From: John Mistichelli (jmistichelli@xxxxxxxxx)
Date: Sun Mar 03 2002 - 08:48:17 GMT-3
Bob is correct. What you see is normal and you will want to work around it. OSP
F on Frame defaults to non-broadcast mode and expects a full mesh. You dont hav
e a full mesh therefor you do not have direct reachability from spoke to spoke.
The interfaces will try to elect a DR and BDR. You want the DR to be the hub a
nd no BDR assigned. This means you will have to play with your priorities.
John
CCIE 7536
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Bob Sinclair
Sent: Friday, March 01, 2002 3:37 PM
To: Robert M. Yee
Cc: ccielab@groupstudy.com
Subject: Re: OSPF neighbor stuck in ATTEMPT/DROTHER
I do not believe that your spokes will become adjacent. The hellos that form a
djacency have a ttl of 1, and get timed out going through the hub. At least th
at 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 - 10:56:51 GMT-3