InterVLAN routing

[Orkhan_251]

Hello gents,

I have two cisco 2950 switches and a 3560 layer 3 switch,i want to create intervlan routing,in one switch(2950) i created :

interface vlan 10

ip address 192.168.10.99 255.255.255.0

no sh

vlan 10

In another switch (2950) i have the same configuration,and i created vl 20,but when i create interface vlan 20,interface vlan 10 shuts down:

09:05:48: %LINK-3-UPDOWN: Interface Vlan20, changed state to up
09:05:48: %LINK-5-CHANGED: Interface Vlan10, changed state to administratively down

Could you please help me?Thanks

[johnd2310]

Hi,

Your  2950 is a layer 2 switch, it can only have 1 svi active. If you create another svi it will shutdown the previous one. You can create multiple vlans on the swicth but not svi. You should do your routing on the 3560. To configure intervlan routing on the 3560, first enable routing using the command ip routing, then you can create multiple svi( int vlan 10, int vlan 20 etc)

Thanks

John

[Kevin_W]

Hi Orkhan_251,

the Cisco 2950 switch is just a layer 2 switch and not able to do inter-vlan-routing.
Just your 3560 switch (layer 3) is can handle that.

Your 2950 can only have one vlan interface for management purposes. If you create more than one vlan interface, the other will shut down. You can create many vlans, but only one vlan interface.

Please try it with your 3560.


Best regards

[Orkhan_251]

Thank you very much indeed