| | | |
|---|
Service Request
| SrvRqst
| 1
| Issued by a UA to find services or by a UA or SA server during
active DA discovery.
|
Service Reply
| SrvRply
| 2
| The DA or SA response to a service request.
|
Service Registration
| SrvReg
| 3
| Enables SAs to register new advertisements, to update existing
advertisements with new and changed attributes, and to refresh URL
lifetimes.
|
Service Deregistration
| SrvDereg
| 4
| Used by the SA to deregister its advertisements when the service
they represent is no longer available.
|
Acknowledgment
| SrvAck
| 5
| The DA response to an SA's service request or service deregistration
message.
|
Attribute Request
| AttrRqst
| 6
| Made either by URL or by service type to request a list of attributes.
|
Attribute Reply
| AttrRply
| 7
| Used to return the list of attributes.
|
DA Advertisement
| DAAdvert
| 8
| The DA response to multicast service requests.
|
Service Type Request
| SrvTypeRqst
| 9
| Used to inquire about registered service types that have a particular
naming authority and are in a particular set of scopes.
|
Service Type Reply
| SrvTypeRply
| 10
| The message that is returned in response to the service type
request.
|
SA Advertisement
| SAAdvert
| 11
| UAs employ the SAAdvert to discover SAs and
their scopes in networks where no DAs are deployed.
|