From: NITIN NITIN (ccie_study_123@yahoo.com)
Date: Fri Jul 27 2007 - 09:48:10 ART
Hi Experts ,
I'm facing some problem
There is IRB bridging running on the frame-relay interface of R1 and R2.
And there is OSPF area 0 adjency between R3 and R2 , R3 and R1. And there is
OSPF area 51 adjacency between R1 and R2.
There is BVI 1 on both R1 and R2 having ip address 192.10.1.1/24 and 192.10.1.2/24 respectively.
R1 and R2 have loopbacks 150.1.1.1 and 150.1.2.2respectively.
R1 and R2 loopbacks are in area 51.
Now we need to summarised these loopback in area 0
So we configure "area 51 range 150.1.0.0 255.255.252.0" on ABR R1 and R2.
Now R3 has a route for 150.1.0.0/22
O IA 150.1.0.0/22 [110/65] via 154.1.13.1, 00:00:00, Serial2/2
[110/65] via 154.1.23.2, 00:00:00, Serial2/3
But when we ping the loopback on R1 and R2 we get alternet PING response.
Rack1R3# ping 150.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.1.1.1, timeout is 2 seconds:
!.!.!
Success rate is 60 percent (3/5), round-trip min/avg/max = 4/22/60 ms
Rack1R3# ping 150.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.1.1.1, timeout is 2 seconds:
.!.!.
Success rate is 40 percent (2/5), round-trip min/avg/max = 28/46/64 ms
Rack1R3#
Rack1R3#
Now if we shutdown serial between R3 and R1 we get 100% loss in ping response.
Note this is configured on Dynamips.<<<<<<<<<<<<<<<<<<<
CONFIGURATIONS ------
R3 ---
no ip cef
!
interface Loopback0
ip address 150.1.3.3 255.255.255.0
!
interface FastEthernet0/0
ip address 154.1.38.3 255.255.255.0
duplex full
!
interface FastEthernet1/0
ip address 154.1.3.3 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet1/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial2/0
ip address 154.1.0.3 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint non-broadcast
serial restart-delay 0
frame-relay map ip 154.1.0.4 304
frame-relay map ip 154.1.0.5 305
no frame-relay inverse-arp
!
interface Serial2/2
ip address 154.1.13.3 255.255.255.0
serial restart-delay 0
!
interface Serial2/3
ip address 154.1.23.3 255.255.255.0
serial restart-delay 0
!
router ospf 1
router-id 150.1.3.3
log-adjacency-changes
network 7.7.7.7 0.0.0.0 area 51
network 150.1.3.3 0.0.0.0 area 3457
network 154.1.0.3 0.0.0.0 area 3457
network 154.1.3.3 0.0.0.0 area 0
network 154.1.13.3 0.0.0.0 area 0
network 154.1.23.3 0.0.0.0 area 0
neighbor 154.1.0.4 cost 97
neighbor 154.1.0.5 cost 195
R2 config ----------------
ip cef
bridge irb
!
interface Loopback0
ip address 150.1.2.2 255.255.255.0
!
interface FastEthernet0/0
no ip address
duplex full
bridge-group 1
!
interface Serial2/0
no ip address
encapsulation frame-relay
serial restart-delay 0
frame-relay map bridge 201 broadcast
no frame-relay inverse-arp
bridge-group 1
!
interface Serial2/1
ip address 154.1.23.2 255.255.255.0
serial restart-delay 0
!
interface BVI1
ip address 192.10.1.2 255.255.255.0
!
router ospf 1
router-id 150.1.2.2
log-adjacency-changes
area 51 range 150.1.0.0 255.255.252.0
network 150.1.2.2 0.0.0.0 area 51
network 154.1.23.2 0.0.0.0 area 0
network 192.10.1.2 0.0.0.0 area 51
!
ip classless
no ip http server
!
!
access-list 11 deny 154.1.13.0 0.0.0.255
access-list 11 permit any
!
!
!
bridge 1 protocol ieee
bridge 1 route ip
R1 CONFig -----------------------
ip cef
!
bridge irb
!
interface Loopback0
ip address 150.1.1.1 255.255.255.0
!
interface FastEthernet0/0
no ip address
duplex full
bridge-group 1
!
interface Serial2/0
no ip address
encapsulation frame-relay
serial restart-delay 0
frame-relay map bridge 102 broadcast
no frame-relay inverse-arp
bridge-group 1
!
interface Serial2/1
ip address 154.1.13.1 255.255.255.0
serial restart-delay 0
!
interface BVI1
ip address 192.10.1.1 255.255.255.0
!
router ospf 1
router-id 150.1.1.1
log-adjacency-changes
area 51 range 150.1.0.0 255.255.252.0
network 150.1.1.1 0.0.0.0 area 51
network 154.1.13.1 0.0.0.0 area 0
network 192.10.1.1 0.0.0.0 area 51
!
ip classless
no ip http server
!
bridge 1 protocol ieee
bridge 1 route ip
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This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:42 ART