This is typically the last byte of the command, used for vendor-specific information and other USES.
这个字节通常是该命令的最后一个字节，用于表示与供应商相关的信息等等。
2
You don't really need a command module for this, but the memory is very limited. There is a small 100-byte buffer that holds the bytecode instruction stream.
在这种情况下，您并不需要一个命令模块，但是内存容量十分有限，其大小只有100个字节。
3
If so, the racluster command described above is run, and the IP address and associated byte count for all connections to that address is recorded in the % hosts hash.