华为 HCIP 实验 - BFD特性与配置 _ BFD与VRRP联动配置实验

目录

实验 6-3 BFD与VRRP联动配置实验

实验目标

拓扑图

场景

学习任务

步骤一.IP编址与基本配置

步骤二.OSPF和静态路由配置

步骤四.配置BFD联动


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实验 6-3 BFDVRRP联动配置实验

实验目标

·掌握BFD与VRRP联动检测非直连接口

拓扑图

场景

R1通过两台交换机S1、S2和R2、R3互连,R2和R3运行VRRP作为局域网内R4和R5的网关,R2工作在VRRP MASTER模式,R3工作在BACKUP模式。为了避免R2的非直连上行链路Down后,上行流量依旧从R2转发形成路由黑洞的问题,配置BFD联动VRRP,当R1和R2互联接口Down掉,立即降低R2的VRRP优先级,由R3作为MASTER转发上行流量。

学习任务

步骤一.IP编址与基本配置

给所有路由器配置IP地址信息。

<Huawei>system-view

Enter system view, return user view with Ctrl+Z.

[Huawei]sysname R1

[R1]interface LoopBack 0

[R1-LoopBack0]ip address 10.0.1.1 24

[R1-LoopBack0]quit

[R1]interface GigabitEthernet 0/0/1

[R1-GigabitEthernet0/0/1]ip address 10.0.12.1 24

[R1-GigabitEthernet0/0/1]quit

[R1]interface GigabitEthernet 0/0/2

[R1-GigabitEthernet0/0/2]ip address 10.0.13.1 24

[R1-GigabitEthernet0/0/2]quit

<Huawei>system-view

Enter system view, return user view with Ctrl+Z.

[Huawei]sysname R2

[R2]interface LoopBack 0

[R2-LoopBack0]ip address 10.0.2.2 24

[R2-LoopBack0]quit

[R2]interface GigabitEthernet 0/0/1

[R2-GigabitEthernet0/0/1]ip address 10.0.12.2 24

[R2-GigabitEthernet0/0/1]quit

[R2]interface GigabitEthernet 0/0/0

[R2-GigabitEthernet0/0/0]ip address 192.168.45.2 24

[R2-GigabitEthernet0/0/0]quit

<Huawei>system-view

Enter system view, return user view with Ctrl+Z.

[Huawei]sysname R3

[R3]interface LoopBack 0

[R3-LoopBack0]ip address 10.0.3.3 24

[R3-LoopBack0]quit

[R3]interface GigabitEthernet 0/0/2

[R3-GigabitEthernet0/0/2]ip address 10.0.13.2 24

[R3-GigabitEthernet0/0/2]quit

[R3]interface GigabitEthernet 0/0/0

[R3-GigabitEthernet0/0/0]ip address 192.168.45.3 24

[R3-GigabitEthernet0/0/0]quit

<Huawei>system-view

Enter system view, return user view with Ctrl+Z.

[Huawei]sysname R4

[R4]interface GigabitEthernet 0/0/0

[R4-GigabitEthernet0/0/0]ip address 192.168.45.4 24

[R4-GigabitEthernet0/0/0]quit

<Huawei>system-view

Enter system view, return user view with Ctrl+Z.

[Huawei]sysname R5

[R5]interface GigabitEthernet 0/0/0

[R5-GigabitEthernet0/0/0]ip address 192.168.45.5 24

[R5-GigabitEthernet0/0/0]quit

为避免干扰,在SW1和SW2上分别划分VLAN:

<Huawei>system-view

Enter system view, return user view with Ctrl+Z.

[Huawei]sysname SW1

[SW1]vlan 12

[SW1-vlan12]quit

[SW1]interface GigabitEthernet 0/0/1

[SW1-GigabitEthernet0/0/1]port link-type access

[SW1-GigabitEthernet0/0/1]port default vlan 12

[SW1-GigabitEthernet0/0/1]quit

[SW1]interface GigabitEthernet 0/0/2

[SW1-GigabitEthernet0/0/2]port link-type access

[SW1-GigabitEthernet0/0/2]port default vlan 12

[SW1-GigabitEthernet0/0/2]quit

<Huawei>system-view

Enter system view, return user view with Ctrl+Z.

