not able to ping the interface of the new VLAN

[karthikeyan gopinathan]

hi

i have a cisco 3750M i created a new vlan but i am not able to ping the ip address of this VLAN this is so wierd, i have a cisco 3750G in which i am able to create a new VLAN and also able to ping the interface ip address..so please help me out in figuring the issue

Thanks

Karthik

[Jon Marshall]

karthikgopi wrote:
hi
i have a cisco 3750M i created a new vlan but i am not able to ping the ip address of this VLAN this is so wierd, i have a cisco 3750G in which i am able to create a new VLAN and also able to ping the interface ip address..so please help me out in figuring the issue
Thanks
Karthik

It would help if -

1) you posted the config of the 3750

2) you told us where you were trying to ping it from ie. from another switch or a host and if a host is it connected to this switch or another. Which vlan is the host in ?

3)  also can you post from the switch "sh ip int brief" and "sh vlan"

Jon

[karthikeyan gopinathan]

i have attached the details, in sh ip int br i am seeing the vlan is down in protocol collumn

[Jon Marshall]

Just to clarify - which vlan interface is it you are trying to ping ie. 100 or 301 ?

Jon

[Jon Marshall]

The reason vlan 100 and vlan 301 interfaces are up/down is that for a vlan interface to be up/up you need either -

1) a port allocated to that vlan to be up/up and you have no ports allocated to either vlan. Note it's not enough just to allocate the port it must also have something connecting so that th port is up/up

or

2) a trunk link on the switch that allows vlans 100 and 301 but you have no trunk link on this switch

Jon

[karthikeyan gopinathan]

Hi jon

As you said I have connect a device to this port then only the VLAN is up and now I am able the ping the interface ip. Thanks for your help

karthik

[Jon Marshall]

No problem, glad to have helped.

Jon