/router as a default gateway with IP 192.168.0.1, and then attached a multi-port switch to it. My two computers are then attached to the switch.
How can I get to the switch ...
1
vote
1answer
43 views
How To Connect Internet Modem To 2 LAN Devices? [closed]
I have unresolved problem with router and modem, so can i do this with HUB or switch but not with router?
0
votes
3answers
25 views
Switching keyboard/mouse/ethernet between two computers
At work, there are two computers side by side that share the same mouse/keyboard/internet cable (luckily the monitor has two cable inputs). We have to keep on switching these wires whenever we want to ...
9
votes
2answers
142 views
Gateway / Switch hybrid
Next week I'm getting a new internet connection installed. It comes with 5 static IP addresses by default.
Now, I would like to use some of these IPs on my systems. However, I have more than 5 ...
1
vote
2answers
78 views
Connecting a switch through a router
I have a router connected to my cable modem. Then I have a switch connected to that router. I have computers connected to the switch. When I look at the list of connected devices on the routers ...
2
votes
3answers
493 views
routing to a computer on a switch behind a router?
Here is the setup:
Cable Modem -> Vonage "Router" (not really sure if it is a full router or not) -> Linksys Router -> Netgear Switch -> PC
When I had the PC connected directly to the router I could ...
0
votes
1answer
96 views
Maximum throughput for a network switch for multiple simultaneous transfers between different ports
On a typical network switch each port runs at a designed maximum speed, eg: 100Mb/s
But is there a limit to the maximum transfer rate between all ports of the switch at a given time?
I am guessing ...
6
votes
1answer
220 views
Programmable USB Switch?
Is anyone aware of a USB Switch that is programmable or controlled via the PC?
I am writing a test application that requires the device (a mobile phone) to be plugged in via USB to a PC for ...
3
votes
2answers
89 views
What decides the “priority” of downloads running through an ethernet switch?
we have one broadband internet connection, which through a very basic switch is divided through I think four machines.
I've noticed that when me and my brother start downloads, his consistently ...
0
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2answers
171 views
How to connect pc through adsl router to cable modem
I have motorola cable modem with IP 192.168.100.1. It has DHCP in it switched on. To this modem is connected WIFI ADSL router EDIMAX through one of the four ethernet port. I read that I must turn off ...
6
votes
2answers
249 views
Does All LAN Traffic Travel Through A Router
I have a very simple question: if I have a router (DHCP enabled - leasing IP addresses between 192.168.0.2 and 192.168.0.254) with a switch plugged in, and I plug two computers into the switch, will ...
0
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2answers
155 views
Microsoft Internet Explorer 9 - Switching between search engines
How to switch between search engines in the search bar of Microsoft Internet Explorer 9 ?
See also this link