[Huawei]sysname SW2

[SW2]vlan 13

[SW2-vlan13]quit

[SW2]interface GigabitEthernet 0/0/1

[SW2-GigabitEthernet0/0/1]port link-type access

[SW2-GigabitEthernet0/0/1]port default vlan 13

[SW2-GigabitEthernet0/0/1]quit

[SW2]interface GigabitEthernet 0/0/3

[SW2-GigabitEthernet0/0/3]port link-type access

[SW2-GigabitEthernet0/0/3]port default vlan 13

[SW2-GigabitEthernet0/0/3]quit

配置完毕后检查地址配置:

[R1]display ip interface brief

*down: administratively down

^down: standby

(l): loopback

(s): spoofing

(E): E-Trunk down

The number of interface that is UP in Physical is 9

The number of interface that is DOWN in Physical is 3

The number of interface that is UP in Protocol is 6

The number of interface that is DOWN in Protocol is 6

Interface                         IP Address/Mask      Physical   Protocol  

Cellular0/0/0                     unassigned           down       down      

Cellular0/0/1                     unassigned           down       down      

GigabitEthernet0/0/0             unassigned           up         down      

GigabitEthernet0/0/1             10.0.12.1/24         up         up        

GigabitEthernet0/0/2             10.0.13.1/24         up         up        

GigabitEthernet0/0/3             unassigned           up         down      

LoopBack0                          10.0.1.1/24          up         up(s)     

NULL0                              unassigned           up         up(s)     

Serial1/0/0                       unassigned           up         up        

Serial2/0/0                       unassigned           up         down      

Serial3/0/0                       unassigned           up         up        

Serial4/0/0                       unassigned           down       down      

[R2]display ip interface brief

*down: administratively down

^down: standby

(l): loopback

(s): spoofing

(E): E-Trunk down

The number of interface that is UP in Physical is 9

The number of interface that is DOWN in Physical is 4

The number of interface that is UP in Protocol is 6

The number of interface that is DOWN in Protocol is 7

Interface                         IP Address/Mask      Physical   Protocol  

Cellular0/0/0                     unassigned           down       down      

Cellular0/0/1                     unassigned           down       down      

Ethernet4/0/0                    unassigned           down       down      

Ethernet4/0/1                    unassigned           down       down      

GigabitEthernet0/0/0             192.168.45.2/24        up         up        

GigabitEthernet0/0/1             10.0.12.2/24           up         up        

GigabitEthernet0/0/2             unassigned            up         down      

GigabitEthernet0/0/3             unassigned            up         down      

LoopBack0                       10.0.2.2/24            up         up(s)     

NULL0                            unassigned           up         up(s)     

Serial1/0/0                        unassigned           up         up        

Serial2/0/0                        unassigned           up         up        

Serial3/0/0                        unassigned           up         down      

[R3]dislay ip interface brief

*down: administratively down

^down: standby

(l): loopback

(s): spoofing

(E): E-Trunk down

The number of interface that is UP in Physical is 9

The number of interface that is DOWN in Physical is 4

The number of interface that is UP in Protocol is 6

The number of interface that is DOWN in Protocol is 7

Interface                         IP Address/Mask      Physical   Protocol  

Cellular0/0/0                     unassigned           down       down      

Cellular0/0/1                     unassigned           down       down      

Ethernet4/0/0                    unassigned           down       down      

Ethernet4/0/1                    unassigned           down       down      

GigabitEthernet0/0/0             192.168.45.3/24       up         up        

GigabitEthernet0/0/1             unassigned           up         down      

GigabitEthernet0/0/2             10.0.13.2/24          up         up        

GigabitEthernet0/0/3             unassigned           up         down      

LoopBack0                       10.0.3.3/24           up         up(s)     

NULL0                           unassigned           up         up(s)     

Serial1/0/0                       unassigned           up         down      

Serial2/0/0                       unassigned           up         up        

Serial3/0/0                       unassigned           up         up        

[R4]display ip interface brief

*down: administratively down

^down: standby

(l): loopback

(s): spoofing

(E): E-Trunk down

The number of interface that is UP in Physical is 6

The number of interface that is DOWN in Physical is 5

The number of interface that is UP in Protocol is 3

The number of interface that is DOWN in Protocol is 8

Interface                         IP Address/Mask      Physical   Protocol  

Cellular0/0/0                     unassigned           down       down      

Cellular0/0/1                     unassigned           down       down      

Ethernet2/0/0                    unassigned           up         down      

Ethernet2/0/1                    unassigned           down       down      

GigabitEthernet0/0/0             192.168.45.4/24      up         up        

GigabitEthernet0/0/1             unassigned           up         down      

GigabitEthernet0/0/2             unassigned           down       down      

GigabitEthernet0/0/3             unassigned           up         down      

NULL0                           unassigned           up         up(s)     

