HCIP中期实验

 

7、公司总部双出口设备运行BGP协议连接骨干网络，  AS号为100

8、因为R1和R2重发布时会出现次优路径，需要修改BGP路由优先级，使用命令（preference 140 255 255，仅在总部设备上配置即可），配置位置在iPv4-family unicast中。

公司骨干网：

1、为保障公司网络连通性，骨干网络考虑设备冗余操作，连接总部使用双路由器，骨干网络部分路由器

之间使用双链路路方式

2、骨干网设备运行OSPF协议达到骨干网全网可达，进程号为10。

3、骨干网设备运行BGP协议， AS号为200。使用全连接方式建邻。

优化：

1、为达到分流互备效果，公司总部业务部访问分部流量走R1 ， R2做备份；公司总部工程部访问分部流 量走R2 ， R1做备份，并要求来回路径一致。

2、公司总部双出口流量均流向R5 ， R6做备份。来回路径一致。

3、OSPF重发布时，更改类型为Type-1

4、所有策略名称为policy-1

5、更改开销时，全部更改为10

拓扑

IP地址规划

 1.配置二层交换

R10

<Huawei>system-view

[Huawei]sysname R10

[R10]interface GigabitEthernet 0/0/1.1

[R10-GigabitEthernet0/0/1.1]ip address 192.168.3.254 24

[R10-GigabitEthernet0/0/1.1]dot1q termination vid 10

[R10-GigabitEthernet0/0/1.1]arp broadcast enable

[R10-GigabitEthernet0/0/1.1]quit

[R10]interface GigabitEthernet 0/0/1.2

[R10-GigabitEthernet0/0/1.2]ip address 192.168.4.254 24

[R10-GigabitEthernet0/0/1.2]dot1q termination vid 20

[R10-GigabitEthernet0/0/1.2]arp broadcast enable      

[R10-GigabitEthernet0/0/1.2]quit

PC5

PC6

SW1

<Huawei>system-view

[Huawei]sysname SW1

SW2

<Huawei>system-view

[Huawei]sysname SW2

SW3

<Huawei>system-view

[Huawei]sysname SW3

[SW3]vlan batch 10 20

[SW3]interface GigabitEthernet 0/0/2

[SW3-GigabitEthernet0/0/2]port link-type access              

[SW3-GigabitEthernet0/0/2]port default vlan 10

[SW3-GigabitEthernet0/0/2]quit

[SW3]interface GigabitEthernet 0/0/3

[SW3-GigabitEthernet0/0/3]port link-type access

[SW3-GigabitEthernet0/0/3]port default vlan 20

[SW3-GigabitEthernet0/0/3]quit

[SW3]interface GigabitEthernet 0/0/1

[SW3-GigabitEthernet0/0/1]port link-type trunk

[SW3-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20

[SW3-GigabitEthernet0/0/1]quit

测试

2.配置IP地址

R1

<Huawei>system-view

[Huawei]sysname R1

[R1]interface GigabitEthernet 0/0/0

[R1-GigabitEthernet0/0/0]ip address 192.168.100.9 30

[R1-GigabitEthernet0/0/0]quit

[R1]interface GigabitEthernet 0/0/1

[R1-GigabitEthernet0/0/1]ip address 10.10.10.41 30

[R1-GigabitEthernet0/0/1]quit

[R1]interface GigabitEthernet 0/0/2

[R1-GigabitEthernet0/0/2]ip address 192.168.100.17 30

[R1-GigabitEthernet0/0/2]quit

[R1-GigabitEthernet1/0/0]ip address 10.10.10.1 30

[R1-GigabitEthernet1/0/0]quit

[R1]interface GigabitEthernet 2/0/0

[R1-GigabitEthernet2/0/0]ip address 10.10.10.5 30

[R1-GigabitEthernet2/0/0]quit

[R1]interface LoopBack 0

[R1-LoopBack0]ip address 1.1.1.1 32

[R1-LoopBack0]quit

R2

<Huawei>system-view

[Huawei]sysname R2

[R2]interface GigabitEthernet 0/0/0

[R2-GigabitEthernet0/0/0]ip address 192.168.100.13 30

