From: Tshon (tshon@xxxxxxxxxxx)
Date: Fri Mar 01 2002 - 21:23:59 GMT-3
The Neighborship is formed between two directly connected neighbors for
purpose of flooding LSA's for a given segment. If the routers don't
share a segment.... which they don't in Frame-relay (NBMA, with out full
mesh), they will be unable to form and adjacency.
Tshon
Bob Sinclair wrote:
>I do not believe that your spokes will become adjacent. The hellos that form
adjacency have a ttl of 1, and get timed out going through the hub. At least t
hat is my thought. They could be the next hop, so they will need to be mapped.
>
>
>----- Original Message -----
>From: "Robert M. Yee" <ryee@bluespud.com>
>To: <ccielab@groupstudy.com>
>Sent: Friday, March 01, 2002 2:44 PM
>Subject: OSPF neighbor stuck in ATTEMPT/DROTHER
>
>
>>Hi all,
>>
>>I'm trying out a config for OSPF running over frame relay. I have 3 routers,
r1, r2 and r3. Router r1 is the hub router set with a a subinterface and r2 an
d r3 are setup with physical interfaces.
>>
>>I have turned off inverse arp on all routers and am using 'frame-relay map' s
tatements with broadcast option set.
>>
>>I believe that the frame config is setup correctly, My PVCs are up, and I can
piong from each router.
>>
>>However, when I configure OSPF on this network, I can only form adjacenies fr
om the spoke<-->hub, but not from spoke<-->spoke.
>>
>>Here are the consig for the hub and one of the spokes (the other is just a mi
rror).
>>
>>R1 (HUB)
>>version 12.1
>>hostname r1
>>!
>>interface Serial0
>> no ip address
>> encapsulation frame-relay
>> frame-relay lmi-type cisco
>>!
>>interface Serial0.1 multipoint
>> ip address 172.16.1.1 255.255.255.0
>> frame-relay map ip 172.16.1.3 103 broadcast
>> frame-relay map ip 172.16.1.2 102 broadcast
>> no frame-relay inverse-arp
>>!
>>router ospf 1
>> log-adjacency-changes
>> network 172.16.1.0 0.0.0.255 area 0
>> neighbor 172.16.1.3 priority 1
>> neighbor 172.16.1.2 priority 1
>>R2 (Spoke)
>>version 12.1
>>hostname r2
>>!
>>interface Serial0
>> ip address 172.16.1.2 255.255.255.0
>> encapsulation frame-relay
>> frame-relay map ip 172.16.1.3 201 broadcast
>> frame-relay map ip 172.16.1.1 201 broadcast
>> no frame-relay inverse-arp
>> frame-relay lmi-type cisco
>>!
>>router ospf 1
>> log-adjacency-changes
>> network 172.16.1.0 0.0.0.255 area 0
>> neighbor 172.16.1.1 priority 1
>> neighbor 172.16.1.3
>>
>>***
>>r2#sh ip ospf nei
>>Neighbor ID Pri State Dead Time Address
Interface
>>192.168.1.1 1 FULL/BDR 00:01:43 172.16.1.1
Serial0
>>N/A 0 ATTEMPT/DROTHER - 172.16.1.3
Serial0
>>
>>Thanks,
>>
>>Robert
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:56:50 GMT-3