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Questions tagged [switch]

a device that bridges network segments, operating at the OSI link layer level.

Switches (in the context of this site) are devices with multiple network ports, which allow interaction between all devices connected to these ports.

Basic switches operate at the data link layer level (in TCP/IP networks) and forward packets based on the link layer address in the packet headers. They are different to hubs in the way that hubs generally broadcast incoming packets to all other ports, whereas switches keep tables of link layer addresses they have seen at specific ports and only forward packets to the relevant ports. Basic switches are also known as layer 2 devices.

Higher grade switches can include functionality at higher layers of the OSI stack. This can range from IGMP snooping (for multicast support) and VLANs through to NAT, VPN, firewalls or even application layer functionality (web caching or proxying). Such switches are known as multilayer devices.

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how to configure static lan ip to different router provided by isp?

We have got Vodafone Internet ISP. We asked for 5 public ip's. They had provided 1 wan ip and 5 lan ip pool. WAN Configured and internet working but LAN ip how to use, i need 5 static ip address to use for 5 different devices.
bishnu
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How can I Change Password of Cisco (C3560-IPBASEK9-M) Switch with Command Line?

I can make remote (ssh) connection to my Cisco (C3560-IPBASEK9-M) switch on putty and I can log in with username and password. How can I change password -that I use when I log in- on this command line? ( I'm very beginner, I made some search but…
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How to properly add more lan devices ? Home network

I have a small home network. 1 router with wifi and 4 lan ports. The problem is that I don't have enough lan ports and I want to extend it. I have a few possible solutions but I feel like none of them are good enough. Solution 1: …
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how to connect reverse proxy Server

I have an IIS-ARR LoadBalancing server connected to internet. And I have 2 IIS web servers in a LAN (using a switch) without internet. The IIS-ARR is configured as reverse proxy for 2 websites www.website1.com and www.website2.com. These 2 websites…
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What are the disadvantages if routers (layer 3) didn't existed?

I'm new to networking and I'm trying my best to understand some concepts. Therefore, if routers never existed and we had only layer 2 switches, what would be the problems that arise and cannot be solved by the switch ? Through this question, I'm…
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How to configure managed switch

The work environment is shown below. I want to install two new managed switches (cisco SG250-8) for the ones shown in green. I configuered the switches with one vlan and gave them the ip address 192.168.2.82 and 192.168.2.83 (subnet /24). I set the…
Mister 832
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How to set up a network connection with 2 ISP,s 2 Routers and 1 switch

I want to use 2 ISP providers at the same time, to avoid downtime. Here's a diagram of what I want to do: What settings should I use for the routers and can I force PCs to use ISP#1 when online and ISP#2 when 1 is down?
Radoslav Trenev
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how to verify if target host is linux/solaris or switch/router/else

I have hosts file in my master linux machine and this host file include more then 1000 IP address that defined many components as Linux and solaris machine and switches and routers and EMC port and so on example 192.9.200.23 LinuxM26 …
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Do I need a managed switch for my home network?

The benefit to home routers is that all you need to do is plug them in, and they pretty much work out of the box, allowing multiple computers to use a single internet connection. Let's say I wanted to transparently replace my standard home router…
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Configuring Allied Telesis AT-9000/28

I am trying to configure an Allied Telesis AT-9000/28. It comes with an RJ-45 to DB-9 connector but my computers lack a serial port. What are my options? I'm on the LAN/same subnet, can I network in (ie "telnet"?). If I got an RJ-45 to USB…
Daniel Forward
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What type of switch should I get to implement a site with around 140 desktop machines, plus around 20 SIP phones?

We're moving to a new office and we will be needing to setup a network closet. I'm estimating that we will have around 140 ethernet ports and will be using CAT6a cabling for 1Gbps connections. I'm wondering if there is a recommended switch that we…
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Router Switch hanged down

I have a switch placed in department and connected through Media Converter which is directly connected through optical fiber cable from 3com Switch. Now the issue is Some times suddenly the Endpoint Switch hangs and its LED blinks very slowly, and 5…
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I need a 5th port on a 4-port modem

I'm managing a big building, with a lot of services/vendors and I have a DMZ'd 4-port cable modem, Model: SMC8014, that has 4 separate networks branching off each of its 4 ports. Each network has its own equipment (Its own router/firewall). It's…
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Can I connect many switches to a switch?

I am trying to make a campus network.I haven't any experience. In campus,there are center building and many buildings.I use many switches(for pc,phone,sec-cameras) in a building.And I want to connect these many switches to a switch.So each building…
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Same static IP addresses to single static IP address communication

I have a server with 4 modules, and one Ethernet Port and an internal hub to assign these modules to, configured as below. Module 1: 192.168.10.1 Module 2: 192.168.10.2 Module 3: 192.168.10.3 Module 4: 192.168.10.4 Each of these Modules intend…
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