Parameter
is/hostbuffer_timeout_invalid_entry
Short text
Set NI host name buffer timeout for invalid entries (internal DNS cache).
Parameter Description
A function of the SAP Network Interface (NI) is the host name buffer, which acts as a cache for the mapping between host names and IP addresses.
This includes forward lookups (host name to IP) and reverse lookups (IP to host name). Both valid entries, that is, previously successful queries to the operating system, and invalid entries, if queried again, are answered from this buffer.
You can use the parameter is/hostbuffer_timeout_invalid_entry to define the period of time (in seconds) after which invalid entries (negative cache) are deleted from the cache.
The value 0 deactivates the negative cache.
Application Area
General System
Parameter Unit
Seconds
Default Value
600
Who is permitted to make changes?
Customer
Operating System Restrictions
None
Database System Restrictions
None
Are other parameters affected or dependent?
is/hostbuffer_timeout_valid_entry
Values allowed
0 – 86400
