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public interface SLPConfigProperties
System.setProperty(name, value)
. Note that these properties
have global VM scope.
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public static final String NET_SLP_CONFIG_URL
A URL string giving the location of the SLP config file.
By default the SLP client looks forThe first file found will be used. The default search list is not applied if this property is set, even if the given URL does not exist.
- file:slp.conf
- file:%USER_HOME%/slp.conf
- file:/etc/java/slp.conf
- file:/etc/slp.conf
SBLIM specific extension to RFC 2614
public static final String NET_SLP_DATAGRAM_TIMEOUTS
A value-list of 32 bit integers used as timeouts, in milliseconds, to implement unicast datagram transmission to DAs. The nth value gives the time to block waiting for a reply on the nth try to contact the DA.
Default is:1000,2000,3000
public static final String NET_SLP_DA_ACTIVE_DISCOVERY_GRANULARITY
A 16 bit positive integer giving the number of seconds the DA url lifetime should exceed the discovery interval.
Default is 900 seconds (15 minutes).
SBLIM specific extension to RFC 2614
public static final String NET_SLP_DA_ACTIVE_DISCOVERY_INTERVAL
A 16 bit positive integer giving the number of seconds between DA active discovery queries.
Default is 900 seconds (15 minutes).
If the property is set to zero, active discovery is turned off. This is useful when the DAs available are explicitly restricted to those obtained from DHCP or the net.slp.DAAddresses property.
public static final String NET_SLP_DA_ADDRESSES
A value-list of IP addresses or DNS resolvable host names giving the SLPv2 DAs to use for statically configured UAs and SAs. Ignored by DAs (unless the DA is also an SA server).
Default is none.
The following grammar describes the property:addr-list = addr / addr "," addr-list
An example is:
addr = fqdn / hostnumber
fqdn = ALPHA / ALPHA *[ anum / "-" ] anum
anum = ALPHA / DIGIT
hostnumber = 1*3DIGIT 3("." 1*3DIGIT)
sawah,mandi,sambal
IP addresses can be used instead of host names in networks where DNS is not deployed, but network administrators are reminded that using IP addresses will complicate machine renumbering, since the SLP configuration property files in statically configured networks will have to be changed. Similarly, if host names are used, implementors must be careful that a name service is available before SLP starts, in other words, SLP cannot be used to find the name service.
public static final String NET_SLP_DA_ATTRIBUTES
A comma-separated list of parenthesized attribute/value list pairs that the DA must advertise in DAAdverts. The property must be in the SLP attribute list wire format, including escapes for reserved characters.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_DA_DISCOVERY_TIMEOUTS
A value-list of 32 bit integers used as timeouts, in milliseconds, to implement the multicast convergence algorithm during active DA discovery. Each value specifies the time to wait before sending the next request, or until nothing new has been learned from two successive requests.
Default is:2000,2000,2000,2000,3000,4000
.
public static final String NET_SLP_DA_HEARTBEAT
A 32 bit integer giving the number of seconds for the DA heartbeat. Ignored if isDA is false.
Default is 10800 seconds (3 hours).
Not evaluated by SBLIM SLP client
public static final String NET_SLP_INTERFACES
Value-list of strings giving the IP addresses of network interfaces on which the DA or SA should listen on port 427 for multicast, unicast UDP, and TCP messages.
Default is empty, i.e. use the default network interface.
The grammar for this property is:addr-list = hostnumber / hostnumber "," addr-list
An example is:
hostnumber = 1*3DIGIT 3("." 1*3DIGIT)195.42.42.42,195.42.142.1,195.42.120.1
The example machine has three interfaces on which the DA should listen. Note that since this property only takes IP addresses, it will need to be changed if the network is renumbered.
public static final String NET_SLP_IS_BROADCAST_ONLY
A boolean indicating if broadcast should be used instead of multicast.
Default isfalse
.
public static final String NET_SLP_IS_DA
A boolean indicating if the SLP server is to act as a DA. Iffalse
, run as a SA.
Default isfalse
.
public static final String NET_SLP_LOCALE
A RFC 1766 Language Tag for the language locale. Setting this property causes the property value to become the default locale for SLP messages. This property is also used for SA and DA configuration.
Default isen
.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_MAX_RESULTS
A 32 bit integer giving the maximum number of results to accumulate and return for a synchronous request before the timeout, or the maximum number of results to return through a callback if the request results are reported asynchronously.
Positive integers and -1 are legal values. If -1, indicates that all results should be returned.
Default value is 2147483647 (2^31 - 1)
SBLIM specific: RFC 2614 recommendation is -1.
DAs and SAs always return all results that match the request. This configuration value applies only to UAs, that filter incoming results and only return as many values as net.slp.maxResults indicates.
public static final String NET_SLP_MTU
A 16 bit integer giving the network packet MTU, in bytes. This is the maximum size of any datagram to send, but the implementation might receive a larger datagram. The maximum size includes IP, and UDP or TCP headers.
