152 lines
4.9 KiB
Markdown
152 lines
4.9 KiB
Markdown
# BFD和静态路由
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### 一、配IP
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- **AR1**
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```
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[AR1]int g0/0/2
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[AR1-GigabitEthernet0/0/2]ip add 192.168.1.254 24
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[AR1-GigabitEthernet0/0/2]int g0/0/0
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[AR1-GigabitEthernet0/0/0]ip add 192.168.12.1 24
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[AR1-GigabitEthernet0/0/0]int g0/0/1
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[AR1-GigabitEthernet0/0/1]ip add 192.168.13.1 24
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[AR1-GigabitEthernet0/0/1]quit
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[AR1]ip route-static 192.168.2.0 24 192.168.12.2
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[AR1]ip route-static 192.168.2.0 24 192.168.13.2 preference 100
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```
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- **AR2**
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```
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[AR2]int g0/0/0
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[AR2-GigabitEthernet0/0/0]ip add 192.168.12.2 24
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[AR2-GigabitEthernet0/0/0]int g0/0/1
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[AR2-GigabitEthernet0/0/1]ip add 192.168.24.2 24
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[AR2-GigabitEthernet0/0/1]quit
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[AR2]ip route-static 192.168.1.0 24 192.168.12.1
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[AR2]ip route-static 192.168.2.0 24 192.168.24.4
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```
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- **AR3**
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```
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[AR3]int g0/0/0
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[AR3-GigabitEthernet0/0/0]ip add 192.168.13.3 24
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[AR3-GigabitEthernet0/0/0]int g0/0/1
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[AR3-GigabitEthernet0/0/1]ip add 192.168.34.3 24
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[AR3-GigabitEthernet0/0/1]quit
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[AR3]ip route-static 192.168.1.0 24 192.168.13.1
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[AR3]ip route-static 192.168.2.0 24 192.168.34.4
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```
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- **AR4**
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```
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[AR4]int g0/0/0
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[AR4-GigabitEthernet0/0/0]ip add 192.168.24.4 24
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[AR4-GigabitEthernet0/0/0]int g0/0/1
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[AR4-GigabitEthernet0/0/1]ip add 192.168.34.4 24
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[AR4-GigabitEthernet0/0/1]int g0/0/2
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[AR4-GigabitEthernet0/0/2]ip add 192.168.2.254 24
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[AR4-GigabitEthernet0/0/2]quit
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[AR4]ip route-static 192.168.1.0 24 192.168.24.2
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[AR4]ip route-static 192.168.1.0 24 192.168.34.3 preference 100
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```
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### 二、BFD
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- **AR1**
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```
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[AR1]ip route-static 192.168.24.0 24 192.168.12.2
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[AR1]ip route-static 192.168.34.0 24 192.168.13.3
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[AR1]bfd
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[AR1-bfd]quit
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[AR1]bfd ntd2407 bind peer-ip 192.168.24.4
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[AR1-bfd-session-ntd2407]discriminator local 1
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[AR1-bfd-session-ntd2407]discriminator remote 4
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[AR1-bfd-session-ntd2407]min-tx-interval 10
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[AR1-bfd-session-ntd2407]min-rx-interval 10
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[AR1-bfd-session-ntd2407]commit
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[AR1-bfd-session-ntd2407]quit
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[AR1]ip route-static 192.168.2.0 24 192.168.12.2 track bfd ntd2407
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```
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- *注解：*
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1. `[AR1]bfd`：进入BFD配置模式
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2. `[AR1-bfd]quit`：退出BFD配置模式
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3. `[AR1]bfd ntd2407 bind peer-ip 192.168.24.4`：创建一个名为`ntd2407`的BFD会话，并将其绑定到对端IP地址`192.168.24.4`
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4. `[AR1-bfd-session-ntd2407]discriminator local 1`：为本地设备设置BFD会话的鉴别器值为`1`
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5. `[AR1-bfd-session-ntd2407]discriminator remote 4`：设置对端设备BFD会话的鉴别器值为`4`
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6. `[AR1-bfd-session-ntd2407]min-tx-interval 10`：设置BFD会话的最小发送间隔为`10`毫秒
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7. `[AR1-bfd-session-ntd2407]min-rx-interval 10`：设置BFD会话的最小接收间隔为`10`毫秒
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8. `[AR1-bfd-session-ntd2407]commit`：提交BFD会话的配置，使其生效
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9. `ip route-static 192.168.2.0 24 192.168.12.2 track bfd ntd2407`：BFD与静态路由联动
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- **AR4**
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```
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[AR4]ip route-static 192.168.12.0 24 192.168.24.2
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[AR4]ip route-static 192.168.13.0 24 192.168.34.3
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[AR4]bfd
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[AR4-bfd]quit
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[AR4]bfd ntd2407 bind peer-ip 192.168.12.1
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[AR4-bfd-session-ntd2407]discriminator local 4
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[AR4-bfd-session-ntd2407]discriminator remote 1
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[AR4-bfd-session-ntd2407]min-tx-interval 10
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[AR4-bfd-session-ntd2407]min-rx-interval 10
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[AR4-bfd-session-ntd2407]commit
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```
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- *注解：*
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1. `[AR1]bfd`：进入BFD配置模式
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2. `[AR1-bfd]quit`：退出BFD配置模式
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3. `[AR1]bfd ntd2407 bind peer-ip 192.168.12.1`：创建一个名为`ntd2407`的BFD会话，并将其绑定到对端IP地址`192.168.12.1`
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4. `[AR1-bfd-session-ntd2407]discriminator local 4`：为本地设备设置BFD会话的鉴别器值为`4`
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5. `[AR1-bfd-session-ntd2407]discriminator remote 1`：设置对端设备BFD会话的鉴别器值为`1`
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6. `[AR1-bfd-session-ntd2407]min-tx-interval 10`：设置BFD会话的最小发送间隔为`10`毫秒
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7. `[AR1-bfd-session-ntd2407]min-rx-interval 10`：设置BFD会话的最小接收间隔为`10`毫秒
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8. `[AR1-bfd-session-ntd2407]commit`：提交BFD会话的配置，使其生效
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### 三、功能性测试
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- **断连测试**
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- 查看BFD信息
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```
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[AR1]dis bfd session all
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--------------------------------------------------------------------------------
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Local Remote PeerIpAddr State Type InterfaceName
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--------------------------------------------------------------------------------
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1 4 192.168.24.4 Down S_IP_PEER -
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--------------------------------------------------------------------------------
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Total UP/DOWN Session Number : 0/1
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```
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- PING
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```
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```
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- Tracert
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```
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```
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