This sets the maximum number of connection attempts for a
	host that only has one address (for multiple-address hosts,
	each address is tried once).

	The default value is one attempt, the (not recommended)
	maximum is 255 tries.  A warning message will be generated
	if it is set to a value greater than ten.

	Note: This is in addition to the request re-forwarding which
	takes place if Squid fails to get a satisfying response.