Serial1/0/0                       unassigned           up         up        

Serial1/0/1                       unassigned           down       down      

[R5]display ip interface brief

*down: administratively down

^down: standby

(l): loopback

(s): spoofing

(E): E-Trunk down

The number of interface that is UP in Physical is 6

The number of interface that is DOWN in Physical is 5

The number of interface that is UP in Protocol is 3

The number of interface that is DOWN in Protocol is 8

Interface                         IP Address/Mask      Physical   Protocol  

Cellular0/0/0                     unassigned           down       down      

Cellular0/0/1                     unassigned           down       down      

Ethernet2/0/0                    unassigned           up         down      

Ethernet2/0/1                    unassigned           down       down      

GigabitEthernet0/0/0            192.168.45.5/24        up         up        

GigabitEthernet0/0/1            unassigned            up         down      

GigabitEthernet0/0/2            unassigned           down       down      

GigabitEthernet0/0/3            unassigned           up         down      

NULL0                          unassigned           up         up(s)     

Serial1/0/0                      unassigned           up         up        

Serial1/0/1                      unassigned           down       down      

检查R1到R2和R3的连通性:

[R1]ping 10.0.12.2

  PING 10.0.12.2: 56  data bytes, press CTRL_C to break

    Request time out

    Reply from 10.0.12.2: bytes=56 Sequence=2 ttl=255 time=1 ms

    Reply from 10.0.12.2: bytes=56 Sequence=3 ttl=255 time=1 ms

    Reply from 10.0.12.2: bytes=56 Sequence=4 ttl=255 time=1 ms

    Reply from 10.0.12.2: bytes=56 Sequence=5 ttl=255 time=1 ms

  --- 10.0.12.2 ping statistics ---

    5 packet(s) transmitted

    4 packet(s) received

    20.00% packet loss

    round-trip min/avg/max = 1/1/1 ms

[R1]ping 10.0.13.2

  PING 10.0.13.2: 56  data bytes, press CTRL_C to break

    Request time out

    Reply from 10.0.13.2: bytes=56 Sequence=2 ttl=255 time=1 ms

    Reply from 10.0.13.2: bytes=56 Sequence=3 ttl=255 time=1 ms

    Reply from 10.0.13.2: bytes=56 Sequence=4 ttl=255 time=1 ms

    Reply from 10.0.13.2: bytes=56 Sequence=5 ttl=255 time=1 ms

  --- 10.0.13.2 ping statistics ---

    5 packet(s) transmitted

    4 packet(s) received

    20.00% packet loss

    round-trip min/avg/max = 1/1/1 ms

步骤二.OSPF静态路由配置

按照拓扑配置R1、R2和R3的OSPF,对于局域网的路由,通过network的方式引入OSPF,但需要启用silent-interface:

[R1]ospf 1

[R1-ospf-1]area 0

[R1-ospf-1-area-0.0.0.0]network 10.0.1.0 0.0.0.255

[R1-ospf-1-area-0.0.0.0]network 10.0.12.0 0.0.0.255

[R1-ospf-1-area-0.0.0.0]network 10.0.13.0 0.0.0.255

[R1-ospf-1-area-0.0.0.0]quit

[R1-ospf-1]quit

修改在R1上的OSPF开销,以便于下行流量的选路以R2方向为主:

