DV102412 Microchip Technology, DV102412 Datasheet - Page 26

• Manufacturer Part Number: DV102412
• Description: WiFi / 802.11 Development Tools WiFi G Demo Board
• Manufacturer: Microchip Technology

Specifications of DV102412

• Rohs: yes
• Product: Demonstration Boards
• Tool Is For Evaluation Of: MRF24WG0MA
• Protocol Supported: 802.11 b/g
• Frequency: 2.4 GHz
• Interface Type: I2C, SPI, UART
• Description/function: Provides a low-cost and portable development system for Microchip?s MRF24WG0MA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• For Use With: MRF24WG0MA

Wi-Fi G Demo Board User’s Guide
4.4
DS50002147A-page 26
ZERO CONFIGURATION/BONJOUR
Zero Configuration (Zeroconf) provides a mechanism to simplify the device configura-
tion on a network. The term Zeroconf is titled from the names Bonjour (Apple) and
Avahi (Linux), and is an Internet Engineering Task Force (IETF) standard. Zeroconf
provides simplified naming conventions, instead of relying on the IP addresses alone.
The Zeroconf is built on the following three core technologies:
4.4.1
The first component of Zeroconf is the ability to self-assign an IP address to each mem-
ber of a network. Usually, a Dynamic Host Configuration Protocol (DHCP) server han-
dles such situations. However, when no DHCP server exists, Zeroconf-enabled
devices negotiate the unique IP address amongst themselves.
4.4.2
The second component of Zeroconf is the ability to self-assign the host names. Multi-
cast Domain Name System (mDNS) provides the local network with the ability to have
the features of a DNS server. User can use the host names to access the devices on
the network. When devices select to use the same host name, as in the IP address res-
olution, each of the devices has the ability to self-assign the Auto-negotiate New
Names, usually appending a number at the end of the name.
4.4.3
The last component of Zeroconf is service discovery. All Zeroconf devices can broad-
cast what services they provide. For instance, a printer can broadcast about available
printing services. A thermostat can broadcast that it has an HVAC control service. For
a specific service, the user can see the list of devices that provide the service, and
connect to it. This eliminates the need to know whether something exists on a network
(and what its IP or host name is). The user can query the network to see if a certain
service exists or not, and easily connect to it.
4.4.4
An iPhone and an apps supporting Zero Configuration is used in the demonstration.
Link Local
Multicast DNS
Service Discovery
Zero Configuration & mDNS demonstration
 2013 Microchip Technology Inc.