vlan requirements

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kornflake

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#146642 24-May-2014 16:45

I know this is a dumb question, but what type of switch is required to create vlans, I think a managed switch is needed but not 100%.

Spyware

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#1052403 24-May-2014 17:35

Pretty hard to configure if no management interface aye.

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nigelj

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#1052424 24-May-2014 18:14

You need to have a managed switch to do VLANs properly (802.1Q - it'll be listed on the specs).

You CAN in some cases essentially broadcast tagged VLANs through a dumb switch (i.e. they are so dumb they don't strip away VLANs) though (this is a very dirty/hacky/messy/nasty method. I had cause to do this one as a very temporary measure at home once, I felt like I had slept in mud for weeks).

sbiddle

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#1052433 24-May-2014 18:22

Any switch that supports VLAN's will mention this.

In the old days only "managed" switches supported VLANs, however you've now got an increasing number of smart switches which are significantly cheaper than a managed switch, while offering VLAN support.

richms

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#1052434 24-May-2014 18:24

Why is it messy? I have vlans going thru all the dumb switches here and it works just fine?

Just bought up another virtual nic on the computers and gave it a vlan tag number and it works. They don't see anything on the untagged segment and performance across the vlan interfaces doesn't seem any different to the untagged interfaces for copying files etc. I do have a single managed switch on my lan to take the vlan and connect it to the flatmates lan untagged so that he can see my machines with media on it, but not get internet access thru my connections. Again, performance from his lan thru the managed switch and onto my lans is fine.

Richard rich.ms

sbiddle

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#1052437 24-May-2014 18:29

It depends if the OP wants the switch to isolate traffic by using VLAN ports, or to create a VLAN for the purposes of tagging traffic before sending it upstream.