VLAN Problems

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Jun 23rd, 2009
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I have two 3750 switches. Each have VLAN 91 and VLAN 804. From one switch, I can ping the other using VLAN 91. When I try pinging VLAN 804 from one switch to the other, I cannot get through.

I believe I have all the correct routing statements in the router.

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Edison Ortiz Tue, 06/23/2009 - 07:10
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Make sure Vlan 804 is up/up on both switches.

For Vlan 804 to be up/up, you need to have an access switchport associated to that Vlan in 'connected' state or a trunk switchport with Vlan 804 in 'forwarding' state.

You also need to be sure Vlan 804 exists in the Layer2 Vlan DB.




John Blakley Tue, 06/23/2009 - 07:12
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Kind of hard to tell.

You said that you have all the correct statements in the router, so are these switches across a link, or are they on the same side of the router?

Are the vlan svi's on the same switch? Can you ping from the switch from one svi to another?

If you don't have a member in any of the vlans, the svi's won't be up to ping.

Can you do a sh int vlan91 and sh int vlan804 on each switch and see if their status is up/up?

There can be a lot of other reasons why it's not working, but we should start here. Oh, and if none of the above seems to be the cause, maybe you could post a diagram of your topology and some configs?



smothuku Tue, 06/23/2009 - 22:08
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Please paste the config od devices..

MSK :)


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