i have a question about creating a vlans on layer 2 switch

[dolanduck.]

Im Confused with svi on a layer 2 switch.

How come on my layer 2 switch when i create vlan 99 and i give it a ip address of 10.0.0.2 and and 10.0.0.1 on a router interface my router cant ping my vlan 99. Is it because vlan 99 Its not assigned to a interface or no intervlan routing.

Help

[Reza Sharifi]

The port that connects the switch to the router needs to be in vlan 99 as well.

HTH

[dolanduck.]

ok is that the reason it works with vlan 1 because by default all ports belong to vlan 1 ?

[Deepak Kumar]

Hi,

Yes, you are correct.

[Deepak Kumar]

Hi,

There is a single rule that If you want to communicate with any device from the switch (Managemenable with VLANs) then there must match the VLAN assignment or Layer 3 interface configuration the same as a remote peer.

Suppose: .

Router (gig1/1)-----------(gig1/0/1)Switch

your router configuration is like:

interface gig 1/1

no shut

ip address 10.0.0.1 255.255.255.0

and your switch configuration must be like (If you want to use SVI):

vlan 99

!

interface vlan 99

ip address 10.0.0.2 255.255.255.0

!

interface gig 1/0/1

switchport mode access 

switchport access vlan 99

!

Regards,

Deepak Kumar

[dolanduck.]

is it the same with a layer 3 switch if i enable ip routing. 

[Reza Sharifi]

is it the same with a layer 3 switch if i enable ip routing. 

Yes, the same with ip routing or without it. But if the switch is just layer-2, you don't need IP routing at all. All you need is a default-gateway statement.

HTH

[dolanduck.]

thanks im now going to connect my layer 3 switch to my router then my layer 2 switch to it.