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VLAN with multiple switches

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ericmami -  
 ericmami -
Hello,

I want to create two VLANs with multiple switches.

Let me explain; my switches are connected to each other, and I want port 12 to have VLAN ID 17 and port 13 to have VLAN ID 14 on each of my switches.

Is it possible to transport the VLAN across different switches? Then I will route the VLANs with a router.

Is it possible to split 2 VLANs across multiple switches?

Thank you in advance.

3 answers

Answer 1 / 3
Shaktale
 
Hello,

Yes, it's possible to transport a VLAN across different switches; that's actually the point of it: to structure your network logically rather than physically, provided that your two switches are connected via a trunk or equivalent :).

Regarding terminology, it is incorrect to talk about "VLAN routing," but yes, that's the idea.
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Answer 2 / 3
ericmami
 
Thank you for your response,

So if I create a trunk it's okay? Great! I just found a tutorial for my switches! http://www.zyxel.fr/files/knowledgebase/VLAN_Trunking_F.pdf

But, one more question, currently, my addresses are in 192.168.11.0 on VLAN ID i (by default)

I want to add a separate VLAN, 192.168.3.0, do I need to create two VLANs? So with VID 11 and VID 3?

Thanks in advance
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brupala Posted messages 111104 Registration date   Status Member Last intervention   14 433
 
Hello,
you're confusing VLANs and IP networks:
Although there is some correlation, the link is not systematic:
an IP network can only exist in one VLAN, but one VLAN can host multiple IP networks (and others).
You always need a router to connect different IP networks.
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ericmami
 
Thank you, Brupala, but I don't understand your post.

In short, I need 2 IP subnets because 2 different domains that must communicate with each other, using 5 switches and a router that supports VLAN.
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brupala Posted messages 111104 Registration date   Status Member Last intervention   14 433
 
I want to add a separate VLAN, 192.168.3.0, do I need to create two VLANs? So with VID 11 and VID 3?
If you don't make the distinction between VLANs and IP networks, you'll be spinning your wheels for a while, that's all.
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ericmami
 
Okay, how can I avoid getting stuck? I have tutorials that help me create VLANs but I prefer to make sure I understand before diving in...
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brupala Posted messages 111104 Registration date   Status Member Last intervention   14 433
 
OK,
it was just to get back to the basics, you can create one VLAN per IP network, that's what is generally done, and it's easier to draw, but that's no reason to continue confusing the two.
For your understanding, as I explained earlier, a VLAN is different from an IP network.
After that,
if you don’t mention what switches and routers you have, we can't really explain beyond the basic principles.
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Answer 3 / 3
brupala Posted messages 111104 Registration date   Status Member Last intervention   14 433
 
OK,
I found some docs:
http://www.zyxel.fr/files/manuals/GS2200-24_24P_UG_v3-90_Ed1_2010-02-12.pdf
http://www.zyxel.fr/files/manuals/2_20_ed2-ZW-USG-100-200_UG_v2-20_Ed2_2010-9-28.pdf
where exactly are you stuck?
--
and ... There you go!
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brupala Posted messages 111104 Registration date   Status Member Last intervention   14 433
 
The problem is that the USG documentation hardly mentions VLANs; there will certainly need to be one port per VLAN.
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ericmami
 
Désolé, je ne peux pas accéder au contenu de l'URL que vous avez fournie. Si vous avez un texte spécifique que vous souhaitez traduire, veuillez le copier ici.
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brupala Posted messages 111104 Registration date   Status Member Last intervention   14 433
 
I haven't looked into it much, but they hardly mention it in the USG100.
Otherwise, where are you stuck with the notion of VLAN/IP network at Patr?
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ericmami
 
After several hours and multiple loops created, I finally managed to create my trunk. In fact, I simply tagged and trunked the ports that communicate between the switches... that's it!

Thank you very much for your help, Brupala.
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