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Questions tagged [switching]

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Having issues connecting PC to home media/gaming setup

Huge wall of text incoming, so please bear with me! I have a media/gaming home setup consisting of an HDMI switch (this one) which allows me to connect my various devices to my fairly recent Acer ...
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0answers
21 views

Host a service accessible to all VLANs

I have a cheap TP-Link TL-SG108E layer 3 switch, and have two VLANS on it. I have a laptop, connected to port 1 in the switch that is tagged. The laptop acts as a DHCP (isc-dhcp-server) server for ...
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1answer
70 views

Can I swap harddrives with identical laptop, and different operating systems

My laptop had coffee spilled on it. After cleaning it up with alcohol, everything seems to work fine besides for some keys on the keyboard (which was replaced after the spill) The technician in ...
0
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1answer
232 views

Connecting switch through to virtual machine host-only network

I have a mac book running Mac OS High Sierra. It is host to three virtual machines running Ubuntu 16.04. All VMs have two adapters enabled; NAT and Host-Only. The mac is connected to another host via ...
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1answer
36 views

Internet Protocols: calculating end to end delay when a header is added to each packet

I have been trying to teaching myself about internet protocols, and I learned how to calculate the end to end delay for a packet switched network from this website (1c): http://www.ics.uci.edu/~...
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0answers
39 views

Switch “goes to sleep” … sometimes

tl;dr: a switch will pass traffic between 2 segments for a while, but then "goes to sleep"(?) for 1 of the two directions on that data path. Packets from 1 segment will wake it up, but not from the ...
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0answers
82 views

Netgear ProSafe with Cisco Aironet - Guest VLAN no Internet

I'm running into an issue setting up a guest VLAN on my Netgear Prosafe switch using a Cisco Aironet 1832i Access Point. The Management VLAN works as expected (issues IP addresses, can access Internet,...
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1answer
559 views

How to switch from SATA 2 to SATA 3 after cloning HDD to SSD

I have recently cloned my old HDD of my laptop to a new Kingston HyperX Savage. But it only shows half the speeds it should get. I followed the tips from this thread: How can I determine the SATA ...
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1answer
1k views

How to automate the backup of Dell switch

We are trying to automate the configuration backup of Dell L2 switch N2048. Switch is in the network with SSH, HTTPS enabled, and Telnet disabled. Steps we've tried: Plink – we could connect ...
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0answers
36 views

Use input switch as output switch?

I am trying to find a good HDMI output switch (1 input and multiple outputs), but they are pretty hard to find. But since there are so many HDMI input switches out there it got me wondering: Is it ...
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0answers
50 views

Switching Techniques - Vlan

Assume I have 3 switch connected to each other and port connected to each other are in trunking mode and sw1 have a user in vlan 10 and sw3 has a user in vlan 20. How can both user (which are in vlan ...
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1answer
717 views

layer 3 switch with vlans and home router

I have a home wireless router let's say a cisco e2500 and a layer 3 switch with 3 vlans, how can I get them to comunicate? vlans are like this 172.168.10.0 172.168.20.0 172.168.30.0 wireless has the ...
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4answers
6k views

How smart is my network?

There is an argument within my office about how smart/efficient the network we have set up really is. We have a fibre line and a cable line running into a load balancing router, which has a hardware ...
0
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1answer
746 views

RS232 switching matrix for multiple devices and PCs? [closed]

I have six pieces of equipment which con be controlled via RS232. I want to be able to select which pieces of equipment are connected to any one of my three computers at a given time. I know that I ...
2
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0answers
1k views

Netgear GS724Tv4 inter-VLAN routing

Summary I am toying with a relatively small home LAN and I am baffled and idealess as to how to configure inter-VLAN routing on GS724Tv4. I suspect it's because of some oversight on my part or simply ...
0
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1answer
489 views

Can I connect a CM820 modem to a switch to get more ports?

I have an Arris Touchstone CM820 cable modem (DOCSIS), but it has only one RJ45 socket. Can I connect a switch to it (like TL-SF1005D for example) in order to have more internet ports?
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1answer
64 views

Connecting router as a switch [duplicate]

In a home LAN, I have connected one router A (which is also connected to the Internet) to router B but router B is supposed to work only as a switch (I am not using the WAN port in router B at all). ...
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0answers
523 views

Switch between desktops in windows 7 when we pin many programs to taskbar

When we pin many programs to the taskbar another desktop window is added which we can switch between them as you can see in the picture: my question is how we can add them (without pinning the ...
2
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1answer
998 views

connect two vlans in cisco switch to one server

I have two VLANs on a Cisco switch. The first VLAN includes 24 PCs and the second has another 24 PCs. Now the company has decided to install a server for these computers. How can we connect these ...
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1answer
27 views

Can I use a VLAN to prevent naming conflicts from devices on the same subnet?