[R2-GigabitEthernet0/0/0]quit

[R2]interface GigabitEthernet 0/0/1

[R2-GigabitEthernet0/0/1]ip address 10.10.10.42 30

[R2-GigabitEthernet0/0/1]quit

[R2]interface GigabitEthernet 0/0/2

[R2-GigabitEthernet0/0/2]ip address 192.168.100.6 30

[R2-GigabitEthernet0/0/2]quit

[R2]interface GigabitEthernet 1/0/0

[R2-GigabitEthernet1/0/0]ip address 10.10.10.13 30

[R2-GigabitEthernet1/0/0]quit

[R2]interface GigabitEthernet 2/0/0

[R2-GigabitEthernet2/0/0]ip address 10.10.10.9 30

[R2-GigabitEthernet2/0/0]quit

[R2]interface LoopBack 0

[R2-LoopBack0]ip address 2.2.2.2 32

[R2-LoopBack0]quit

R3

<Huawei>system-view

[Huawei]sysname R3

[R3]interface GigabitEthernet 0/0/0

[R3-GigabitEthernet0/0/0]ip address 192.168.100.10 30

[R3]interface GigabitEthernet 0/0/1

[R3-GigabitEthernet0/0/1]ip address 192.168.1.254 24

[R3-GigabitEthernet0/0/1]quit

[R3]interface GigabitEthernet 0/0/2

[R3-GigabitEthernet0/0/2]ip address 192.168.100.1 30

[R3-GigabitEthernet0/0/2]quit

[R3]interface GigabitEthernet 1/0/0

[R3-GigabitEthernet1/0/0]ip address 192.168.100.5 30

[R3-GigabitEthernet1/0/0]quit

R4

<Huawei>system-view

[Huawei]sysname R4

[R4]interface GigabitEthernet 0/0/0

[R4-GigabitEthernet0/0/0]ip address 192.168.100.14 30

[R4-GigabitEthernet0/0/0]quit

[R4]interface GigabitEthernet 0/0/1

[R4-GigabitEthernet0/0/1]ip address 192.168.2.254 24

[R4-GigabitEthernet0/0/1]quit

[R4]interface GigabitEthernet 0/0/2

[R4-GigabitEthernet0/0/2]ip address 192.168.100.2 30

[R4-GigabitEthernet0/0/2]quit

[R4]interface GigabitEthernet 1/0/0

[R4-GigabitEthernet1/0/0]ip address 192.168.100.18 30

[R4-GigabitEthernet1/0/0]quit

R5

R5

<Huawei>system-view

[Huawei]sysname R5

[R5]interface GigabitEthernet 0/0/0

[R5-GigabitEthernet0/0/0]ip address 10.10.10.2 30

[R5-GigabitEthernet0/0/0]quit

[R5]interface GigabitEthernet 0/0/1

[R5-GigabitEthernet0/0/1]ip address 10.10.10.10 30

[R5-GigabitEthernet0/0/1]quit

[R5]interface GigabitEthernet 0/0/2

[R5-GigabitEthernet0/0/2]ip address 10.10.10.21 30

[R5-GigabitEthernet0/0/2]quit

[R5]interface GigabitEthernet 1/0/0

[R5-GigabitEthernet1/0/0]ip address 10.10.10.17 30

[R5-GigabitEthernet1/0/0]quit

[R5]interface LoopBack 0

[R5-LoopBack0]ip address 5.5.5.5 32

[R5-LoopBack0]quit

R6

<Huawei>system-view

[Huawei]sysname R6

[R6]interface GigabitEthernet 0/0/0

[R6-GigabitEthernet0/0/0]ip address 10.10.10.14 30

[R6-GigabitEthernet0/0/0]quit 

[R6]interface GigabitEthernet 0/0/2

[R6-GigabitEthernet0/0/2]ip address 10.10.10.25 30

[R6-GigabitEthernet0/0/2]quit

