From: Mike Haddad (mike.haddad@hotmail.com)
Date: Thu Mar 27 2008 - 00:11:53 ART
Try to add "ip ospf mtu-ignore" on the OSPF interface on the routers. IF you
debug ip ospf you will see that the issue is the MTU mismtach between the
switch and the router.
Regards.
> Date: Wed, 26 Mar 2008 20:07:19 -0700> From: mpurple7@yahoo.com> Subject:
OSPF 2-way neigborship EXSTART> To: ccielab@groupstudy.com> > Hi expert,> >
Sorry for ask many question in this forum. > > I like to create 2-way
neighborship between 2 Router & Swithes.> > R1 (int fa0/1) ---vlan10--- SW
---vlan10--- (int fa0/1) R2> > on R1> router ospf 1> router-id 1.1.1.1> net
1.1.1.1 0.0.0.0 a 0> net 192.168.10.1 0.0.0.0 a 0> int fa0/1> ip ospf pri 0> >
on R2> router ospf 1> router-id 2.2.2.2> net 2.2.2.2 0.0.0.0 a 0> net
192.168.10.2 0.0.0.0 a 0> int fa0/1> ip ospf pri 0> > on SW> ip routing>
router ospf 1> router-id 3.3.3.3> net 3.3.3.3 0.0.0.0 a 0> net 192.168.10.254
0.0.0.0 a 0> int vlan 10> ip ospf pri 255> > But way there's error message
like this:> > on R1 & R2> *Mar 27 02:51:38.486: %OSPF-5-ADJCHG: Process 1, Nbr
3.3.3.3 on FastEthernet0/1 from DOWN to DOWN, Neighbor Down: Ignore timer
expired> *Mar 27 02:53:53.062: %OSPF-5-ADJCHG: Process 1, Nbr 3.3.3.3 on
FastEthernet0/1 from EXSTART to DOWN, Neighbor Down: Too many retransmissions>
> on SW> 04:57:21: %OSPF-5-ADJCHG: Process 1, Nbr 1.1.1.1 on Vlan10 from DOWN
to DOWN, Neighbor Down: Ignore timer expired> 04:57:21: %OSPF-5-ADJCHG:
Process 1, Nbr 2.2.2.2 on Vlan10 from DOWN to DOWN, Neighbor Down: Ignore
timer expired> > Please help. Thanks in advance.> > > Regards,> > Moses> > > >
> > >
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