OSPF Missing routes with frame-relay

From: Syv Ritch (syv@911networks.com)
Date: Sun Mar 16 2003 - 05:28:02 GMT-3


Hi ccielab,

I have 2 routers in an area connected to area 0 through a
virtual link.

1 router have the area 0 routes, the other one does not.
The routes are in the OSPF database, but they are placed
into the routing table.

Router 5 area 2 <<< router with the area 0 routes
                     172.16.4.0 & 172.16.99.0

router ospf 10
 router-id 5.5.5.5
 log-adjacency-changes
 network 172.16.10.0 0.0.0.255 area 2
 network 172.16.30.0 0.0.0.255 area 2
 neighbor 172.16.10.2

                Summary Net Link States (Area 2)

Link ID ADV Router Age Seq# Checksum
172.16.4.0 2.2.2.2 69 0x80000004 0x8BB3
172.16.99.0 2.2.2.2 69 0x80000004 0x6845

c2505#r os
     172.16.0.0/24 is subnetted, 5 subnets
O 172.16.20.0 [110/1795] via 172.16.30.4, 00:08:09, Ethernet0
O IA 172.16.4.0 [110/1845] via 172.16.30.4, 00:08:09, Ethernet0
O IA 172.16.99.0 [110/1895] via 172.16.30.4, 00:08:09, Ethernet0

c2505#o i s1
Serial1 is up, line protocol is up
  Internet Address 172.16.10.1/24, Area 2
  Process ID 10, Router ID 5.5.5.5, Network Type NON_BROADCAST, Cost: 50
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 5.5.5.5, Interface address 172.16.10.1
  No backup designated router on this network
  Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
    Hello due in 00:00:12
  Index 2/2, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 3, maximum is 3
  Last flood scan time is 0 msec, maximum is 0 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 7.7.7.7
  Suppress hello for 0 neighbor(s)

c2505#s int s1
Building configuration...

Current configuration : 206 bytes
!
interface Serial1
 bandwidth 2000
 ip address 172.16.10.1 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 172.16.10.2 35 broadcast
 no frame-relay inverse-arp
 frame-relay lmi-type ansi
end

***************************************************
Router 7 area 2 <<< router w/o the area 0 routes
                     172.16.4.0 & 172.16.99.0

router ospf 10
 router-id 7.7.7.7
 log-adjacency-changes
 network 172.16.10.0 0.0.0.255 area 2
!
                Summary Net Link States (Area 2)

Link ID ADV Router Age Seq# Checksum
172.16.4.0 2.2.2.2 1834 0x80000003 0x8DB2
172.16.99.0 2.2.2.2 1834 0x80000003 0x6A44

c1602r#r os
     172.16.0.0/24 is subnetted, 3 subnets
O 172.16.30.0 [110/1795] via 172.16.10.1, 00:04:23, Serial1
O 172.16.20.0 [110/3580] via 172.16.10.1, 00:04:23, Serial1

c1602r#o i
Serial1 is up, line protocol is up
  Internet Address 172.16.10.2/24, Area 2
  Process ID 10, Router ID 7.7.7.7, Network Type NON_BROADCAST, Cost: 1785
  Transmit Delay is 1 sec, State DROTHER, Priority 0
  Designated Router (ID) 5.5.5.5, Interface address 172.16.10.1
  No backup designated router on this network
  Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
    Hello due in 00:00:17
  Index 1/1, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 2
  Last flood scan time is 0 msec, maximum is 4 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 5.5.5.5 (Designated Router)
  Suppress hello for 0 neighbor(s)

c1602r#s int s1
!
interface Serial1
 bandwidth 56
 ip address 172.16.10.2 255.255.255.0
 encapsulation frame-relay
 ip ospf priority 0
 frame-relay map ip 172.16.10.1 37 broadcast
end

-- 
Thanks
syv@911networks.com


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