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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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Setting up pfsense on a small business network for firewall use

I have approximately 20 machines that will all be on the same subnet with a pfsense firewall. I have no experience with pfsense, so I am just starting out. I have the following configuration: The WAN is a surfboard modem. The LAN is the pfsense…
Alex Gordon
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Switches without SFP and with SFP

So I am looking at two different rackmount switches, one I do not have SFP ports on there and one that does. Would it be possible to have those two switches linked up through just looping through ports on the switch or is the SFP trunking is…
Crazy Raisin
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Brocade FCX648-I In password recovery process

Brocade FCX648-I In password recovery process I get to a Monitor> prompt. The password recovery instructions tell me to assign a new password at this point but doesn't tell me how. There is a link to click on "Assigning new passwords" but when I go…
Dick
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3 NICs in VMware ESX 5.5.0 cannot connect to each other

I have a Vmware ESXi 5.5.0 hypervisor, installed on a desktop pc with 3 physical NICs. The first NIC is connected to the internet (WAN), the 2nd and 3rd NICs have Access Points installed (plugged in) to them. I would like to create a single network…
igy
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Allow Internet access across vlan

this is my lab: I have the switch netgear gs724tv4, I have a modem router for Internet access with dhcp that can lease only 5 ip addresses. The ip subnet for the modem router is 192.168.1.0/24 I would like to create a vlan on the switch with a…
Maxrock70
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Cisco - what is the purpose of a gigabit ethernet switching module

Cisco noob here Recetly while looking for a cisco switch and router combination for my CCNA studies i won this bid for a (I added the bid to keep track of it and i ended up winning it) Cisco-4500-Series-WS-X4424-GB-RJ45-Gigabit-Ethernet-Switching…
Malinda
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What is the difference between an accelerated LAN port and a regular non-accelerated port?

Can someone explain the difference for me? Wondering more about the difference for the end user, but a technical description would also be helpful.
Kefka
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3x networks, hardware in 2 locations, 1 connection to join them

Sorry it was hard to think of a title for this, so hopefully I can explain my situation. We have hardware (unix servers) on 3 different network subnets. For example: 10.44.1.0 10.44.2.0 10.44.3.0 All on a 255.255.255.0 subnet There isn't much on…
PhilJ
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How to access device on switch from another computer?

I have several computers all connected to the same switch. Some computers are running RHEL, one is running CentOS. The CentOS machine is connected with NIC 2 to switch 2, and NIC 1 to switch 1. The RHEL machines are connected to switch 1. Both…
Veridian
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Router connect same 2 ports?

What it will happen if 'accidentally' i will connect 2 ports with the same utp cable? I'm asking here since i don't find anyware such a stupid and silly question but i'm curios about it, the router will damage or some internal parts? :) Or the…
Mihai
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SMB Server & Switch

I am by no means a server professional, that is why I am coming to you guys for advice. Our company is looking to purchase an office building that is currently wired for ethernet. We are going to rent part of the building to the current tenants, and…
Barrett
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Connect four Modems having same IP with a single Ethernet Switch

I have a scenario where i have 4 modems connected to a switch. all four modems have IP address 192.168.0.1(default). i want to connect all of these four modems with a single switch in a way that i should be able to access each of modem from my…
Shoaib Shaikh
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Switch Loop with Dual NICs?

If I connect two unmanaged Linksys workgroup style switches together (port to port) then I take two NIC's on a server and plug one into one switch and the other into the other switch, will this create a switching loop? I guess another way of asking…
MBFROMIT
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Write operation is happening from 1 Gigabit port instead of 10 Gigabit port in NetGear switch and its random

We have a Synology system which is connected with NetGear switch. We passed 2, 10 gigabit cables from synology to switch. We connected HP server with switch with 2, 10 gigabit port. We connected one more network on 1 gigabit port to a switch. We…
Rahul
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Getting packets from one port to another on a Dell PowerConnect 2824 switch

I have a dell PowerConnect 2824 and I have a cat 5 cable connected from port 1 to port 23. Port 1 is reserved for VLAN 1 (the only VLAN that can manage the switch) and port 18-23 belong to VLAN 112. I currently have the switch setup with ip…
Arvo Bowen
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