My scenario is this... I have a business where all of the devices are connected to two layer 2 HP switches that are joined by a static port team. All of the connected devices are on the same IP ...
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0answers
52 views

Identifying unknown switch in network

I have a managed switch and I want to identify an unknown switch that is connected to it.I have the MAC addresses of all the devices connected to it. how to identify which one is the switch?
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2answers
17k views

How to enable ip masquerading/forwarding on CentOS 7

I want to enable IP masquerading/forwarding on CentOS 7, but when I specify net.ipv4.conf.default.forwarding=1 in /etc/sysctl.conf, it doesn't work. Can any one help with this problem?
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0answers
465 views

Inter vlan routing through Layer3 switch vs Router

I am trying to understand a network configuration that I have recently inherited. I am trying to diagnose slow network speeds, internet latency, dropped packets... you name it, the network it kind of ...
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1answer
33k views

What happens if an unmanaged ethernet switch is looped (connected to itself)?

I don't know much at all about networking, and I when I tried to find an answer to this online I found someone who posted a one sentence answer saying "It would cause lots of broadcasts and collisions....
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0answers
424 views

In XOrg, can i switch keyboard-layout per application and still honor ~/.Xmodmap

I'm using my ~/.Xmodmap to map: keycode 38 = a A adiaeresis Adiaeresis and similar to be able to type German umlauts (äöü) on a US-qwerty layout. For switching keyboard layouts between German qwertz ...
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1answer
55 views

Computer goes haywire when connected to modem/router or switch, but not AP

I've got a really weird situation with one workstation on my network. Topology: Comcast Business class modem/router -> D-Link gigabit switch (192.168.42.0/24) -> Linksys EA6500 router/AP (192.168.1....
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1answer
2k views

Instead of VTP , what protocol can be used for non Cisco switches?

I got to know that VTP (VLAN Trunking Protocol) is a Cisco proprietary protocol. So VTP can be used only on CISCO switches. So if there is a non-Cisco switch in a network, what kind of protocol can ...
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0answers
597 views

Cascading KVM switches

I have a not-so-small number of computers (say, 5) which I want to access with a single keyboard, USB and monitor. I can get an 8-port KVM switch, which is a pretty expensive piece of hardware; ...
0
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1answer
800 views

Disable of discrete/native graphics on MacBook Retina when using apps like VMware, VLC, etc

I got a MacBook Pro Retina a few months ago and I'm really happy with it. However, since I do a lot of work in different environments/OSes, I make heavy use of VMware to have them with me when I'm on ...
1
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1answer
67 views

Switching Between Desktops does not Stick

I am using a MacBookPro and use the three-finger swipe gesture to move between desktops. However, this feature seems to stop working randomly. Interestingly though, when this happens, I am still able ...
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2answers
4k views

SFP Expansion Slots - Bad terminology or Bad understanding?

I'm doing a bit of product research for my company as we need to select a special use switch for an industrial customer which requires the use of both Ethernet and Fibre connectivity from the switch. ...
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2answers
27k views

Extract and overwrite existing files

I am trying to write a batch script to extract files out of an existing ZIP file, into another folder on my desktop and to have the system not prompt me as to whether I want to overwrite the existing ...
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1answer
1k views

Moving “Workspace Switcher” in Ubuntu Unity Launcher

I need the Workspace Switcher in Unity's Launcher at the very top just below Dash or Nautilus. I need this because when I run VirtualBox the commands CtrlAlt↑/↓/←/→ are not ...
0
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1answer
505 views

wireless networking: can wicd switch wireless cards automatically

I have slackware64 13.37 installed on my laptop, with wicd 1.7.0 as network manager. By default wicd connects using the internal wifi card. I have a much better usb wifi card that I would prefer wicd ...
3
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4answers
3k views

What is the security risk of using WLAN and LAN network on a computer at the same time?

We have a few older HP laptops that when docked in a port replicator the WLAN connection is disabled and the LAN connection is enabled. We have since replaced these with Toshiba R700s which do not ...
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2answers
1k views

Enabling Alt+Tab buffer switching like Windows or Firefox in Vim

How do I set up a buffer switch like Alt-Tab on Windows:? It cycles through a list sorted by last access first? So if I pressed Alt+Tab, I'd get the last accessed buffer. If I pressed it again, I ...
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2answers
185 views

Is it possible to share a big-screen monitor - switching between personal Windows 7 laptops in the office?

We use laptops & WiFi in the office. We often make demo to each other and need to show the demo on a big screen monitor hang in the middle of the room :). I want to switch the display between ...
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3answers
3k views

In Opera 11, how can I set up shortcuts to switch to specific tabs?

In Firefox on Linux, we can use Alt+1, Alt+2, etc. to switch to the first, second, etc. tabs, till the 9th tab. This is very useful to switch between tabs. In Opera 11 on Linux, I couldn't find a way ...
19
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2answers
10k views

Switch buffers in vim without saving to a currently modified file

Ok, I'm a vim user with the Minibufexl plugin which shows buffer tabs, I've mapped Shift+J and Shift+K to switch between tabs. One thing that frequently frustrates me is while editing a file, and ...
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3answers
85 views

Get multiple systems at once?

I heard that there are some programmes that allow to feel like you have 2 OS at once, that is to say, you can easily, without rebooting, switch between them. So I have the follwing question concerning ...