[R6]interface GigabitEthernet 0/0/1

[R6-GigabitEthernet0/0/1]quit 

[R6]interface GigabitEthernet 1/0/0

[R6-GigabitEthernet1/0/0]ip address 10.10.10.18 30

[R6-GigabitEthernet1/0/0]quit

[R6]interface LoopBack 0

[R6-LoopBack0]ip address 6.6.6.6 32

[R6-LoopBack0]quit

R7

<Huawei>system-view

[Huawei]sysname R7

[R7]interface GigabitEthernet 0/0/0

[R7-GigabitEthernet0/0/0]ip address 10.10.10.22 30

[R7-GigabitEthernet0/0/0]quit

[R7]interface GigabitEthernet 0/0/1

[R7-GigabitEthernet0/0/1]ip address 10.10.10.26 30

[R7-GigabitEthernet0/0/1]quit

[R7]interface GigabitEthernet 0/0/2

[R7-GigabitEthernet0/0/2]quit

[R7]interface GigabitEthernet 1/0/0

[R7-GigabitEthernet1/0/0]ip address 10.10.10.33 30

 [R7-GigabitEthernet1/0/0]quit

[R7]interface LoopBack 0

[R7-LoopBack0]ip address 7.7.7.7 32

[R7-LoopBack0]quit

R8

<Huawei>system-view

[Huawei]sysname R8

[R8]interface GigabitEthernet 0/0/0

[R8-GigabitEthernet0/0/0]ip address 10.10.10.30 30

[R8-GigabitEthernet0/0/0]quit

[R8]interface GigabitEthernet 0/0/1

[R8-GigabitEthernet0/0/1]ip address 10.10.10.34 30     

[R8-GigabitEthernet0/0/1]quit

[R8]interface GigabitEthernet 0/0/2

[R8-GigabitEthernet0/0/2]ip address 10.10.10.37 30     

[R8-GigabitEthernet0/0/2]quit

[R8]interface LoopBack 0

[R8-LoopBack0]ip address 8.8.8.8 32

[R8-LoopBack0]quit

R9

<Huawei>system-view

[Huawei]sysname R9

[R9]interface GigabitEthernet 0/0/0

[R9-GigabitEthernet0/0/0]ip address 10.10.10.38 30

[R9-GigabitEthernet0/0/0]quit

[R9]interface GigabitEthernet 0/0/1                     

[R9-GigabitEthernet0/0/1]ip address 192.168.200.2 30

[R9-GigabitEthernet0/0/1]quit

[R9]interface LoopBack 0

[R9-LoopBack0]ip address 9.9.9.9 32

[R9-LoopBack0]quit

R10

[R10]interface GigabitEthernet 0/0/0

[R10-GigabitEthernet0/0/0]ip address 192.168.200.1 30

[R10-GigabitEthernet0/0/0]quit

[R10]interface LoopBack 0

[R10-LoopBack0]ip address 10.1.1.1 32

[R10-LoopBack0]quit

3.配置内部IGP协议OSPF

配置OSPF

OSPF路由宣告选择接口宣告方式

R1

[R1]ospf 100 router-id 1.1.1.1

[R1-ospf-100]area 0        

[R1-ospf-100-area-0.0.0.0]network 192.168.100.9 0.0.0.0

[R1-ospf-100-area-0.0.0.0]network 192.168.100.17 0.0.0.0

[R1-ospf-100-area-0.0.0.0]network 1.1.1.1 0.0.0.0

[R1-ospf-100-area-0.0.0.0]quit

[R1-ospf-100]quit

R2

[R2]ospf 100 router-id 2.2.2.2

[R2-ospf-100]area 0

[R2-ospf-100-area-0.0.0.0]network 192.168.100.6 0.0.0.0

[R2-ospf-100-area-0.0.0.0]network 192.168.100.13 0.0.0.0

[R2-ospf-100-area-0.0.0.0]network 2.2.2.2 0.0.0.0      

[R2-ospf-100-area-0.0.0.0]quit

[R2-ospf-100]quit

