OSPF Over NBMA----Point-to-Point

网络类型
1.Broadcast
2.NonBroadcast
3.Point-to-Multimpoint
4.Point-to-Multimpoint NonBroadcast
5.Point-to-Point
****************************************************
**OSPF网络类型   DR/BDR        手工邻居        HELLO        单播/组播 **
**   P2P                 ---            ---             10S             组   **
**   P2MP               ---            ---             30S            单/组 **
**   NBMA                √             √              30S             单  **
**   Broadcast          √             ---            10S             组  **
**   P2MP-NBMA      ---             √              30S             单  **
****************************************************
--------------------------------

R2(S1/0)------FR-SW-------(S1/0.2)R1(S1/0.3)----FR-SW-------(S1/0)R3

--------------------------------
R1:
interface Loopback0
 ip address 1.1.1.1 255.255.255.0
 ip ospf network point-to-point
!        
interface Serial1/0
 no ip address
 encapsulation frame-relay
 no frame-relay inverse-arp
!
interface Serial1/0.2 point-to-point
 ip address 12.1.1.1 255.255.255.0
 frame-relay interface-dlci 102  
!
interface Serial1/0.3 point-to-point
 ip address 13.1.1.1 255.255.255.0
 frame-relay interface-dlci 103  
!
router ospf 100
 router-id 1.1.1.1
 log-adjacency-changes
 network 1.1.1.1 0.0.0.0 area 0
 network 12.1.1.1 0.0.0.0 area 0
 network 13.1.1.1 0.0.0.0 area 0
!
R2:手工映射DLCI
interface Loopback0
 ip address 2.2.2.2 255.255.255.0
 ip ospf network point-to-point
!
interface Serial1/0
 ip address 12.1.1.2 255.255.255.0
 encapsulation frame-relay
 ip ospf network point-to-point
 serial restart_delay 0
 frame-relay map ip 12.1.1.1 201 broadcast
 no frame-relay inverse-arp
!
router ospf 200
 router-id 2.2.2.2
 log-adjacency-changes
 network 2.2.2.2 0.0.0.0 area 0
 network 12.1.1.2 0.0.0.0 area 0
!
R3:自动解析DLCI 为Broadcast类型
interface Loopback0
 ip address 3.3.3.3 255.255.255.0
 ip ospf network point-to-point
!
interface Serial1/0
 ip address 13.1.1.3 255.255.255.0
 encapsulation frame-relay
 ip ospf network point-to-point
 serial restart_delay 0
!
router ospf 300
 router-id 3.3.3.3
 log-adjacency-changes
 network 3.3.3.3 0.0.0.0 area 0
 network 13.1.1.3 0.0.0.0 area 0
!
--------------
R1#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
3.3.3.3           0   FULL/  -        00:00:34    13.1.1.3        Serial1/0.3
2.2.2.2           0   FULL/  -        00:00:32    12.1.1.2        Serial1/0.2
R1#
R2#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
1.1.1.1           0   FULL/  -        00:00:36    12.1.1.1        Serial1/0
R2#
R3#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
1.1.1.1           0   FULL/  -        00:00:38    13.1.1.1        Serial1/0
R3#
---------------------------------
R1#show ip ospf interface s1/0.2
Serial1/0.2 is up, line protocol is up
  Internet Address 12.1.1.1/24, Area 0
  Process ID 100, Router ID 1.1.1.1, Network Type POINT_TO_POINT, Cost: 64
  Transmit Delay is 1 sec, State POINT_TO_POINT,
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    Hello due in 00:00:06
  Index 2/2, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 1
  Last flood scan time is 0 msec, maximum is 4 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 2.2.2.2
  Suppress hello for 0 neighbor(s)
R1#
----------------------------------
R1#
May  6 18:59:02.683: OSPF: Rcv hello from 2.2.2.2 area 0 from Serial1/0.2 12.1.1.2
May  6 18:59:02.687: OSPF: End of hello processing
May  6 18:59:03.291: OSPF: Send hello to 224.0.0.5 area 0 on Serial1/0.2 from 12.1.1.1
R1#
May  6 18:59:04.835: OSPF: Rcv hello from 3.3.3.3 area 0 from Serial1/0.3 13.1.1.3
May  6 18:59:04.835: OSPF: End of hello processing
R1#
May  6 18:59:10.459: OSPF: Send hello to 224.0.0.5 area 0 on Serial1/0.3 from 13.1.1.1
R1#
May  6 18:59:12.671: OSPF: Rcv hello from 2.2.2.2 area 0 from Serial1/0.2 12.1.1.2
May  6 18:59:12.675: OSPF: End of hello processing
May  6 18:59:13.291: OSPF: Send hello to 224.0.0.5 area 0 on Serial1/0.2 from 12.1.1.1
R1#
----------------------------
R1#show frame-relay map
Serial1/0.2 (up): point-to-point dlci, dlci 102(0x66,0x1860), broadcast
          status defined, active
Serial1/0.3 (up): point-to-point dlci, dlci 103(0x67,0x1870), broadcast
          status defined, active
R1#
R2#show frame-relay map
Serial1/0 (up): ip 12.1.1.1 dlci 201(0xC9,0x3090), static,
              broadcast,
              CISCO, status defined, active
Serial1/0 (up): ip 13.1.1.3 dlci 213(0xD5,0x3450), dynamic,
              broadcast,, status defined, active
R2#
R3#show frame-relay map
Serial1/0 (up): ip 12.1.1.2 dlci 312(0x138,0x4C80), dynamic,
              broadcast,, status defined, active
Serial1/0 (up): ip 13.1.1.1 dlci 301(0x12D,0x48D0), dynamic,
              broadcast,, status defined, active
R3#

--------------------------------
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
       * - candidate default, U - per-user static route, o - ODR
       P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/24 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, Loopback0
     2.0.0.0/24 is subnetted, 1 subnets
O       2.2.2.0 [110/65] via 12.1.1.2, 00:08:05, Serial1/0.2
     3.0.0.0/24 is subnetted, 1 subnets
O       3.3.3.0 [110/65] via 13.1.1.3, 00:08:05, Serial1/0.3
     12.0.0.0/24 is subnetted, 1 subnets
C       12.1.1.0 is directly connected, Serial1/0.2
     13.0.0.0/24 is subnetted, 1 subnets
C       13.1.1.0 is directly connected, Serial1/0.3
R1#
R2#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
       * - candidate default, U - per-user static route, o - ODR
       P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/24 is subnetted, 1 subnets
O       1.1.1.0 [110/65] via 12.1.1.1, 00:07:32, Serial1/0
     2.0.0.0/24 is subnetted, 1 subnets
C       2.2.2.0 is directly connected, Loopback0
     3.0.0.0/24 is subnetted, 1 subnets
O       3.3.3.0 [110/129] via 12.1.1.1, 00:07:32, Serial1/0
     12.0.0.0/24 is subnetted, 1 subnets
C       12.1.1.0 is directly connected, Serial1/0
     13.0.0.0/24 is subnetted, 1 subnets
O       13.1.1.0 [110/128] via 12.1.1.1, 00:07:32, Serial1/0
R2#
-------------------
R2#traceroute 3.3.3.3

Type escape sequence to abort.
Tracing the route to 3.3.3.3

  1 12.1.1.1 36 msec 60 msec 16 msec
  2 13.1.1.3 48 msec *  52 msec
R2#
R2#traceroute 13.1.1.3

Type escape sequence to abort.
Tracing the route to 13.1.1.3

  1 12.1.1.1 24 msec 28 msec 8 msec
  2 13.1.1.3 56 msec *  36 msec