All Questions
19
questions
1
vote
4
answers
3k
views
Communication between different VLANs
In my previous understanding, there is no way to communicate between two VLANs using only layer 2.
After all, this is the purpose of having VLAN.
I found a forum that claims the following.
1.VLANs can ...
- 45
0
votes
3
answers
2k
views
No internet access on VLAN
I'm trying to setup VLAN on my TL-SG3210 (3.0).
I created simple VLAN:
vlan 10
name "vlan10"
Then, I assigned port 2 & 3 to VLAN.
I also created interface:
interface vlan 10
ip ...
0
votes
2
answers
413
views
Some extra clarification regarding VLANs and SVI
Good afternoon guys,
I've got a question regarding VLANs and SVIs.
First of all, I know some concepts about VLANs, and I've been in the IT field for a while.
But this one is a bit confusing for me.
...
- 3
1
vote
1
answer
311
views
How do (LANCOM) Tag-Based vlan groups work and on which vlan does the device respond?
I just started a new job and part of it is to manage and maintain the ICT. As the previous network/system engineer left the company i'm on my own to figure out how everything works.
I have ...
- 219
4
votes
1
answer
8k
views
What is the purpose of native VLAN on a trunk link?
Most VLAN articles I've read recommend avoid using VLAN1 for ports with untagged traffic (aka access ports). I've heard enough of this nonsense. Except for the reserved values of 0x000 and 0xFFF, a ...
- 433
1
vote
1
answer
342
views
Help with small office setup - Cisco SG350 28 port switch
I have very limited knowledge in Cisco IOS but in a crucial state to setup up a small office network. I have bought 2 Cisco SG350 28 port Layer 3 switch,
Switches should be enabled with VLAN and VTP.
...
- 11
7
votes
3
answers
10k
views
Posible to connect VLAN switch through dumb switch?
Is it possible to connect a VLAN switch into a dumb switch ?
The router will know how to reach network connected by a VLAN through the dumb switch please ?
No edge effect ?
By example, a schema of ...
- 71
1
vote
1
answer
525
views
Frame transfer from one switch to another configured with VLANS
Hi,
My question is related to the Vlan. And this question would consist of 2 parts.
1)Would Switch 1 know all the devices present in Vlan 2 or Vlan 3, including the ones present in the Switch 2.
...
- 405
3
votes
2
answers
1k
views
Does it make sense to map a VLAN to each LAN?
I saw a picture of a network-structure with VLANs in it:
Why would somebody structure their network like this? Does this even make sense? I mean, they are in a different LAN, why then mapping a VLAN ...
- 782
3
votes
1
answer
247
views
VLAN Isolate Setup
How can I set up a switch so that devices on one switch port are isolated from devices on other switch ports? I'm guessing this should be done with VLANs, but I'm open to other options as well.
...
- 165
3
votes
2
answers
6k
views
Router vs VLAN in networking?
Why do we need Routers at all when we have VLAN ?
Vlan breaks the broadcast domain.
Vlan along with the use of SVI can be used for routing.
So why do we need routers for in networking ?
- 149
1
vote
4
answers
6k
views
One VLAN on two switches
I'm trying to understand the specifics of trunking a VLAN on two switches.
Say I have two switches, both hosting half of VLAN 3.
Switch 1: Ports 0-5 on VLAN 3, Port 6 is Trunk
Switch 2: Ports 0-5 ...
user39822
3
votes
2
answers
31k
views
What is difference between standard VLAN extended VLAN?
I know that the range of standard VLAN is 1-1005 and in extended VLAN the range is 1-4094.
But is just range is the difference?
- 355
2
votes
1
answer
54
views
Exact trunk operations over an incoming tagged frame
Consider the following example:
H1 --- S1 --- S2 --- S3 --- H2
Hx are hosts, Sx are switches.
Both hosts are connected with access port on VLAN 20 to the corresponding switches, while all the other ...
- 123
2
votes
2
answers
496
views
Understanding VLAN tagging
Let's say we have 4 machines connected to a layer 2, managed switch which is connected to a layer 3 switch. Say that 1.2.3.0/24 is routed to the layer 3 switch. Our goal is to have 1.2.3.0-63 usable ...
- 123