R3

[R3]ospf 100 router-id 3.3.3.3

[R3-ospf-100]area 0

[R3-ospf-100-area-0.0.0.0]network 192.168.100.1 0.0.0.0

[R3-ospf-100-area-0.0.0.0]network 192.168.100.5 0.0.0.0

[R3-ospf-100-area-0.0.0.0]network 192.168.100.10 0.0.0.0

[R3-ospf-100-area-0.0.0.0]network 192.168.1.254 0.0.0.0

[R3-ospf-100-area-0.0.0.0]quit

[R3-ospf-100]quit

R4

[R4]ospf 100 router-id 4.4.4.4

[R4-ospf-100]area 0

[R4-ospf-100-area-0.0.0.0]network 192.168.100.2 0.0.0.0

[R4-ospf-100-area-0.0.0.0]network 192.168.100.14 0.0.0.0

[R4-ospf-100-area-0.0.0.0]network 192.168.100.18 0.0.0.0

[R4-ospf-100-area-0.0.0.0]network 192.168.2.254 0.0.0.0

[R4-ospf-100-area-0.0.0.0]quit

[R4-ospf-100]quit

R5

[R5]ospf 10 router-id 5.5.5.5

[R5-ospf-10]a

[R5-ospf-10]area 0

[R5-ospf-10-area-0.0.0.0]network 10.10.10.17 0.0.0.0

[R5-ospf-10-area-0.0.0.0]network 10.10.10.21 0.0.0.0    

[R5-ospf-10-area-0.0.0.0]network 5.5.5.5 0.0.0.0   

[R5-ospf-10-area-0.0.0.0]quit

[R5-ospf-100]quit

R6

[R6]ospf 10 router-id 6.6.6.6

[R6-ospf-10]area 0

[R6-ospf-10-area-0.0.0.0]network 10.10.10.25 0.0.0.0

[R6-ospf-10-area-0.0.0.0]network 10.10.10.18 0.0.0.0

[R6-ospf-10-area-0.0.0.0]network 6.6.6.6 0.0.0.0

[R6-ospf-10-area-0.0.0.0]quit

[R6-ospf-100]quit

R7

[R7]ospf 10 router-id 7.7.7.7

[R7-ospf-10]area 0

[R7-ospf-10-area-0.0.0.0]network 10.10.10.29 0.0.0.0

[R7-ospf-10-area-0.0.0.0]network 10.10.10.33 0.0.0.0

[R7-ospf-10-area-0.0.0.0]network 10.10.10.22 0.0.0.0

[R7-ospf-10-area-0.0.0.0]network 10.10.10.26 0.0.0.0

[R7-ospf-10-area-0.0.0.0]network 7.7.7.7 0.0.0.0

[R7-ospf-10-area-0.0.0.0]quit

[R7-ospf-100]quit

R8

[R8]ospf 10 router-id 8.8.8.8

[R8-ospf-10]a

[R8-ospf-10]area 0

[R8-ospf-10-area-0.0.0.0]network 10.10.10.34 0.0.0.0

[R8-ospf-10-area-0.0.0.0]network 10.10.10.30 0.0.0.0

[R8-ospf-10-area-0.0.0.0]network 8.8.8.8 0.0.0.0 

[R8-ospf-10-area-0.0.0.0]quit

[R8-ospf-100]quit

R9

[R9]ospf 200 router-id 9.9.9.9

[R9-ospf-200]area 0

[R9-ospf-200-area-0.0.0.0]network 192.168.200.2 0.0.0.0

[R9-ospf-200-area-0.0.0.0]network 9.9.9.9 0.0.0.0  

[R9-ospf-200-area-0.0.0.0]quit

[R9-ospf-200]quit

R10

[R10]ospf 200 router-id 10.10.10.10

[R10-ospf-200]area 0

[R10-ospf-200-area-0.0.0.0]network 192.168.200.1 0.0.0.0

[R10-ospf-200-area-0.0.0.0]network 192.168.3.254 0.0.0.0

[R10-ospf-200-area-0.0.0.0]network 192.168.4.254 0.0.0.0

[R10-ospf-200-area-0.0.0.0]network 10.1.1.1 0.0.0.0    

[R10-ospf-200-area-0.0.0.0]quit

[R10-ospf-200]quit

 4.配置EGP协议BGP

因AS-PATH属性原因，总部与分部路由会学习不到，使用命令如（peer 10.10.10.10 allow-as- loop，仅在总部与分部设备上配置即可），将允许AS号重复

