UniversalAttributeIdServiceAvailability Field

public const ServiceAttributeId ServiceAvailability = 

Public Const ServiceAvailability As ServiceAttributeId = 

public:
literal ServiceAttributeId ServiceAvailability = 

static val mutable ServiceAvailability: ServiceAttributeId

Field Value

[8-bit unsigned integer]

“ The ServiceAvailability attribute is an 8-bit unsigned integer that represents the relative ability of the service to accept additional clients. A value of 0xFF indicates that the service is not currently in use and is thus fully available, while a value of 0x00 means that the service is not accepting new clients. For services that support multiple simultaneous clients, intermediate values indicate the relative availability of the service on a linear scale. ”

“ For example, a service that can accept up to 3 clients should provide ServiceAvailability values of 0xFF, 0xAA, 0x55, and 0x00 when 0, 1, 2, and 3 clients, respectively, are utilizing the service. The value 0xAA is approximately (2/3) * 0xFF and represents 2/3 availability, while the value 0x55 is approximately (1/3)*0xFF and represents 1/3 availability. Note that the availability value may be approximated as ”

“ ( 1 - ( current_number_of_clients / maximum_number_of_clients ) ) * 0xFF ”

“ When the maximum number of clients is large, this formula must be modified to ensure that ServiceAvailability values of 0x00 and 0xFF are reserved for their defined meanings of unavailability and full availability, respectively. ”

“ Note that the maximum number of clients a service can support may vary according to the resources utilized by the service's current clients. ”

“ A non-zero value for ServiceAvailability does not guarantee that the service will be available for use. It should be treated as a hint or an approximation of availability status. ”

Reference