IT博客-苏志辉技术博客-随笔分类-CCNP

IS-IS Over FR

苏志辉 — Sat, 06 Jun 2009 23:25:00 GMT

IS-IS Over FR

1）IS-IS没有为FR设定特定的网络类型，所以FR全互联时可以Broadcast网络类型，否则更改为P2P网络类型

实验------P2P
连接两端都需要改成点到点子接口方式连接

实验------Broadcast
--------------------------------
                        R1
                         |(S1/0)
                         |
R2(S1/0)------FR-SW-------(S1/0)R3
--------------------------------
1.非全互联时DIS可能选举不对
R1------------R2
R1------------R3
配置如下
R1：
interface Loopback0
ip address 1.1.1.1 255.255.255.0
ip router isis
!
interface Serial1/0
ip address 192.168.123.1 255.255.255.0
ip router isis
encapsulation frame-relay
serial restart_delay 0
frame-relay map clns 103 broadcast //有这条才能建立邻居，学路由哦
frame-relay map clns 102 broadcast
no frame-relay inverse-arp
!
router isis
net 49.0001.0000.0000.1111.00
is-type level-1
!
R2：
interface Loopback0
ip address 2.2.2.2 255.255.255.0
ip router isis
!
interface Serial1/0
ip address 192.168.123.2 255.255.255.0
ip router isis
encapsulation frame-relay
serial restart_delay 0
frame-relay map clns 201 broadcast
no frame-relay inverse-arp
!
router isis
net 49.0001.0000.0000.2222.00
is-type level-1
!
R3：
interface Loopback0
ip address 3.3.3.3 255.255.255.0
ip router isis
!
interface Serial1/0
ip address 192.168.123.3 255.255.255.0
ip router isis
encapsulation frame-relay
serial restart_delay 0
frame-relay map clns 301 broadcast
no frame-relay inverse-arp
!
router isis
net 49.0001.0000.0000.3333.00
is-type level-1
!
------------------------------------------------------------------------
查看邻居和路由信息
R1#show clns neighbors

System Id      Interface   SNPA                State Holdtime Type Protocol
R2             Se1/0       DLCI 102            Up     7         L1   IS-IS
R3             Se1/0       DLCI 103            Up     7         L1   IS-IS
R1查看R3为DIS
R1#show clns interface s1/0
Serial1/0 is up, line protocol is up
Checksums enabled, MTU 1500, Encapsulation FRAME-RELAY
ERPDUs enabled, min. interval 10 msec.
CLNS fast switching enabled
CLNS SSE switching disabled
DEC compatibility mode OFF for this interface
Next ESH/ISH in 30 seconds
Routing Protocol: IS-IS
    Circuit Type: level-1-2
    Interface number 0x1, local circuit ID 0x2
    Level-1 Metric: 10, Priority: 64, Circuit ID: R3.01
    Level-1 IPv6 Metric: 10
    Number of active level-1 adjacencies: 2
    Next IS-IS LAN Level-1 Hello in 844 milliseconds
R1
R2查看R2为DIS
R2#show clns in
R2#show clns interface s1/0
Serial1/0 is up, line protocol is up
Checksums enabled, MTU 1500, Encapsulation FRAME-RELAY
ERPDUs enabled, min. interval 10 msec.
CLNS fast switching enabled
CLNS SSE switching disabled
DEC compatibility mode OFF for this interface
Next ESH/ISH in 3 seconds
Routing Protocol: IS-IS
    Circuit Type: level-1-2
    Interface number 0x1, local circuit ID 0x2
    Level-1 Metric: 10, Priority: 64, Circuit ID: R2.02
    Level-1 IPv6 Metric: 10
    Number of active level-1 adjacencies: 1
    Next IS-IS LAN Level-1 Hello in 2 seconds
R2#
查看ISIS数据库
R1#show isis database

