MSM7xx Controllers Configuration Guide v6.4.0

Mesh ID
A unique number that identifies a series of nodes that can connect together to form a local
mesh network.
Minimum SNR
(Alternate master or slave nodes)
This node will only connect with other nodes whose SNR is above this setting (in dB).
SNR cost per hop
(Alternate master or slave nodes)
This value is an estimate of the cost of a hop in terms of SNR. It indicates how much SNR
a node is willing to sacrifice to connect to node one hop closer to the root node, because
each hop has an impact on performance, especially when using a single radio.
Allowed downtime
The maximum time (in seconds) that a link can remain idle before the link actually gets
deleted. When a slave (or alternate master) looses its link to its master, the discovery phase
is re-initiated.
Maximum links
(Master or alternate master nodes)
The maximum number of upstream and downstream links that this node can support.
Initial discovery time
(Alternate master or slave nodes)
Amount of time that will be taken to discover the best available master node. The goal of
this setting is to delay discovery until all the nodes in the surrounding area have had time
to startup, making the identification of the best master more accurate. If this period is too
short, a slave may connect to the first master it finds, not necessarily the best.
Provisioning local mesh links
APs operating in controlled mode must be able to discover and connect with a controller. When
operating as part of a local mesh, any AP that can only discover the controller via a wireless link
must be provisioned before being deployed. In this example, AP 1, AP 2, AP 4, and AP 5 must
be provisioned prior to deployment for discovery to be successful. (Since AP 3 is using a wired
link, it does not need to be provisioned for this scenario.)
Controller
AP 3
AP 4AP 2
Master
Alternate master BAlternate master A
AP 5AP 1
Slave
Provisioning is done before APs are deployed using either of the following methods:
• Directly connect to each AP and use its management tool to define provisioning settings.
• Connect the APs to the controller (either directly via the LAN port or through a local area
network). After the APs are discovered, use the controller management tool to define
provisioning settings by opening the Provisioning > Connectivity page at either the group or
AP level.
Provisioning local mesh links 391