Switch 1 share VLANs witch other switches

[PitPlay]

Hi all,

sorry for this question but I am still studying it but I have small project of network in Cisco Packet Tracer with main switch and three other switches for each of departments in company. I want to create in main Switch0 3 VLANS: VLAN20, VLAN21 and VLAN22. And I would like to set up that main switch will share VLANs settings with those three switches. You know what I mean? When I create vlans in Switch0 then it should also appear in others. How can I do that?

Thank you for all your advices 

[balaji.bandi]

You need to enable VTP configuration, and otehr switches as VTP clients so they get VLAN information from VTP Server.

https://study-ccna.com/vtp-configuration/

[PitPlay]

That helps. Thank you.

One more think about VLANs. I have got this error: 

%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/1 (1), with Switch0 FastEthernet0/2 (20).

And for each of Fa 0/2 ...

How can I solve this?

[Georg Pauwen]

Hello,

on a trunk link, the native Vlan needs to match. The default native Vlan is 1, if you change it on one end of the link, you need to change it on the other as well:

switchport trunk native  vlan 20 (on both switches)

[paul driver]

Hello

---

@PitPlay wrote:

%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/1 (1), with Switch0 FastEthernet0/2

---

If these interfaces are NOT trunks, then to negate this message disabling cdp on those interfaces

int x/x
no cdp enable

However if they are trunks then make the the untagged vlan(native) on the switch interconnect the same

int x/x
switchport trunk native vlan x

[Georg Pauwen]

Hello,

post the zipped Packet Tracer project (.pkt) file...

[Martin L]

share VLANs settings ?  like what settings?  VTP client and server set up lets you manage vlans names and numbers but nothing else.  I think there are some 3rd parties software that will manage switches.  Make sure you have trunks between switches for vtp to work.  Also, make sure other vtp settings are matching :  vtp domain, password.  Note: vtp domain name Null works at very beginning (null means empty, not changed yet).

Regards, ML
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