When Binary Data is selected as the health check method, some other fields are available, as described below.

Data to Send

Specify a hexadecimal string to send to the Real Server.

Note: This hexadecimal string must contain an even number of characters.

Reply Pattern

Specify the hexadecimal string which is searched for in the response sent back from the Real Server. If the LoadMaster finds this pattern in the response, the Real Server is considered up. If the string is not found, the Real Server is marked as down.

Note: This hexadecimal string must contain an even number of characters.

Find Match Within

When a response is returned, the LoadMaster will search for the Reply Pattern in the response. The LoadMaster will search up to the number of bytes specified in this field for a match.

Setting this to 0 means that the search is not limited. Data is read from the Real Server until a match is found. A maximum of 8 KB is read from the Real Server.

Setting the value to less than the length of the reply string means that the check will act as if the value has been set to 0, that is, all packets (up to 8 KB) are searched.