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RIP计时器的时间配置案例

已有 1216 次阅读2013-2-18 09:38 | 计时器, RIP

1 案例配置拓扑

2 IP地址规划

	Fastethernet0/0	Fastethernet1/0
R1	192.16812.1/24	N/A
R2	192.168.12.2/24	192.168.23.2/24
R3	192.168.23.3/24	N/A

3 案例配置需求

1. R1、R2、R3三台路由器运行RIP协议。

2. 只修改R1的计时器时间，并查看修改后能否能学习到R3的路由条目

3. 查看计时器时间修改前和修改后的对比。

4 案例配置思路

1) 先配置R1、R2、R3的接口地址，并配置RIP协议。

(config)#interface fastEthernet 0/0

(config-if)#ip address x.x.x.x x.x.x.x

(config)#router rip //开启RIP协议//

(config-router)#no auto-summary //关闭自动汇总//

(config-router)#version 2 //版本为2//

(config-router)#network x.x.x.x

2) 修改R1的计时器时间

(config)#router rip

(config-router)#timers basic 5 20 30 40 //修改计时器的时间，更新时间为5S、失效时间为20S、保持时间为30S、删除时间为40S//

5 案例检验结果

1) 在还没修改计时器下，查看路由器的计时器时间：

R1#show ip protocols

Routing Protocol is "rip"

Outgoing ** filter list for all interfaces is not set

Incoming ** filter list for all interfaces is not set

Sending **s every 30 seconds, next due in 20 seconds

Invalid after 180 seconds, hold down 180, flushed after 240

Redistributing: rip

Default version control: send version 1, receive any version

Interface Send Recv Triggered RIP Key-chain

FastEthernet0/0 1 1 2

Automatic network summarization is not in effect

Maximum path: 4

Routing for Networks:

192.168.12.0

Routing Information Sources:

Gateway Distance Last **

192.168.12.2 120 00:00:11

Distance: (default is 120)

/上面显示的计时器时间是更新时间为30S、失效时间为180S、保持时间为180S、删除时间为240S/

2) 查看R1的路由表是否有学习到R3的路由条目：

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, su - IS-IS summary, 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 192.168.12.0/24 is directly connected, FastEthernet0/0

R 192.168.23.0/24 [120/1] via 192.168.12.2, 00:00:25, FastEthernet0/0

/上面显示的R表示学习到R3路由条目/

3) 开启debug ip rip来查看是否更新时间为30S：

RIP protocol debugging is on

R1#

*Mar 1 02:46:16.683: RIP: received v2 ** from 192.168.12.2 on FastEthernet0/0

*Mar 1 02:46:16.683: 192.168.23.0/24 via 0.0.0.0 in 1 hops

R1#

*Mar 1 02:46:25.047: RIP: sending v2 ** to 224.0.0.9 via FastEthernet0/0 (192.168.12.1)

*Mar 1 02:46:25.047: RIP: build ** entries - suppressing null **

R1#

*Mar 1 02:46:42.943: RIP: received v2 ** from 192.168.12.2 on FastEthernet0/0

*Mar 1 02:46:42.943: 192.168.23.0/24 via 0.0.0.0 in 1 hops

R1#

*Mar 1 02:46:51.971: RIP: sending v2 ** to 224.0.0.9 via FastEthernet0/0 (192.168.12.1)

*Mar 1 02:46:51.971: RIP: build ** entries - suppressing null **

/上面显示的是每30S发送一次组播更新/

4) 在R1中修改计时器时间后，查看R1路由器的计时器时间：

R1#show ip protocols

Routing Protocol is "rip"

Outgoing ** filter list for all interfaces is not set

Incoming ** filter list for all interfaces is not set

Sending **s every 5 seconds, next due in 1 seconds

Invalid after 20 seconds, hold down 30, flushed after 40

Redistributing: rip

Default version control: send version 1, receive any version

Interface Send Recv Triggered RIP Key-chain

FastEthernet0/0 1 1 2

Automatic network summarization is not in effect

Maximum path: 4

Routing for Networks:

192.168.12.0

Routing Information Sources:

Gateway Distance Last **

192.168.12.2 120 00:00:23

Distance: (default is 120)

/上面显示的是计时器时间改为更新时间为5S、失效时间为20S、保持时间为30S、删除时间为40S/

5) 查看R1修改计时器时间后，查看R1是否还能收到R3的路由条目：

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, su - IS-IS summary, 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 192.168.12.0/24 is directly connected, FastEthernet0/0

R 192.168.23.0/24 [120/1] via 192.168.12.2, 00:00:09, FastEthernet0/0

/上面显示的是R1能学习到R3的路由条目/

6) 开启debug ip rip来查看是否更新时间为5S：

R1#debug ip rip

RIP protocol debugging is on

R1#

*Mar 1 02:40:27.523: RIP: sending v2 ** to 224.0.0.9 via FastEthernet0/0 (192.168.12.1)

*Mar 1 02:40:27.523: RIP: build ** entries - suppressing null **

R1#

*Mar 1 02:40:32.291: RIP: sending v2 ** to 224.0.0.9 via FastEthernet0/0 (192.168.12.1)

*Mar 1 02:40:32.291: RIP: build ** entries - suppressing null **

/上面显示RIP此时每过5S发送一次更新包/

6 案例配置文件

R1:
hostname R1
!
interface FastEthernet0/0
ip address 192.168.12.1 255.255.255.0
ip rip advertise 5
duplex auto
speed auto
!
router rip
version 2
timers basic 5 20 30 40
network 192.168.12.0
no auto-summary
!
end

R2：

hostname R2
interface FastEthernet0/0
ip address 192.168.12.2 255.255.255.0
no shutdown
exit
!
interface FastEthernet1/0
ip address 192.168.23.2 255.255.255.0
no shutdown
exit
!
router rip
version 2
network 192.168.12.0
network 192.168.23.0
no auto-summary
!
end

R3：
hostname R3
interface FastEthernet0/0
ip address 192.168.23.3 255.255.255.0
no shutdown
exit
!
router rip
version 2
network 192.168.23.0
no auto-summary
!
end