R1

[R1]bgp 100

[R1-bgp]router-id 1.1.1.1

[R1-bgp]peer 2.2.2.2 as-number 100

[R1-bgp]peer 2.2.2.2 connect-interface LoopBack 0

[R1-bgp]peer 10.10.10.2 as-number 200           

[R1-bgp]peer 10.10.10.6 as-number 200

[R1-bgp]peer 10.10.10.2 allow-as-loop  

[R1-bgp]peer 10.10.10.6 allow-as-loop

R2

[R2-bgp]router-id 2.2.2.2

[R2-bgp]peer 1.1.1.1 as-number 100

[R2-bgp]peer 1.1.1.1 connect-interface LoopBack 0

[R2-bgp]peer 10.10.10.14 as-number 200

[R2-bgp]peer 10.10.10.10 as-number 200

[R2-bgp]peer 10.10.10.10 allow-as-loop

[R2-bgp]peer 10.10.10.14 allow-as-loop

R5

[R5]bgp 200

[R5-bgp]router-id 5.5.5.5

[R5-bgp]peer 6.6.6.6 as-number 200

[R5-bgp]peer 6.6.6.6 connect-interface LoopBack 0

[R5-bgp]peer 6.6.6.6 next-hop-local

[R5-bgp]peer 7.7.7.7 as-number 200              

[R5-bgp]peer 7.7.7.7 connect-interface LoopBack 0

[R5-bgp]peer 7.7.7.7 next-hop-local             

[R5-bgp]peer 8.8.8.8 as-number 200              

[R5-bgp]peer 8.8.8.8 connect-interface LoopBack 0

[R5-bgp]peer 8.8.8.8 next-hop-local             

[R5-bgp]peer 10.10.10.1 as-number 100           

[R5-bgp]peer 10.10.10.9 as-number 100

[R5-bgp]quit

R6

[R6]bgp 200

[R6-bgp]router-id 6.6.6.6

[R6-bgp]peer 5.5.5.5 as-number 200

[R6-bgp]peer 5.5.5.5 connect-interface LoopBack  0

[R6-bgp]peer 5.5.5.5 next-hop-local

[R6-bgp]peer 7.7.7.7 as-number 200              

[R6-bgp]peer 7.7.7.7 connect-interface LoopBack 0

[R6-bgp]peer 7.7.7.7 next-hop-local             

[R6-bgp]peer 8.8.8.8 as-number 200              

[R6-bgp]peer 8.8.8.8 connect-interface LoopBack 0

[R6-bgp]peer 8.8.8.8 next-hop-local          

[R6-bgp]peer 10.10.10.5 as-number 100

[R6-bgp]peer 10.10.10.13 as-number 100

R7

[R7]bgp 200

[R7-bgp]router-id 7.7.7.7

[R7-bgp]peer 5.5.5.5 as-number 200

[R7-bgp]peer 5.5.5.5 connect-interface LoopBack 0

[R7-bgp]peer 5.5.5.5 next-hop-local

[R7-bgp]peer 6.6.6.6 as-number 200

[R7-bgp]peer 6.6.6.6 connect-interface LoopBack 0

[R7-bgp]peer 6.6.6.6 next-hop-local

[R7-bgp]peer 8.8.8.8 as-number 200

[R7-bgp]peer 8.8.8.8 connect-interface LoopBack 0

[R7-bgp]peer 8.8.8.8 next-hop-local

R8

[R8]bgp 200

[R8-bgp]router-id 8.8.8.8

[R8-bgp]peer 7.7.7.7 as-number 200