[R1]interface GigabitEthernet 0/0/1

[R1-GigabitEthernet0/0/1]ospf cost 90

[R1-GigabitEthernet0/0/1]quit

[R1]interface GigabitEthernet 0/0/2

[R1-GigabitEthernet0/0/2]ospf cost 100

[R1-GigabitEthernet0/0/2]quit

[R2]ospf 1

[R2-ospf-1]silent-interface GigabitEthernet 0/0/0

[R2-ospf-1]area 0

[R2-ospf-1-area-0.0.0.0]network 10.0.2.0 0.0.0.255

[R2-ospf-1-area-0.0.0.0]network 10.0.12.0 0.0.0.255

[R2-ospf-1-area-0.0.0.0]network 192.168.45.0 0.0.0.255

[R2-ospf-1-area-0.0.0.0]quit

[R2-ospf-1]quit

[R2]interface GigabitEthernet 0/0/1

[R2-GigabitEthernet0/0/1]ospf cost 90

[R2-GigabitEthernet0/0/1]quit

[R3]ospf 1

[R3-ospf-1]silent-interface GigabitEthernet 0/0/0

[R3-ospf-1]area 0

[R3-ospf-1-area-0.0.0.0]network 10.0.3.0 0.0.0.255

[R3-ospf-1-area-0.0.0.0]network 192.168.45.0 0.0.0.255

[R3-ospf-1-area-0.0.0.0]network 10.0.13.0 0.0.0.255

[R3-ospf-1-area-0.0.0.0]quit

[R3-ospf-1]quit

[R3]interface GigabitEthernet 0/0/2

[R3-GigabitEthernet0/0/2]ospf cost 100

[R3-GigabitEthernet0/0/2]quit

OSPF邻居收敛后检查路由信息:

[R1]display ip routing-table protocol ospf

Route Flags: R - relay, D - download to fib

----------------------------------------------------------------------------

Public routing table : OSPF

         Destinations : 3        Routes : 3        

OSPF routing table status : <Active>

         Destinations : 3        Routes : 3

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       10.0.2.2/32  OSPF    10   90          D   10.0.12.2       GigabitEthernet0/0/1

       10.0.3.3/32  OSPF    10   100         D   10.0.13.2       GigabitEthernet0/0/2

   192.168.45.0/24  OSPF    10   91          D   10.0.12.2       GigabitEthernet0/0/1

OSPF routing table status : <Inactive>

         Destinations : 0        Routes : 0

[R2]display ip routing-table protocol ospf

Route Flags: R - relay, D - download to fib

----------------------------------------------------------------------------

Public routing table : OSPF

         Destinations : 3        Routes : 3        

OSPF routing table status : <Active>

         Destinations : 3        Routes : 3

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       10.0.1.1/32  OSPF    10   90          D   10.0.12.1       GigabitEthernet0/0/1

       10.0.3.3/32  OSPF    10   190         D   10.0.12.1       GigabitEthernet0/0/1

      10.0.13.0/24  OSPF    10   190         D   10.0.12.1       GigabitEthernet0/0/1

OSPF routing table status : <Inactive>

         Destinations : 0        Routes : 0

[R3]display ip routing-table protocol ospf

Route Flags: R - relay, D - download to fib

----------------------------------------------------------------------------

Public routing table : OSPF

         Destinations : 3        Routes : 3        

OSPF routing table status : <Active>

         Destinations : 3        Routes : 3

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

       10.0.1.1/32  OSPF    10   100         D   10.0.13.1       GigabitEthernet0/0/2

       10.0.2.2/32  OSPF    10   190         D   10.0.13.1       GigabitEthernet0/0/2

      10.0.12.0/24  OSPF    10   190         D   10.0.13.1       GigabitEthernet0/0/2

OSPF routing table status : <Inactive>

         Destinations : 0        Routes : 0

最后在R4和R5上配置默认路由指向VRRP地址:

[R4]ip route-static 0.0.0.0 0 192.168.45.1

[R5]ip route-static 0.0.0.0 0 192.168.45.1

步骤三.配置VRRP

在R2和R3的下行接口配置VRRP:

[R2]interface GigabitEthernet 0/0/0

[R2-GigabitEthernet0/0/0]vrrp vrid 45 virtual-ip 192.168.45.1

[R2-GigabitEthernet0/0/0]vrrp vrid 45 priority 150

[R2-GigabitEthernet0/0/0]quit

[R3]interface GigabitEthernet 0/0/0

[R3-GigabitEthernet0/0/0]vrrp vrid 45 virtual-ip 192.168.45.1

[R3-GigabitEthernet0/0/0]quit

检查VRRP主备状态:

