BelAir100SN User Guide
Wi-Fi Backhaul Link Configuration
May 31, 2010
Confidential
Document Number BDTM11001-A01 Released
Setting a Link RSSI
Threshold
/interface/wifi-<n>-<m>/set backhaul mesh-min-rssi <rssi_value>
This command lets you set a signal strength threshold for creating mesh links. If
a radio signal from another node is weaker than the specified threshold, then
no link is created to that other node, except if there is no other link to either
node at each end of the link. In that case, the link is still created even if the
radio signal is weaker than the specified threshold.
This command applies only when a node is forming MP-to-MP links with other
nodes. Existing links are not affected by this command.
The
rssi_value
parameter is specified in as a negative number in dBm. The
default value is -100 dBm. Use the
show config backhaul
command to display
the current value.
Example
/interface/wifi-1-1# set backhaul mesh-min-rssi -70
The previous command sets the link RSSI threshold to -70 dBm. If the signal
from another radio is stronger than -70 dBm, then a backhaul link to that radio
is created. If it is weaker than -70 dBm, then a link is not created.
Managing the Mesh
Blacklist
/interface/wifi-<n>-<m>/add backhaul blacklist <mesh_pt_MAC_addr>
/interface/wifi-<n>-<m>/del backhaul blacklist <mesh_pt_MAC_addr>
These commands allow you to control whether or not a link is used between
two mesh points in an MP-to-MP mesh. To blacklist a link, you need to log in to
both ends of the link and put the radio of other node on the local blacklist. For
example, to prevent the use of a link between node A and B, you need to:
1 Log in to node A and add to its blacklist the MAC address of node B radio.
2 Log in to node B and add to its blacklist the MAC address of node A radio.
The MAC addresses of the node radios can be determined with the
show
backhaul status
command.
Typically, these commands are used to disable an unstable link. This behavior
may occur when either radio at each end of the link is operating at the limit of
its sensitivity.
As well, these commands can be used to disable a particular link if the RF plan
predicts low RSSI values for it.