CISCO OSPF 自动负载均衡

 

 

 

CISCO OSPF 自动负载均衡

要点：端口开销值设置相同。

 

 

 

 

配置命令：

R0配置：
Router>en
Router#config t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname r0
r0(config)#
r0(config)#int e1/0
r0(config-if)#ip address 192.168.20.2 255.255.255.0
r0(config-if)#no shutdown
r0(config)#int e1/1
r0(config-if)#ip address 192.168.30.1 255.255.255.0
r0(config-if)#no shutdown
r0(config-if)#exit
r0(config)#router ospf 100
r0(config-router)#net
r0(config-router)#network 192.168.20.0 0.0.0.255 area 0
r0(config-router)#network 192.168.30.0 0.0.0.255 area 0
r0(config-router)#exit
r0(config)#int e1/1
r0(config-if)#ip ospf cost 2
r0(config-if)#int e1/0
r0(config-if)#ip ospf cost 2
r0(config-if)#end
r0#ping 192.168.40.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.40.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 64/93/1

==========================================================================

 

Router>en
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname r3
r3(config)#int loopback 0
r3(config-if)#ip address 10.10.10.10 255.255.255.255
r3(config-if)#no shutdown
r3(config-if)#int e1/1
r3(config-if)#ip address 192.168.40.2 255.255.255.0
r3(config-if)#no shutdown
r3(config-if)#int e1/0
r3(config-if)#ip address 192.168.30.2 255.255.255.0
r3(config-if)#no shutdown
r3(config-if)#exit
r3(config)#router ospf 100
r3(config-router)#network 192.168.30.0 0.0.0.255 area 0
r3(config-router)#network 192.168.40.0 0.0.0.255 area 0
r3(config-router)#exit
r3(config)#int e1/0
r3(config-if)#ip ospf cost 2
r3(config-if)#int e1/1
r3(config-if)#ip ospf cost 2
r3(config-if)#exit
r3(config)#router ospf 100
r3(config-router)#network 10.10.10.10 0.0.0.0 area 0
r3(config-router)#end
r3#show ip ospf database

            OSPF Router with ID (10.10.10.10) (Process ID 100)

                Router Link States (Area 0)

Link ID         ADV Router      Age         Seq#       Checksum Link count
10.10.10.10     10.10.10.10     180         0x80000007 0x001A3D 3
192.168.20.1    192.168.20.1    359         0x80000006 0x0074C4 2
192.168.30.1    192.168.30.1    323         0x80000005 0x00906B 2
192.168.40.1    192.168.40.1    401         0x80000006 0x00E8FD 2

                Net Link States (Area 0)

Link ID         ADV Router      Age         Seq#       Checksum
192.168.10.1    192.168.20.1    445         0x80000001 0x0068CD
192.168.20.1    192.168.20.1    359         0x80000001 0x0077BE
192.168.30.2    10.10.10.10     353         0x80000001 0x007C5B
192.168.40.2    10.10.10.10     433         0x80000001 0x009033
r3#

 

====================================================================

 

 

Router>en
Router#config t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname r2
r2(config)#int e1/0
r2(config-if)#ip address 192.168.20.1 255.255.255.0
r2(config-if)#no shutdown
r2(config)#int e1/1
r2(config-if)#ip address 192.168.10.1 255.255.255.0
r2(config-if)#no shutdown
r2(config-if)#exit
r2(config)#router ospf 100
r2(config-router)#network 192.168.10.0 0.0.0.255 area 0
r2(config-router)#network 192.168.20.0 0.0.0.255 area 0
r2(config-router)#exit
r2(config)#int e1/0
r2(config-if)#ip ospf cos
r2(config-if)#ip ospf cost 2
r2(config-if)#int e1/1
r2(config-if)#ip ospf cost 2
r2#traceroute 10.10.10.10

Type escape sequence to abort.
Tracing the route to 10.10.10.10

  1 192.168.10.2 100 msec
    192.168.20.2 64 msec
    192.168.10.2 60 msec
  2 192.168.30.2 92 msec
    192.168.40.2 84 msec
    192.168.30.2 116 msec
r2#