Cisco Cisco 5520 Wireless Controller 기술 참조
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Bonjour Gateway Wireless LAN Controller Deployment Guide, Release 7.5
Deployment Considerations
Deployment Considerations
Bonjour protocol operates on service announcements and service queries which allow devices to ask and
advertise specific applications such as:
advertise specific applications such as:
•
Printing Services
•
File Sharing Services
•
Remote Desktop Services
•
iTunes File Sharing
•
iTunes Wireless iDevice Syncing (in Apple iOS v5.0+)
•
AirPlay offering the following streaming services:
–
Music broadcasting in iOS v4.2+
–
Video broadcasting in iOS v4.3+
–
Full screen mirroring in iOS v5.0+ (iPad2, iPhone4S or later)
Each query or advertisement is sent to the Bonjour multicast address for delivery to all clients on the
subnet. Apple’s bonjour protocol relies on mDNS operating at UDP port 5353 and each query or
advertisement are sent to the following reserved group addresses:
subnet. Apple’s bonjour protocol relies on mDNS operating at UDP port 5353 and each query or
advertisement are sent to the following reserved group addresses:
•
IPv4 Group Address – 224.0.0.251
•
IPv6 Group Address – FF02::FB
The addresses used by the Bonjour protocol are link-local multicast addresses and thus are only
forwarded on the local L2 domain. Routers cannot use multicast routing to redirect the traffic because
the time to live (TTL) is set to one, and link-local multicast is meant to stay local by design.
forwarded on the local L2 domain. Routers cannot use multicast routing to redirect the traffic because
the time to live (TTL) is set to one, and link-local multicast is meant to stay local by design.
VLAN
Virtual LAN
SSO
Stateful Switchover
mDNS
Multicast Domain Name service
WiSM-2
Wireless Service Module-2
Term
Expansion