IS-IS Level-1 Link State Database:
LSPID                 LSP Seq Num LSP Checksum LSP Holdtime      ATT/P/OL
R1.00-00            * 0x0000000E   0x995F        689               0/0/0
R2.00-00              0x0000000C   0xBB36        752               0/0/0
R2.02-00              0x00000002   0xE7C3        662               0/0/0
R3.00-00              0x00000009   0x01A8        789               0/0/0
R3.01-00              0x00000002   0x99CE        655               0/0/0
R1#
R2#show isis database

IS-IS Level-1 Link State Database:
LSPID                 LSP Seq Num LSP Checksum LSP Holdtime      ATT/P/OL
R1.00-00              0x0000000E   0x995F        651               0/0/0
R2.00-00            * 0x0000000C   0xBB36        718               0/0/0
R2.02-00            * 0x00000002   0xE7C3        628               0/0/0
R3.00-00              0x00000009   0x01A8        752               0/0/0
R2#
R3#show isis database

IS-IS Level-1 Link State Database:
LSPID                 LSP Seq Num LSP Checksum LSP Holdtime      ATT/P/OL
R1.00-00              0x0000000E   0x995F        643               0/0/0
R2.00-00              0x0000000C   0xBB36        707               0/0/0
R2.02-00              0x00000002   0xE7C3        617               0/0/0
R3.00-00            * 0x00000009   0x01A8        748               0/0/0
R3.01-00            * 0x00000002   0x99CE        614               0/0/0
R3#
路由学不全，没有R2的路由哦
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

C    192.168.123.0/24 is directly connected, Serial1/0
     1.0.0.0/24 is subnetted, 1 subnets
C       1.1.1.0 is directly connected, Loopback0
     3.0.0.0/24 is subnetted, 1 subnets
i L1    3.3.3.0 [115/20] via 192.168.123.3, Serial1/0
R1#
2.非全互联时DIS可能选举不对，尽管DIS选对了，也无法算路由
将R1的S1/0口ISIS优先级提高
R1(config)#int s1/0
R1(config-if)#isis priority 65
R1(config-if)#exit
R1(config)#
R1#show clns interface s1/0
Serial1/0 is up, line protocol is up
Checksums enabled, MTU 1500, Encapsulation FRAME-RELAY
ERPDUs enabled, min. interval 10 msec.
CLNS fast switching enabled
CLNS SSE switching disabled
DEC compatibility mode OFF for this interface
Next ESH/ISH in 6 seconds
Routing Protocol: IS-IS
    Circuit Type: level-1-2
    Interface number 0x1, local circuit ID 0x2
    Level-1 Metric: 10, Priority: 65, Circuit ID: R1.02
    Level-1 IPv6 Metric: 10
    Number of active level-1 adjacencies: 2
    Next IS-IS LAN Level-1 Hello in 2 seconds
R1#
R2#show clns interface s1/0
Serial1/0 is up, line protocol is up
Checksums enabled, MTU 1500, Encapsulation FRAME-RELAY
ERPDUs enabled, min. interval 10 msec.
CLNS fast switching enabled
CLNS SSE switching disabled
DEC compatibility mode OFF for this interface
Next ESH/ISH in 31 seconds
Routing Protocol: IS-IS
    Circuit Type: level-1-2
    Interface number 0x1, local circuit ID 0x2
    Level-1 Metric: 10, Priority: 64, Circuit ID: R1.02
    Level-1 IPv6 Metric: 10
    Number of active level-1 adjacencies: 1
    Next IS-IS LAN Level-1 Hello in 1 seconds
R2#
R3#show clns interface s1/0
Serial1/0 is up, line protocol is up
Checksums enabled, MTU 1500, Encapsulation FRAME-RELAY
ERPDUs enabled, min. interval 10 msec.
CLNS fast switching enabled
CLNS SSE switching disabled
DEC compatibility mode OFF for this interface
Next ESH/ISH in 18 seconds
Routing Protocol: IS-IS
    Circuit Type: level-1-2
    Interface number 0x0, local circuit ID 0x1
    Level-1 Metric: 10, Priority: 64, Circuit ID: R1.02
    Level-1 IPv6 Metric: 10
    Number of active level-1 adjacencies: 1
    Next IS-IS LAN Level-1 Hello in 620 milliseconds
R3#
但是在R2和R3上路由不全，R2没有R3的路由..,所以一定要全互联
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

C    192.168.123.0/24 is directly connected, Serial1/0
     1.0.0.0/24 is subnetted, 1 subnets
i L1    1.1.1.0 [115/20] via 192.168.123.1, Serial1/0
     2.0.0.0/24 is subnetted, 1 subnets
C       2.2.2.0 is directly connected, Loopback0
R2#
3.路由学到了，但可以通吗？
从R2到R1环回口的网络，不通。为什么？
R2#ping 1.1.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
帧中继中必须为IP做映射才可以通
R1(config)#int s1/0
R1(config-if)#frame-relay map ip 192.168.123.2 102
R1(config-if)#frame-relay map ip 192.168.123.3 103
R1(config-if)#end
R1#
R2(config)#int s1/0
R2(config-if)#frame-relay map ip 192.168.123.1 201
R2(config-if)#end
R2#ping 1.1.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/24/44 ms
R2#
R3(config)#int s1/0
R3(config-if)#frame-relay map ip 192.168.123.1 301
R3(config-if)#end
R3#

苏志辉 2009-06-07 07:25 发表评论

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

苏志辉 — Sat, 16 May 2009 08:37:00 GMT

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 **
****************************************************
--------------------------------
                        R1
                         |(S1/0)
                         |
R2(S1/0)------FR-SW-------(S1/0)R3
--------------------------------
1.
R1:
interface Loopback0
ip address 1.1.1.1 255.255.255.0
ip ospf network point-to-point
!
interface Serial1/0
ip address 123.1.1.1 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint 默认为广播网络
!
router ospf 100
router-id 1.1.1.1
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 0
network 123.1.1.1 0.0.0.0 area 0
!
R2:
interface Loopback0
ip address 2.2.2.2 255.255.255.0
ip ospf network point-to-point
!
interface Serial1/0
ip address 123.1.1.2 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
!
router ospf 200
router-id 2.2.2.2
log-adjacency-changes
network 2.2.2.2 0.0.0.0 area 0
network 123.1.1.2 0.0.0.0 area 0
!
R3:
interface Loopback0
ip address 3.3.3.3 255.255.255.0
ip ospf network point-to-point
!
interface Serial1/0
ip address 123.1.1.3 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
!
router ospf 300
router-id 3.3.3.3
log-adjacency-changes
network 3.3.3.3 0.0.0.0 area 0
network 123.1.1.3 0.0.0.0 area 0
!
----------------------------
R1#show ip ospf interface s1/0
Serial1/0 is up, line protocol is up
Internet Address 123.1.1.1/24, Area 0
Process ID 100, Router ID 1.1.1.1, Network Type POINT_TO_MULTIPOINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT,
Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
    oob-resync timeout 120
    Hello due in 00:00:08
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 2, Adjacent neighbor count is 2
    Adjacent with neighbor 3.3.3.3
    Adjacent with neighbor 2.2.2.2
Suppress hello for 0 neighbor(s)
R1#show frame-relay map 自动解析的DLCI具有Broadcast能力
Serial1/0 (up): ip 123.1.1.3 dlci 103(0x67,0x1870), dynamic,
              broadcast,, status defined, active
Serial1/0 (up): ip 123.1.1.2 dlci 102(0x66,0x1860), dynamic,
              broadcast,, status defined, active
R1#
---------------------
R1#debug ip ospf hello
OSPF hello events debugging is on
R1#
May 6 17:31:44.375: OSPF: Rcv hello from 3.3.3.3 area 0 from Serial1/0 123.1.1.3
May 6 17:31:44.379: OSPF: End of hello processing
R1#
May 6 17:31:48.267: OSPF: Send hello to 224.0.0.5 area 0 on Serial1/0 from 123.1.1.1
R1#
May 6 17:31:54.823: OSPF: Rcv hello from 2.2.2.2 area 0 from Serial1/0 123.1.1.2
May 6 17:31:54.827: OSPF: End of hello processing
R1#
May 6 17:32:14.347: OSPF: Rcv hello from 3.3.3.3 area 0 from Serial1/0 123.1.1.3
May 6 17:32:14.351: OSPF: End of hello processing
R1#
May 6 17:32:18.267: OSPF: Send hello to 224.0.0.5 area 0 on Serial1/0 from 123.1.1.1
R1#
May 6 17:32:24.807: OSPF: Rcv hello from 2.2.2.2 area 0 from Serial1/0 123.1.1.2
May 6 17:32:24.811: OSPF: End of hello processing
R1#
---------------------
R1#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
3.3.3.3           0   FULL/ -        00:01:40    123.1.1.3       Serial1/0
2.2.2.2           0   FULL/ -        00:01:44    123.1.1.2       Serial1/0
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 123.1.1.2, 00:00:12, Serial1/0
     3.0.0.0/24 is subnetted, 1 subnets
O       3.3.3.0 [110/65] via 123.1.1.3, 00:00:12, Serial1/0
     123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O       123.1.1.3/32 [110/64] via 123.1.1.3, 00:00:12, Serial1/0
O       123.1.1.2/32 [110/64] via 123.1.1.2, 00:00:12, Serial1/0
C       123.1.1.0/24 is directly connected, Serial1/0
R1#
===========================
手工映射DLCI Hub and Spoke类型 R1为Hub，R2和R3为Spoke
配置如下：
R1:
interface Loopback0
ip address 1.1.1.1 255.255.255.0
ip ospf network point-to-point
!
interface Serial1/0
ip address 123.1.1.1 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
frame-relay map ip 123.1.1.3 103 broadcast
frame-relay map ip 123.1.1.2 102 broadcast
no frame-relay inverse-arp
!
router ospf 100
router-id 1.1.1.1
log-adjacency-changes
network 1.1.1.1 0.0.0.0 area 0
network 123.1.1.1 0.0.0.0 area 0
!
R2:
interface Loopback0
ip address 2.2.2.2 255.255.255.0
ip ospf network point-to-point
!
interface Serial1/0
ip address 123.1.1.2 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
serial restart_delay 0
frame-relay map ip 123.1.1.1 201 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 123.1.1.2 0.0.0.0 area 0
!
R3:
interface Loopback0
ip address 3.3.3.3 255.255.255.0
ip ospf network point-to-point
!
interface Serial1/0
ip address 123.1.1.3 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
serial restart_delay 0
frame-relay map ip 123.1.1.1 301 broadcast
no frame-relay inverse-arp
!
router ospf 300
router-id 3.3.3.3
log-adjacency-changes
network 3.3.3.3 0.0.0.0 area 0
network 123.1.1.3 0.0.0.0 area 0
!
----------------------------
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 123.1.1.2, 00:05:34, Serial1/0
     3.0.0.0/24 is subnetted, 1 subnets
O       3.3.3.0 [110/65] via 123.1.1.3, 00:05:34, Serial1/0
     123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O       123.1.1.3/32 [110/64] via 123.1.1.3, 00:05:34, Serial1/0
O       123.1.1.2/32 [110/64] via 123.1.1.2, 00:05:34, Serial1/0
C       123.1.1.0/24 is directly connected, Serial1/0
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 123.1.1.1, 00:05:40, 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 123.1.1.1, 00:05:40, Serial1/0
     123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O       123.1.1.3/32 [110/128] via 123.1.1.1, 00:05:40, Serial1/0
O       123.1.1.1/32 [110/64] via 123.1.1.1, 00:05:40, Serial1/0
C       123.1.1.0/24 is directly connected, Serial1/0
R2#

苏志辉 2009-05-16 16:37 发表评论

OSPF Over NBMA----Point-to-Multimpoint NonBroadcast

苏志辉 — Sat, 16 May 2009 08:37:00 GMT

Neighbor ID     Pri   State           Dead Time   Address         Interface
3.3.3.3           0   FULL/ -        00:01:52    123.1.1.3       Serial1/0
2.2.2.2           0   FULL/ -        00:01:52    123.1.1.2       Serial1/0
--------------------------------
R1#show ip ospf int s1/0
Serial1/0 is up, line protocol is up
Internet Address 123.1.1.1/24, Area 0
Process ID 100, Router ID 1.1.1.1, Network Type POINT_TO_MULTIPOINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT,
Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
    oob-resync timeout 120
    Hello due in 00:00:12
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 2, Adjacent neighbor count is 2
    Adjacent with neighbor 3.3.3.3
    Adjacent with neighbor 2.2.2.2
Suppress hello for 0 neighbor(s)
R1#
----------------------
R1#debug ip ospf hello
OSPF hello events debugging is on
R1#
May 6 18:27:48.015: OSPF: Send hello to 0.0.0.1 area 0 on Serial1/0 from 123.1.1.1
May 6 18:27:48.055: OSPF: Rcv hello from 3.3.3.3 area 0 from Serial1/0 123.1.1.3
May 6 18:27:48.059: OSPF: End of hello processing
May 6 18:27:48.083: OSPF: Rcv hello from 2.2.2.2 area 0 from Serial1/0 123.1.1.2
May 6 18:27:48.083: OSPF: End of hello processing
R1#
May 6 18:28:18.019: OSPF: Send hello to 0.0.0.1 area 0 on Serial1/0 from 123.1.1.1
May 6 18:28:18.063: OSPF: Rcv hello from 3.3.3.3 area 0 from Serial1/0 123.1.1.3
May 6 18:28:18.067: OSPF: End of hello processing
May 6 18:28:18.099: OSPF: Rcv hello from 2.2.2.2 area 0 from Serial1/0 123.1.1.2
May 6 18:28:18.103: OSPF: End of hello processing
R1#
----------------------------
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