[R2]display vrrp

  GigabitEthernet0/0/0 | Virtual Router 45

    State : Master

    Virtual IP : 192.168.45.1

    Master IP : 192.168.45.2

    PriorityRun : 150

    PriorityConfig : 150

    MasterPriority : 150

    Preempt : YES   Delay Time : 0 s

    TimerRun : 1 s

    TimerConfig : 1 s

    Auth type : NONE

    Virtual MAC : 0000-5e00-012d

    Check TTL : YES

    Config type : normal-vrrp

    Backup-forward : disabled

    Create time : 2016-09-25 15:18:54

    Last change time : 2016-09-25 15:18:57

[R3]display vrrp

  GigabitEthernet0/0/0 | Virtual Router 45

    State : Backup

    Virtual IP : 192.168.45.1

    Master IP : 192.168.45.2

    PriorityRun : 100

    PriorityConfig : 100

    MasterPriority : 150

    Preempt : YES   Delay Time : 0 s

    TimerRun : 1 s

    TimerConfig : 1 s

    Auth type : NONE

    Virtual MAC : 0000-5e00-012d

    Check TTL : YES

    Config type : normal-vrrp

    Backup-forward : disabled

    Create time : 2016-09-25 15:21:49

    Last change time : 2016-09-25 15:21:49

步骤四.配置BFD联动

在R1和R2上启用BFD,配置联动VRRP,如果BFD检测失效,立即降低优先级:

[R1]bfd

[R1-bfd]quit

[R1]bfd 1 bind peer-ip 192.168.45.2 source-ip 10.0.12.1 auto

[R1-bfd-session-1]commit

[R1-bfd-session-1]quit

[R2]bfd

[R2-bfd]quit

[R2]bfd 1 bind peer-ip 10.0.12.1 source-ip 192.168.45.2 auto

[R2-bfd-session-1]commit

[R2-bfd-session-1]quit

[R2]interface GigabitEthernet 0/0/0

[R2-GigabitEthernet0/0/0]vrrp vrid 45 track bfd-session session-name 1 reduce 60

检查联动配置:

[R2]display vrrp

  GigabitEthernet0/0/0 | Virtual Router 45

    State : Master

    Virtual IP : 192.168.45.1

    Master IP : 192.168.45.2

    PriorityRun : 150

    PriorityConfig : 150

    MasterPriority : 150

    Preempt : YES   Delay Time : 0 s

    TimerRun : 1 s

    TimerConfig : 1 s

    Auth type : NONE

    Virtual MAC : 0000-5e00-012d

    Check TTL : YES

    Config type : normal-vrrp

    Backup-forward : disabled

    Track BFD : 1  Priority reduced : 60

    BFD-session state : UP

    Create time : 2016-09-25 15:18:54

    Last change time : 2016-09-25 15:18:57

检查BFD的session:

[R2]display bfd session all

--------------------------------------------------------------------------------

Local Remote     PeerIpAddr      State     Type         InterfaceName           

--------------------------------------------------------------------------------

8192  8192       10.0.12.1       Up        S_AUTO_PEER        -                 

--------------------------------------------------------------------------------

     Total UP/DOWN Session Number : 1/0

测试BFD效果,先在R4上启用长ping然后在R1接口上shutdown:

[R4]ping -c 100 10.0.1.1

[R1]interface GigabitEthernet 0/0/1

[R1-GigabitEthernet0/0/1]shutdown

在R4上观察ping的结果:

[R4]ping -c 100 10.0.1.1

  PING 10.0.1.1: 56  data bytes, press CTRL_C to break

    Reply from 10.0.1.1: bytes=56 Sequence=1 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=2 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=3 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=4 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=5 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=6 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=7 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=8 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=9 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=10 ttl=254 time=1 ms

    Request time out

    Request time out

    Reply from 10.0.1.1: bytes=56 Sequence=13 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=14 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=15 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=16 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=17 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=18 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=19 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=20 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=21 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=22 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=23 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=24 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=25 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=26 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=27 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=28 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=29 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=30 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=31 ttl=254 time=1 ms

    Reply from 10.0.1.1: bytes=56 Sequence=32 ttl=254 time=1 ms

  --- 10.0.1.1 ping statistics ---

    32 packet(s) transmitted

    30 packet(s) received

    6.25% packet loss

    round-trip min/avg/max = 1/1/1 ms

查看此时的VRRP状态:

[R2]display vrrp

  GigabitEthernet0/0/0 | Virtual Router 45

    State : Backup

    Virtual IP : 192.168.45.1

    Master IP : 192.168.45.3

    PriorityRun : 90

    PriorityConfig : 150

    MasterPriority : 100

    Preempt : YES   Delay Time : 0 s

    TimerRun : 1 s

    TimerConfig : 1 s

    Auth type : NONE

    Virtual MAC : 0000-5e00-012d

    Check TTL : YES

    Config type : normal-vrrp

    Backup-forward : disabled

    Track BFD : 1  Priority reduced : 60

    BFD-session state : DOWN

    Create time : 2016-09-25 15:18:54

    Last change time : 2016-09-25 15:27:26

BFD联动VRRP检测非直连上行链路成功,在R5上的结论与R4相同,检查略。

配置文件参考

<R1>display current-configuration

[V200R007C00SPC600]

#

 sysname R1

#

bfd

#

interface GigabitEthernet0/0/1

 ip address 10.0.12.1 255.255.255.0

 ospf cost 90                             

#

interface GigabitEthernet0/0/2

 ip address 10.0.13.1 255.255.255.0

 ospf cost 100

#

interface LoopBack0

 ip address 10.0.1.1 255.255.255.0

#

bfd 1 bind peer-ip 192.168.45.2 source-ip 10.0.12.1 auto

 commit

#

ospf 1

 area 0.0.0.0

  network 10.0.1.0 0.0.0.255

  network 10.0.12.0 0.0.0.255             

  network 10.0.13.0 0.0.0.255

#

return

<R2>display current-configuration 

[V200R007C00SPC600]

#

 sysname R2

#

bfd

#

interface GigabitEthernet0/0/0

 ip address 192.168.45.2 255.255.255.0

 vrrp vrid 45 virtual-ip 192.168.45.1

 vrrp vrid 45 priority 150                

 vrrp vrid 45 track bfd-session session-name 1 reduced 60

#

interface GigabitEthernet0/0/1

 ip address 10.0.12.2 255.255.255.0

 ospf cost 90

#

interface LoopBack0

 ip address 10.0.2.2 255.255.255.0

#

bfd 1 bind peer-ip 10.0.12.1 source-ip 192.168.45.2 auto

 commit

#

ospf 1                                    

 silent-interface GigabitEthernet0/0/0

 area 0.0.0.0

  network 10.0.2.0 0.0.0.255

  network 10.0.12.0 0.0.0.255

  network 192.168.45.0 0.0.0.255

#

return

<R3>display current-configuration 

[V200R007C00SPC600]

#

 sysname R3

#

interface GigabitEthernet0/0/0

 ip address 192.168.45.3 255.255.255.0

 vrrp vrid 45 virtual-ip 192.168.45.1

#                                         

interface GigabitEthernet0/0/2

 ip address 10.0.13.2 255.255.255.0

 ospf cost 100

#

interface LoopBack0

 ip address 10.0.3.3 255.255.255.0

#

ospf 1

 silent-interface GigabitEthernet0/0/0

 area 0.0.0.0

  network 10.0.3.0 0.0.0.255

  network 10.0.13.0 0.0.0.255

  network 192.168.45.0 0.0.0.255

#

return

<R4>display current-configuration 

[V200R007C00SPC600]

#

 sysname R4

#

interface GigabitEthernet0/0/0

 ip address 192.168.45.4 255.255.255.0

#

ip route-static 0.0.0.0 0.0.0.0 192.168.45.1

#

return

<R5>display current-configuration 

[V200R007C00SPC600]

#

 sysname R5

#

interface GigabitEthernet0/0/0

 ip address 192.168.45.5 255.255.255.0

#

ip route-static 0.0.0.0 0.0.0.0 192.168.45.1

#

return

<SW1>display current-configuration

!Software Version V200R008C00SPC500

#

sysname SW1

#

vlan batch 12

#

interface GigabitEthernet0/0/1

 port link-type access                    

 port default vlan 12

#

interface GigabitEthernet0/0/2

 port link-type access

 port default vlan 12

#

return

<SW2>display current-configuration

!Software Version V200R008C00SPC500

#

sysname SW2

#

vlan batch 13

#

interface GigabitEthernet0/0/1

 port link-type access

 port default vlan 13                                     

#

interface GigabitEthernet0/0/3

 port link-type access

 port default vlan 13

#

return

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转载自blog.csdn.net/weixin_57099902/article/details/131808729