From: Russell Kelly \(rukelly\) (rukelly@cisco.com)
Date: Fri Aug 11 2006 - 20:28:45 ART
Hi,
An OSPF config question - I thought I had tried all combinations - but
ran across the Issue below
I have configured a frame relay hub and spoke (3 routers) with broadcast
support on the frame-maps and have mapped all routers to each other (via
the hub) like below
Spoke eg ---
--------------
interface Serial0/0.134 multipoint
ip address 187.1.134.4 255.255.255.0
ip pim sparse-mode
ip ospf network broadcast
ip ospf priority 0
frame-relay map ip 187.1.134.1 403 broadcast
frame-relay map ip 187.1.134.3 403
no frame-relay inverse-arp
end
Hub eg
--------
interface Serial0/0.134 multipoint
ip address 187.1.134.4 255.255.255.0
ip pim sparse-mode
ip ospf network broadcast
ip ospf priority 0
frame-relay map ip 187.1.134.1 301 broadcast
frame-relay map ip 187.1.134.3 304 broadcast
no frame-relay inverse-arp
End
So I though I'd try something different and set the all interfaces to ip
ospf network broadcast and set the ospf priority to 0 on the spokes and
255 on the hub. The neighbors came up to full adjacency and the ospf
databases looked the same (though the LSA routing bit not set was on
some routes - why? - ) - R1 did not have any routes installed whist R3
and R2 had all the opsf routes - I then changed so they were full mesh
(each had a dedicated DLCI to each other) - this still did not work -
note these routers can ping each other with no issues and multicast
support was confirmed on the FR.
Is there a rule re. hub and spoke and full mesh Frame-relay networks and
running opsf network type broadcast on all routers? This works fine
when the spokes are changed to non-broadcast and the hub left as
broadcast (no neigbor statements configured)
Any help or explanation greatly appreciated!!
Russell
This archive was generated by hypermail 2.1.4 : Fri Sep 01 2006 - 15:41:56 ART