Intervlan Routing configuration

[Mohamed Kabeer S]

Hi,

In 3750 switch,I have configured intervlan routing.I have three vlans Vlan 10,vlan 20,Vlan 30 and I have assigned IP address for that Vlan.In vlan 10,I have connected one systen gigabitethernet 0/1 interface.From my system I am able to ping vlan 10 ip address but I can't able to ping other vlan ip address(vlan 20,vlan 30).Is it possible to up the protocol for all that time.

Kindly assist to up the interface .If it devices connected or not.

Regards,

kabeer

[cadet alain]

Hi,

if you haven't got any devices connected to ports belonging to those vlans then your corresponding SVIs will be down and intervlan routing will fail.

This is explained here: http://packetlife.net/blog/2009/nov/9/svi-autostate/

Regards

Alain

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[Bilal Nawaz]

Hello Mohamed,

An access port or trunk has to be in 'up' state for the vlan interface to be up

e.g.

for interface vlan 2 to be up you need either of the following

• Access port in vlan 2 to be 'up' (provided that vlan exists)
• Trunk that carries vlan 2 to be 'up'

Any of these ports must be forwarding

Only then will your SVI be in an up state and you will be able to ping.