---------------------------
R2#traceroute 3.3.3.3

Type escape sequence to abort.
Tracing the route to 3.3.3.3

1 123.1.1.1 44 msec 28 msec 36 msec
2 123.1.1.3 20 msec * 40 msec
R2#

苏志辉 2009-05-16 16:37 发表评论

OSPF Over NBMA----NonBroadcast

苏志辉 — Sat, 16 May 2009 08:36:00 GMT

------------------------------
hello间隔为30s，单播更新
R1#debug ip ospf hello
OSPF hello events debugging is on
R1#
May 6 16:34:38.471: OSPF: Send hello to 0.0.0.1 area 0 on Serial1/0 from 123.1.1.1
R1#
May 6 16:34:44.999: OSPF: Rcv hello from 3.3.3.3 area 0 from Serial1/0 123.1.1.3
May 6 16:34:45.003: OSPF: End of hello processing
R1#
May 6 16:34:57.035: OSPF: Rcv hello from 2.2.2.2 area 0 from Serial1/0 123.1.1.2
May 6 16:34:57.039: OSPF: End of hello processing
R1#
May 6 16:35:08.475: OSPF: Send hello to 0.0.0.1 area 0 on Serial1/0 from 123.1.1.1
R1#
May 6 16:35:15.019: OSPF: Rcv hello from 3.3.3.3 area 0 from Serial1/0 123.1.1.3
May 6 16:35:15.023: OSPF: End of hello processing
R1#
May 6 16:35:27.059: OSPF: Rcv hello from 2.2.2.2 area 0 from Serial1/0 123.1.1.2
May 6 16:35:27.063: OSPF: End of hello processing
R1#
May 6 16:35:38.479: OSPF: Send hello to 0.0.0.1 area 0 on Serial1/0 from 123.1.1.1
R1#
-----------------------
需要选择DR/BDR的,可以手工选择，通过 neighbor 123.1.1.1 priority 1的优先级来调整
R1#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
3.3.3.3           1   FULL/DR         00:01:35    123.1.1.3       Serial1/0
2.2.2.2           1   FULL/DROTHER    00:01:47    123.1.1.2       Serial1/0
R1#
-----------------------
查看接口的OSPF网络类型
R1#show ip ospf interface s1/0
Serial1/0 is up, line protocol is up
Internet Address 123.1.1.1/24, Area 0
Process ID 100, Router ID 1.1.1.1, Network Type NON_BROADCAST, Cost: 64 为NonBroadcast类型
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 3.3.3.3, Interface address 123.1.1.3
Backup Designated router (ID) 1.1.1.1, Interface address 123.1.1.1
Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
    oob-resync timeout 120
    Hello due in 00:00:05
Index 2/2, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 1
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 2, Adjacent neighbor count is 2
    Adjacent with neighbor 3.3.3.3 (Designated Router)
    Adjacent with neighbor 2.2.2.2
Suppress hello for 0 neighbor(s)
R1#show frame-relay map
Serial1/0 (up): ip 123.1.1.3 dlci 103(0x67,0x1870), static,
              CISCO, status defined, active
Serial1/0 (up): ip 123.1.1.2 dlci 102(0x66,0x1860), static,
              CISCO, status defined, active
R1#
-----------------------
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 123.1.1.2, 00:01:08, Serial1/0
     3.0.0.0/24 is subnetted, 1 subnets
O       3.3.3.0 [110/65] via 123.1.1.3, 00:01:08, Serial1/0
     123.0.0.0/24 is subnetted, 1 subnets
C       123.1.1.0 is directly connected, Serial1/0
R1#

苏志辉 2009-05-16 16:36 发表评论

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

苏志辉 — Wed, 13 May 2009 06:03:00 GMT

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
R2#

苏志辉 2009-05-13 14:03 发表评论

OSPF Over NBMA----Broadcast

苏志辉 — Wed, 13 May 2009 06:02:00 GMT

interface Serial1/0
ip address 123.1.1.2 255.255.255.0
encapsulation frame-relay
ip ospf network broadcast
frame-relay map ip 123.1.1.3 203 broadcast
frame-relay map ip 123.1.1.1 201 broadcast
no frame-relay inverse-arp
!
router ospf 100
router-id 2.2.2.2
log-adjacency-changes
network 2.2.2.2 0.0.0.0 area 0
network 123.1.1.2 0.0.0.0 area 0
!
R3#show run
interface Loopback0
ip address 3.3.3.3 255.255.255.0
ip ospf network point-to-point
!
interface Serial1/0
ip address 123.1.1.3 255.255.255.0
encapsulation frame-relay
ip ospf network broadcast
frame-relay map ip 123.1.1.1 301 broadcast
frame-relay map ip 123.1.1.2 302 broadcast
no frame-relay inverse-arp
!
router ospf 100
router-id 3.3.3.3
log-adjacency-changes
network 3.3.3.3 0.0.0.0 area 0
network 123.1.1.3 0.0.0.0 area 0
!
R1#show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
3.3.3.3           1   FULL/DR         00:00:35    123.1.1.3       Serial0
2.2.2.2           1   FULL/BDR        00:00:31    123.1.1.2       Serial0
R1#

苏志辉 2009-05-13 14:02 发表评论

OSPF DATABASE ----LSA类型

苏志辉 — Mon, 11 May 2009 08:04:00 GMT

摘要: 阅读全文

苏志辉 2009-05-11 16:04 发表评论

按需路由选择（ODR）原理及实验

苏志辉 — Mon, 11 May 2009 08:04:00 GMT

摘要: 阅读全文

苏志辉 2009-05-11 16:04 发表评论