Macros: User-defined variables that can hold IP addresses, interface names, etc.
Macros: User-defined variables that can hold IP addresses, interface names, etc.
宏：用户定义的变量，它可以包含IP地址，接口名称等等。
Macros: User-defined variables that can hold IP addresses, interface names, etc.
宏：用户定义的变量，它可以包含IP地址，接口名称等等。