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Local mesh
Operating channel
Operating channel
If a mesh operates on a dynamic frequency selection (DFS) channel, the master node selects
the operating channel. If another node detects radar and switches channels, that node reports
the channel switch to the master node, which initiates a channel switch for the nodes
connected to it. This allows the local mesh to converge on a specific channel.
A node that uses a DFS channel and that loses connection with its master, scans channels to
find a master on another channel, which can be a new master or the same master.
If the local mesh does not operate on a DFS channel, configure the radios in one of the
following ways:
Configure the radios on all nodes to use the same fixed channel.
Configure the radios for automatic channel selection. In this case the master selects the
least noisy channel. Slaves and alternate masters scan channels until they find the master,
then tune to the master channel and link with the master.
Local mesh profiles
A local mesh profile defines the characteristics for the type of links that can be established
with other nodes as follows:
Role Upstream link Downstream link
Master None. Up to nine links with alternate
master or slave nodes.
Alternate master A single link to a master node or
alternate master node.
Up to eight links with alternate
master or slave nodes.
Slave A single link to a master node or
alternate master node.
None.
Each node supports up to six profiles plus one provisioning profile. When a profile is active, a
node constantly scans and tries to establish links as defined by the profile.
The local mesh provisioning profile is used by the wireless link created on a provisioned
AP to support discovery of the service controller. Initially, this link operates in slave mode. If
you configure this profile as an alternate master, then it can also be used to establish up to
nine downstream links with alternate master or slave nodes. See Provisioning local mesh
links on page 13-12 for more information.
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