User's Manual

69 | Wireless configuration HP Cloud Network Manager | User Guide
Figure 5: Bonjour support architecture
Bonjour support with Cloud Network Manager
Bonjour support capabilities are available in HP WLANs where Wi-Fi data is transmitted via APs. Bonjour support
is available on an HP WLAN that is managed by Cloud Network Manager.
l The Bonjour support administrator assigns the Bonjour support operator role to an end user, which authorizes
the user to register their device—such as an Apple TV.
l Cloud Network Manager maintains information for all mDNS services.
l Cloud Network Manager responds to device queries based on contextual data such as user role, username, and
location.
Bonjour support solution
In large universities and enterprise networks, it is common for Bonjour-capable devices to connect to the network
across VLANs. As a result, user devices such as an iPad on a specific VLAN cannot discover an Apple TV that
resides on another VLAN. As the addresses used by the protocol are link-scope multicast addresses, each query
or advertisement can only be forwarded on its respective VLAN.
Broadcast and multicast traffic are usually filtered out from a wireless LAN network to preserve airtime and battery
life. This inhibits the performance of Bonjour services as they rely on multicast traffic. HP addresses this mDNS
challenge with Bonjour support technology.
Bonjour support leverages key elements from portfolio of HP including operating system software for Cloud
Network Manager. Bonjour support maintains seamless connectivity between clients and services across VLANs
and SSIDs. The mDNS packet traffic is minimized, thereby preserving valuable wired network bandwidth and
WLAN airtime.
The following list summarizes the filtering options that are integrated with Cloud Network Manager deployment
models:
l Allow mDNS to propagate across subnets/VLANs
l Limit multicast mDNS traffic on the network
l VLAN based mDNS service policy enforcement
l User-role based mDNS service policy enforcement
Bonjour support also enables context awareness for services across the network: