Brocade Communications Systems Mobility 7131 Series Service Manual download pdf (Page 178)

166 Brocade Mobility 7131 Access Point Product Reference Guide

53-1002517-01

Once the settings within the Radio Configuration screen are applied (for an initial

deployment), the current number of base bridges visible to the radio displays within the

BBs Visible field, and the number of base bridges currently connected to the radio displays

within the BBs Connected field. If this is an existing radio within a mesh network, these

values update in real-time.

7. Cli c k th e Advanced button to define a prioritized list of access points to define Mesh

Connection links. For a detailed overview on mesh networking and how to configure the radio

for mesh networking support, see Configuring Mesh Networking Support on page 9-447.

8. If using a dual-radio model access point, refer to the Mesh Timeout drop-down menu to define

whether one of the radio’s beacons on an existing WLAN or if a client bridge radio uses an

uplink connection. The Mesh Timeout value is not available on a single-radio access point,

since the radio would have to stop beaconing and go into scan mode to determine if a base

bridge uplink is lost. The following drop-down menu options are available:

NOTE

The Mesh Time Out variable overrides the Ethernet Port Time Out (EPTO) setting on the LAN page

when the access point is in bridge mode. As long as the mesh is down, the access point acts in

accordance to the Mesh Time Out setting regardless of the state of the Ethernet. However, if the

Ethernet goes down and the mesh link is still up, the EPTO takes effect.

For a detailed overview on mesh networking and how to configure the radio for mesh

networking support, see Configuring Mesh Networking Support on page 9-447.

9. The Client Bridge Signal Monitor feature continuously monitors the connection between the AP

and the Base Bridge to which it is mesh connected to. When the signal strength of the Base

Bridge falls below a configured threshold, the AP starts a periodic monitoring of the Base

Bridge’s signal strength for 60 seconds. This monitoring is abandoned if the signal strength

becomes more than the configured threshold during the period of monitoring. When this

happens, the monitoring period is reset back to 60 seconds. While this monitoring happens,

the AP also passively listens to and monitors the signal strength of the other Base Bridges.

If, at the end of 60 seconds, the Base Bridge’s signal strength remains below the

configured threshold, the AP compares the signal strength of the existing Base Bridge with

the signal strength of each of the found Base Bridges. All Base Bridges with signal strength

below the signal strength of the connected Base Bridge are ignored. Of the remaining

Disabled When disabled, both radios are up at boot time and beaconing. If one radio (radio 1) does

not have a mesh connection, the other radio (radio 2) is not affected. Radio 2 continues to

beacon and associate MUs, but MU's can only communicate amongst themselves using the

access point. Disabled is the default value.

Uplink Detect When Uplink Detect is selected, the access point only boots up the radio configured as a

client bridge. The access point boots up the second radio as soon as the first mesh

connection is established. However, if the client bridge radio loses its uplink connection,

the second radio shuts down immediately. Uplink detect is the recommended setting within

a multi-hop mesh network.

Enabled If the mesh connection is down on one radio (radio 1), the other radio (radio 2) is brought

down and stops beaconing after the timeout period (45 - 65535 seconds). This allows the

client bridge (radio 1) to roam without dropping the MU's associated to radio 2. The

disadvantage is that radio 2 may beacon for the timeout period and have to drop

associated MU's because radio 1 could not establish its uplink. The default timeout period

is 45 seconds.

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Brocade Communications Systems Mobility 7131 Series Service Manual Page 178

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