Hi!

I have 2 OSPF Areas set up, and it works fine, but one of the 3550's is producing an error:

013476: *Mar 2 13:08:46: %OSPF-4-ERRRCV: Received invalid packet: mismatch area ID, from backbone area must be virtual-link but not found from 10.50.55.1, Vlan1

I have ran that error through the Output interpreter, and I have also tried to follow this guide:

http://www.cisco.com/en/US/customer/tech/tk365/technologies_tech_note09186a0080094819.shtml#probone

But no luck fixing it.

This is OSPF is configured on my 2 switches:

Switch#1:

router ospf 1

router-id 10.50.55.1

log-adjacency-changes

no capability lls

area 0 range 10.0.0.0 255.0.0.0

area 1.1.1.1 range 172.16.0.0 255.254.0.0

network 10.0.0.0 0.255.255.255 area 0

network 172.16.0.0 0.1.255.255 area 1.1.1.1

default-information originate

Switch#2: (This is the one producing error)

router ospf 1

router-id 172.16.0.1

log-adjacency-changes

network 172.16.0.0 0.1.255.255 area 1.1.1.1

Can anyone see something wrong that I don't see myself?

Thanks.