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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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Uninstalled server 2008 now router won't handle DHCP

My set up is this. server behind router, router has a server and switch connected to it with multiple computers. router used to serve DHCP and DNS, a couple of days ago installed AD, DNS and DHCP on the server, and the server gave out IP's. For…
john
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Cisco switch inter-vlan access

I have Cisco Catalyst 2960-s switch and I want to configure three Vlans (A; B; C) I want to : Allow traffic between A and B Allow traffic between A and C Block traffic between C and B or if there is other method to permit/deny access between…
Ould Abba
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Layer 3 switching in data center

I have currently 3 uplink ports in the data center with 3 different subnets. They connect to 3 servers. I want to make it only 1 uplink and connect it to a switch so ip addresses can be accessible from all servers( each server has many virtual…
user2366317
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Cisco Switch VLAN vs ACL

I am trying to create a VLAN in which my PS3 can access a remote PC that feeds it video. I want my PS3 not to be able to communicate to the internet, and be able to move that remote PC into the same VLAN as the PS3 and not be able to get online. I…
Bain
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Connecting vmware on two computers

I have a switch and 2 computers, each one has vmware with a running centos 5.8 on. what i am trying to do is ping centos2 from centos 1 through the switch(10\100). please help.
Voodster
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Tenda 1024g Screw Type?

Does anybody know the type of screw/clip nut I should use for my Tenda 1024g? Thanks in advance!
user160398
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Can I configure my Negear WGR614v7 to treat DCHP traffic like a hub?

I have a Negear WGR614v7 wireless router (Hardware Version V7, Firmware Version V2.0.30_2.0.30NA.) I've configured a Windows Server box to act as a DHCP server (among other things.) My DHCP server is unable to serve addresses to clients, and the…
Brian Stinar
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stacking two Dell 8024 rack switches

two Dell powerconnect 8024 (8024, 8024F)- rackmount how can these be tied togeather? stacked.. this would be used as interface for dedicated LAN
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Are Cisco access ports basically the same thing as a port on an unmanaged switch?

The title should say it all..I'm trying to learn more about VLANs, tagging/trunking, etc.
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VLAN routing issue

I have HP Procurve Switch 2910AL-24G. Please see attached configuration. Client inst2is01 (10.247.167.80) and VLAN ID is 37 Server ILO (Management Port) IP : 10.247.172.70 and VLAn ID is 54 From the client inst2is01>> I can't do ssh to Server ILO IP…
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Why does a wired network slow down with user increase?

If you had a wired network, 20 PCs hooked up to a 100 Mbit/sec switch (same onboard ethernet port speed) and you were just sending some test data round. What is the technical explanation as to why 20 machines sending test data around this network to…
Ed Briscoe
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Practical difference between CISCO C2960PD-8TT-L and Netgear ProSafe GS108P

So I'm setting up a new department and doing some shopping for our new 4 developer team. I need to get some switches so that each member has at least 2 ethernet ports +1 with POE for an IP phone (1 port for laptop, 1 for special hardware we're…
dukeofgaming
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How can I filter traffic using a layer 3 switch?

I have a layer 3 switch which needs to route traffic to 2 different networks which don't see each other. What would be the simplest and most efficient way to do this? And is there any straight forward documentation I could follow to get this done?
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Can two servers talk to each other via TCP by this configuration?

This is an interview question: There are two servers on Rank A, setup the network on the two hosts by following configuration: Server A: ifconfig eth0 10.10.15.129 netmask 255.255.255.0 up route add default gw 10.10.15.2 Server B: ifconfig eth0…
J JIA
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Existence of switch disturbs network: cable is fine straight to laptop but not through a switch

This will be a bit complicated to read, but I hope it will be clear. English is not my first language, sorry. In our school we have an HP 2530-24G switch connected to an unmanaged tp-link tl-sf1005d switch. We'll call the latter Switch 6. From this…
Gulyás Mihály Iskola Csorvási
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