Default is 1400.
public static final String NET_SLP_MULTICAST_MAXIMUM_WAIT
A 32 bit integer giving the maximum amount of time to perform multicast, in milliseconds.
Default is 15000 ms.
public static final String NET_SLP_MULTICAST_TIMEOUTS
A value-list of 32 bit integers used as timeouts, in milliseconds, to implement the multicast convergence algorithm. Each value specifies the time to wait before sending the next request, or until nothing new has been learned from two successive requests.
Default is: 2000, 2000, 2000, 2000, 3000, 4000
SBLIM specific: RFC 2614 recommendation is 3000,3000,3000,3000,3000.
In a fast network the aggressive values of 1000,1250,1500,2000,4000 allow better performance.
Note that the net.slp.DADiscoveryTimeouts property must be used for active DA discovery.
public static final String NET_SLP_MULTICAST_TTL
A positive integer less than or equal to 255, giving the multicast TTL.
Default is 255.
public static final String NET_SLP_PASSIVE_DA_DETECTION
A boolean indicating whether passive DA detection should be used.
Default is true.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_PORT
Default is 427.
public static final String NET_SLP_RANDOM_WAIT_BOUND
A 32 bit integer giving the maximum value for all random wait parameters, in milliseconds.
Default is 1000 ms.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_SAONLY_SCOPES
A value-list of strings indicating the scopes that are only applied to SAs. In contradication the "net.slp.useScopes" specifies the scope for UAs and SAs.
SBLIM specific extension to RFC 2614
public static final String NET_SLP_SA_ATTRIBUTES
A comma-separated list of parenthesized attribute/value list pairs that the SA must advertise in SAAdverts. The property must be in the SLP attribute list wire format, including escapes for reserved characters.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_SECURITY_ENABLED
A comma-separated list of parenthesized attribute/value list pairs that the SA must advertise in SAAdverts. The property must be in the SLP attribute list wire format, including escapes for reserved characters.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_SERIALIZED_REG_URL
A string containing a URL pointing to a document containing serialized registrations that should be processed when the DA or SA server starts up.
Default is none.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_SERVER_SOCKET_QUEUE_LENGTH
A 32 bit integer giving the server socket queue length for SAs/DAs.
Default is 10.
SBLIM specific extension to RFC 2614
public static final String NET_SLP_TCPTIMEOUT
A 32 bit integer giving the TCP timeout in milliseconds.
The default is 20000 ms.
SBLIM specific extension to RFC 2614
public static final String NET_SLP_TRACE_DA_TRAFFIC
A boolean controlling printing of messages about traffic with DAs.
Default isfalse
.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_TRACE_DROP
A boolean controlling printing details when a SLP message is dropped for any reason.
Default isfalse
.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_TRACE_MSG
A boolean controlling printing of details on SLP messages. The fields in all incoming messages and outgoing replies are printed.
Default isfalse
.
public static final String NET_SLP_TRACE_REG
A boolean controlling dumps of all registered services upon registration and deregistration. If true, the contents of the DA or SA server are dumped after a registration or deregistration occurs.
Default is false.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_TRC_LEVEL
Trace level. Can be ALL, INFO, WARNING, ERROR, OFF
public static final String NET_SLP_TYPE_HINT
A value-list of service type names. In the absence of any DAs, UAs perform SA discovery for finding scopes. These SA discovery requests may contain a request for service types as an attribute.
The API implementation will use the service type names supplied by this property to discover only those SAs (and their scopes) which support the desired service type or types. For example, if net.slp.typeHint is set to "service:imap,service:pop3" then SA discovery requests will include the search filter:
(|(service-type=service:imap)(service-type=service:pop3))
The API library can also use unicast to contact the discovered SAs for subsequent requests for these service types, to optimize network access.
Not evaluated by SBLIM SLP client
public static final String NET_SLP_USEIPV4
Default is true.
public static final String NET_SLP_USEIPV6
Default is true.
public static final String NET_SLP_USE_SCOPES
A value-list of strings indicating the only scopes a UA or SA is allowed to use when making requests or registering, or the scopes a DA must support.
If not present for the DA and SA, then in the absence of scope information from DHCP, the default scope "DEFAULT" is used. If not present for the UA, and there is no scope information available from DHCP, then the user scoping model is in force.
Active and passive DA discovery or SA discovery are used for scope discovery, and the scope "DEFAULT" is used if no other information is available.
If a DA or SA gets another scope in a request, a SCOPE_NOT_SUPPORTED error should be returned, unless the request was multicast, in which case it should be dropped. If a DA gets another scope in a registration, a SCOPE_NOT_SUPPORTED error must be returned.