Nortel Networks 4050 Retransmit interval, Count count, Ttl ttl, Health interval, Hdown count

478 Chapter 10 Configuring system settings

/cfg/sys/dns followed by:

retransmit <interval>	Sets the interval for retransmitting a DNS query.
	• interval is a positive integer that indicates the
	time interval in seconds (s), minutes (m), or hours
	(h). If you do not specify a measurement unit,
	seconds is assumed. The default is 2 (2 seconds).
count <count>	Specifies the number of retries.
	• count is a non-negative integer that indicates the
	maximum number of times a DNS query is
	retransmitted. The default is 3.
ttl <ttl>	Specifies the maximum time to live (TTL) value for
	entries in the DNS cache. After the TTL has expired,
	the entries are discarded.
	• ttl is a non-negative integer that indicates the
	TTL value in seconds (s), minutes (m), hours (h), or
	days (d). You can enter compound values (for
	example, 2h30m). If you do not specify a
	measurement unit, seconds is assumed. The
	default is 3h (3 hours).
health <interval>	Sets the interval for the Nortel SNAS 4050 to check the
	health of the DNS servers. At the specified interval, the
	Nortel SNAS 4050 performs a DNS query to each DNS
	server in the system configuration to determine its
	health status.
	• interval is an integer that indicates the time
	interval in seconds (s), minutes (m), or hours (h). If
	you do not specify a measurement unit, seconds is
	assumed. The default is 10 (10 seconds).
hdown <count>	Sets the health check down counter.
	• count is a positive integer that indicates the
	number of times a DNS server health check can
	time out before the Nortel SNAS 4050 determines
	the DNS server is down. The default is 2.
hup <count>	Sets the health check up counter.
	• count is a positive integer that indicates the
	number of times a DNS server health check returns
	a positive response before the Nortel SNAS 4050
	determines the DNS server is up. The default is 2.

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