Chapter 23

Chapter 23

23.1	List some advantages of the keepalive feature.
A:	It is usually simpler to invoke the keepalive option than explicitly coding application probes; the keepalive probes take less network bandwidth than application probes (since keepalive probes and answers contain no data); no probes are sent unless the connection is idle.
23.2	List some disadvantages of the keepalive feature.
A:	The keepalive option can cause a perfectly good connection to be dropped because of a temporary network outage ; the probe interval (2 hours) is normally not configurable on an application basis;