Rocky Linux：尝试更改网络接口属性时出现错误“未知属性”

当管理员尝试使用以下命令编辑网络接口属性时： nmtui，则显示以下错误：

"Unable to save connection: connection.autoconnect-ports: unknown property"

下面是尝试使用以下命令配置接口时观察到的错误示例： nmcli：

[root@localhost pcap]# nmcli connection modify BCM57414-IntNIC1-P1-25Gb 802-3-ethernet.mtu 1500
Warning: nmcli (1.46.0) and NetworkManager (1.44.0) versions don't match. Restarting NetworkManager is advised.
Error: Failed to modify connection 'BCM57414-IntNIC1-P1-25Gb': connection.autoconnect-ports: unknown property

[root@localhost pcap]# nmcli connection modify BCM57414-IntNIC1-P1-25Gb 802-3-ethernet.mtu 9000
Warning: nmcli (1.46.0) and NetworkManager (1.44.0) versions don't match. Restarting NetworkManager is advised.
Error: Failed to modify connection 'BCM57414-IntNIC1-P1-25Gb': connection.autoconnect-ports: unknown property

在此示例中，管理员尝试更改接口的 MTU，但在尝试更改其他属性时发生相同的错误。

原因尚不清楚。出于某种原因，Network Manager 指示版本不匹配。

1. 检查 NetworkManager 和 nmcli 版本：验证 NetworkManager 和 nmcli 版本匹配。在下面的示例中，版本是匹配的：

   [root@localhost pcap]# rpm -qa | grep NetworkManager
   NetworkManager-libnm-1.46.0-4.el9_4.x86_64
   NetworkManager-1.46.0-4.el9_4.x86_64
   NetworkManager-wwan-1.46.0-4.el9_4.x86_64
   NetworkManager-team-1.46.0-4.el9_4.x86_64
   NetworkManager-wifi-1.46.0-4.el9_4.x86_64
   NetworkManager-bluetooth-1.46.0-4.el9_4.x86_64
   NetworkManager-adsl-1.46.0-4.el9_4.x86_64
   NetworkManager-tui-1.46.0-4.el9_4.x86_64
   NetworkManager-config-server-1.46.0-4.el9_4.noarch

2. 重新启动 NetworkManager：重新启动 NetworkManager 服务可能会解决此问题：

   [root@localhost pcap]# systemctl restart NetworkManager

3. 验证设置：重新启动后，检查更改的设置是否已正确应用：

   [root@localhost pcap]# nmcli connection show BCM57414-IntNIC1-P1-25Gb | grep 802-3-ethernet.mtu
   802-3-ethernet.mtu:                     9000
   [root@localhost pcap]# nmcli connection show BCM57414-IntNIC1-P2-25Gb | grep 802-3-ethernet.mtu
   802-3-ethernet.mtu:                     9000

4. 关闭和打开端口以应用新配置：

   [root@localhost pcap]# nmcli con down BCM57414-IntNIC1-P1-25Gb && nmcli con up BCM57414-IntNIC1-P1-25Gb
   Connection 'BCM57414-IntNIC1-P1-25Gb' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/2)
   Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/17)
   
   [root@localhost pcap]# nmcli con down BCM57414-IntNIC1-P2-25Gb && nmcli con up BCM57414-IntNIC1-P2-25Gb
   Connection 'BCM57414-IntNIC1-P2-25Gb' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/3)
   Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/18)

5. 测试连接：在此示例中，管理员更改了 MTU 设置，并运行 ping 测试以验证 MTU 的连接性和正确应用：

   [root@localhost pcap]# ping 192.168.15.10 -s8972 -c4
   PING 192.168.15.10 (192.168.15.10) 8972(9000) bytes of data.
   8980 bytes from 192.168.15.10: icmp_seq=1 ttl=64 time=0.287 ms
   8980 bytes from 192.168.15.10: icmp_seq=2 ttl=64 time=0.136 ms
   8980 bytes from 192.168.15.10: icmp_seq=3 ttl=64 time=0.125 ms
   8980 bytes from 192.168.15.10: icmp_seq=4 ttl=64 time=0.135 ms

有关网络配置的更多详细信息，请参阅官方 Rocky Linux 文档：网络配置 - 文档