SIP Domain Resolver (domainResolver)

SIP Domain Resolver (domainResolver)

Configuration for the SIP domain resolver

Name Type Default Description

addTtl boolean false Add an IBMTTL parameter to the SIP URI.

dnsAllowedFailures int 5 The number of allowed DNS lookup failures for the DNS failover mechanism.

dnsAutoResolve boolean false Resolve domain names automatically.

dnsEdns

N
Y

Y Define the transport protocol for DNS lookup to resolve RFC 3263 SIP URIs. If set to Y, UDP is used. If set to N, TCP is used.

dnsRequestCacheTimeoutMin A period of time with minute precision 10m The minimum time in minutes after which cached DNS queries time out. Specify a positive integer followed by a unit of time, which can be hours (h) or minutes (m). For example, specify 30 minutes as 30m. We can include multiple values in a single entry. For example, 1h30m is equivalent to 90 minutes.

dnsServers string
This is specified as a child element rather than as an XML attribute (maximum occurrences 2). Allows a SIP URI to be resolved through DNS into the IP address, port, and transport protocol. The value is a String containing exactly one or two address and port tuples, where two tuples are separated by a space.

dnsSingleQueryTimeoutSec A period of time with second precision 5s The number of seconds after which a single query times out for the DNS failover mechanism. Specify a positive integer followed by a unit of time, which can be hours (h), minutes (m), or seconds (s). For example, specify 30 seconds as 30s. We can include multiple values in a single entry. For example, 1m30s is equivalent to 90 seconds.

dnsUdpPayloadSize short
Min: 512
Max: 32767 1280 The UDP payload size in bytes for the DNS resolver service.

dnsWindowSizeInterval int 10 The resolver service window size interval for the DNS failover mechanism.

dnsWindowSizeMin int 600 The minimum window size for the DNS failover mechanism.

Name	Type	Default	Description
addTtl	boolean	false	Add an IBMTTL parameter to the SIP URI.
dnsAllowedFailures	int	5	The number of allowed DNS lookup failures for the DNS failover mechanism.
dnsAutoResolve	boolean	false	Resolve domain names automatically.
dnsEdns	N Y	Y	Define the transport protocol for DNS lookup to resolve RFC 3263 SIP URIs. If set to Y, UDP is used. If set to N, TCP is used.
dnsRequestCacheTimeoutMin	A period of time with minute precision	10m	The minimum time in minutes after which cached DNS queries time out. Specify a positive integer followed by a unit of time, which can be hours (h) or minutes (m). For example, specify 30 minutes as 30m. We can include multiple values in a single entry. For example, 1h30m is equivalent to 90 minutes.
dnsServers	string This is specified as a child element rather than as an XML attribute (maximum occurrences 2).		Allows a SIP URI to be resolved through DNS into the IP address, port, and transport protocol. The value is a String containing exactly one or two address and port tuples, where two tuples are separated by a space.
dnsSingleQueryTimeoutSec	A period of time with second precision	5s	The number of seconds after which a single query times out for the DNS failover mechanism. Specify a positive integer followed by a unit of time, which can be hours (h), minutes (m), or seconds (s). For example, specify 30 seconds as 30s. We can include multiple values in a single entry. For example, 1m30s is equivalent to 90 seconds.
dnsUdpPayloadSize	short Min: 512 Max: 32767	1280	The UDP payload size in bytes for the DNS resolver service.
dnsWindowSizeInterval	int	10	The resolver service window size interval for the DNS failover mechanism.
dnsWindowSizeMin	int	600	The minimum window size for the DNS failover mechanism.