MSM7xx Controllers Configuration Guide v6.4.0

it must have an IP address assigned to it. The Selected interfaces list shows all interfaces
on which the Bonjour gateway is enabled.
When working with access-controlled VSCs:
◦ Assign at least one interface to the Selected interfaces list. This is required so that
access-controlled clients can reach Bonjour services on another network. Typically,
you would assign the VSC egress mapping you defined on the VSC page to the
Selected interfaces list. If you leave the VSC egress mapping set to <Default> you
must assign the Internet port (Internet network on the MSM720) to the Selected
Interfaces list.
Note: If you assign a VLAN to a VSC egress mapping, access-controlled clients can
only reach Bonjour services that are on the same VLAN (as long as it is not the same
VLAN used for the control channel between the AP and controller).
When working with non-access-controlled VSCs:
◦ Assign at least two interfaces to the Selected interfaces list.
3. Select Save.
Bonjour traffic management
The traffic management feature reduces wireless network congestion caused by Bonjour's heavy
reliance on mDNS multicasts. When enabled, only interested wireless devices receive Bonjour
service announcements, and the use of mDNS multicasts is limited to finding interested stations.
Traffic management is performed on the controller for clients connected to access-controlled VSCs,
and on the APs for clients connected to non-access-controlled VSCs.
Traffic manager listens for Bonjour traffic with any of the following attributes:
• Queries and responses sent to address 224.0.0.251, UDP port 5353.
• Queries for a name ending with .local sent to address 224.0.0.251 on UDP source and
destination ports 5353.
• Queries and responses for names that do not end with .local. (Traffic filters are not applied
to these queries. They cannot be filtered. However, the gateway will relay them.)
• Unicast queries and responses sent to UDP port 5353.
Traffic manager intercepts all multicast announcements from Bonjour devices and stores them. It
does not forward them onto the wireless network. Instead, it waits for a matching query from a
wireless device. When this occurs, the announcement is forwarded only to that station.
Examples
These examples illustrate how traffic manager and Bonjour gateway can provide users with access
to printers at different places within the network, while at the same time limiting multicasts on the
wireless networking infrastructure.
When using a non-access-controlled VSC
In this example, all wireless stations are connected to a non-access-controlled VSC. Bonjour gateway
is enabled on the controller and configured to relay Bonjour traffic between Network 1 and Network
2. Traffic management is also enabled.
Bonjour traffic management 235