[R8-bgp]peer 7.7.7.7 connect-interface LoopBack 0

[R8-bgp]peer 7.7.7.7 next-hop-local

[R8-bgp]peer 5.5.5.5 as-number 200              

[R8-bgp]peer 5.5.5.5 connect-interface LoopBack 0

[R8-bgp]peer 5.5.5.5 next-hop-local

[R8-bgp]peer 6.6.6.6 as-number 200              

[R8-bgp]peer 6.6.6.6 connect-interface LoopBack 0

[R8-bgp]peer 6.6.6.6 next-hop-local

[R8-bgp]peer 10.10.10.38 as-number 100

   

R9

[R9]bgp 100

[R9-bgp]router-id 9.9.9.9

[R9-bgp]peer 10.10.10.37 as-number 200

[R9-bgp]peer 10.10.10.37 allow-as-loop

 5.BGP重发布到OSPF学习路由

OSPF重发布时，更改类型为Type-1

R1

[R1-ospf-100]import-route bgp type 1

R2

[R2-ospf-100]import-route bgp type 1

R9

[R9-ospf-200]import-route bgp type 1

查看BGP路由表

R1

R2

R5

R6

R7

R8

R9

PC1 ping PC3

6.优化

       为达到分流互备效果，公司总部业务部访问分部流量走R1 ， R2做备份；公司总部工程部访问分部流 量走R2 ， R1做备份，并要求来回路径一致。

R1

[R1]bgp 100

[R1-bgp]ipv4-family unicast

[R1-bgp-af-ipv4]preference 140 255 255

[R1-bgp-af-ipv4]quit

[R1-bgp]quit

[R1]ip ip-prefix policy-1 permit 192.168.2.0 24

[R1]route-policy policy-1 permit node 10

[R1-route-policy]if-match ip-prefix policy-1

[R1-route-policy]apply cost 10

[R1-route-policy]quit

[R1]route-policy policy-1 permit node 20

[R1-route-policy]quit

[R1]bgp 100

[R1-bgp]peer 10.10.10.2 route-policy policy-1 export

[R1-bgp]peer 10.10.10.6 route-policy policy-1 export

R2

[R2]bgp 100

[R2-bgp]ipv4-family unicast

[R2-bgp-af-ipv4]preference 140 255 255

[R2-bgp-af-ipv4]quit

[R2]ip ip-prefix policy-1 permit 192.168.1.0 24

[R2]route-policy policy-1 permit node 10

[R2-route-policy]if-match ip-prefix policy-1

[R2-route-policy]apply cost 10

[R2-route-policy]quit

[R2]route-policy policy-1 permit node 20

[R2-route-policy]quit

[R2]bgp 100

[R2-bgp]peer 10.10.10.10 route-policy policy-1 export

[R2-bgp]peer 10.10.10.14 route-policy policy-1 export

公司总部双出口流量均流向R5 ， R6做备份。来回路径一致。

R6

R6]route-policy policy-1 permit node 10

[R6-route-policy]apply cost 10

[R6-route-policy]quit

[R6]route-policy policy-1 permit node 20

[R6-route-policy]quit

[R6]bgp 200

[R6-bgp]peer 10.10.10.5 route-policy policy-1 export

[R6-bgp]peer 10.10.10.13 route-policy policy-1 export

[R6-bgp]quit

文章来源地址https://www.toymoban.com/news/detail-631198.html