2024年8月28日 15:26:47

B. 第二阶段/拓扑练习/0828_BFD和静态路由.md

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+# BFD和静态路由
+
+![image-20240828140643096](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240828140643096.png)
+
+### 一、配IP
+
+- **AR1**
+
+  ```
+  [AR1]int g0/0/2
+  [AR1-GigabitEthernet0/0/2]ip add 192.168.1.254 24
+  [AR1-GigabitEthernet0/0/2]int g0/0/0
+  [AR1-GigabitEthernet0/0/0]ip add 192.168.12.1 24
+  [AR1-GigabitEthernet0/0/0]int g0/0/1
+  [AR1-GigabitEthernet0/0/1]ip add 192.168.13.1 24
+  [AR1-GigabitEthernet0/0/1]quit
+  [AR1]ip route-static 192.168.2.0 24 192.168.12.2
+  [AR1]ip route-static 192.168.2.0 24 192.168.13.2 preference 100
+  ```
+
+- **AR2**
+
+  ```
+  [AR2]int g0/0/0
+  [AR2-GigabitEthernet0/0/0]ip add 192.168.12.2 24
+  [AR2-GigabitEthernet0/0/0]int g0/0/1
+  [AR2-GigabitEthernet0/0/1]ip add 192.168.24.2 24
+  [AR2-GigabitEthernet0/0/1]quit
+  [AR2]ip route-static 192.168.1.0 24 192.168.12.1
+  [AR2]ip route-static 192.168.2.0 24 192.168.24.4
+  ```
+
+- **AR3**
+
+  ```
+  [AR3]int g0/0/0
+  [AR3-GigabitEthernet0/0/0]ip add 192.168.13.3 24
+  [AR3-GigabitEthernet0/0/0]int g0/0/1
+  [AR3-GigabitEthernet0/0/1]ip add 192.168.34.3 24
+  [AR3-GigabitEthernet0/0/1]quit
+  [AR3]ip route-static 192.168.1.0 24 192.168.13.1
+  [AR3]ip route-static 192.168.2.0 24 192.168.34.4
+  ```
+
+- **AR4**
+
+  ```
+  [AR4]int g0/0/0
+  [AR4-GigabitEthernet0/0/0]ip add 192.168.24.4 24
+  [AR4-GigabitEthernet0/0/0]int g0/0/1
+  [AR4-GigabitEthernet0/0/1]ip add 192.168.34.4 24
+  [AR4-GigabitEthernet0/0/1]int g0/0/2
+  [AR4-GigabitEthernet0/0/2]ip add 192.168.2.254 24
+  [AR4-GigabitEthernet0/0/2]quit
+  [AR4]ip route-static 192.168.1.0 24 192.168.24.2
+  [AR4]ip route-static 192.168.1.0 24 192.168.34.3 preference 100
+  ```
+
+### 二、BFD
+
+- **AR1**
+
+  ```
+  [AR1]ip route-static 192.168.24.0 24 192.168.12.2
+  [AR1]ip route-static 192.168.34.0 24 192.168.13.3
+  [AR1]bfd
+  [AR1-bfd]quit
+  [AR1]bfd ntd2407 bind peer-ip 192.168.24.4
+  [AR1-bfd-session-ntd2407]discriminator local 1
+  [AR1-bfd-session-ntd2407]discriminator remote 4
+  [AR1-bfd-session-ntd2407]min-tx-interval 10
+  [AR1-bfd-session-ntd2407]min-rx-interval 10
+  [AR1-bfd-session-ntd2407]commit
+  ```
+
+  - *注解：*
+    1. `[AR1]bfd`：进入BFD配置模式
+    2. `[AR1-bfd]quit`：退出BFD配置模式
+    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`
+    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`
+    5. `[AR1-bfd-session-ntd2407]discriminator remote 4`：设置对端设备BFD会话的鉴别器值为`4`
+    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
+    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
+    8. `[AR1-bfd-session-ntd2407]commit`：提交BFD会话的配置，使其生效
+
+- **AR4**
+
+  ```
+  [AR4]ip route-static 192.168.12.0 24 192.168.24.2
+  [AR4]ip route-static 192.168.13.0 24 192.168.34.3
+  [AR4]bfd
+  [AR4-bfd]quit
+  [AR4]bfd ntd2407 bind peer-ip 192.168.12.1
+  [AR4-bfd-session-ntd2407]discriminator local 4
+  [AR4-bfd-session-ntd2407]discriminator remote 1
+  [AR4-bfd-session-ntd2407]min-tx-interval 10
+  [AR4-bfd-session-ntd2407]min-rx-interval 10
+  [AR4-bfd-session-ntd2407]commit
+  ```
+
+  - *注解：*
+    1. `[AR1]bfd`：进入BFD配置模式
+    2. `[AR1-bfd]quit`：退出BFD配置模式
+    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`
+    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`
+    5. `[AR1-bfd-session-ntd2407]discriminator remote 1`：设置对端设备BFD会话的鉴别器值为`1`
+    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
+    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
+    8. `[AR1-bfd-session-ntd2407]commit`：提交BFD会话的配置，使其生效