BelAir20E User Guide
Mobile Backhaul Point-to-point Links
April 2, 2012
Confidential
Document Number BDTM02201-A01 Standard
mobile link identifiers and mobile channels are not used elsewhere in the
network. If a neighboring stationary subscriber station uses a link identifier and
channel similar to a mobile subscriber station, then it can interfere with the
creation of links between the mobile backhaul units.
With mobile backhaul point-to-point links, the base station is passive. The
subscriber station determines whether or not to connect or disconnect from a
base station. If a connection is lost, then the subscriber station starts its
scanning process.
Scanning Process
If a subscriber station scans for available links when either member of its mobile
link pair is disconnected from a base station. It scans all configured channels
looking for available base station links. The subscriber station selects the link
with a matching mobile link identifier and the best signal strength.
If another link in the subscriber station is using a channel in the configured
channel list, then this channel is skipped by the scanning process. Once
connected, the subscriber station does not scan again until the connection is
lost.
Sample Subscriber
Station
Configuration
1 Configure the topology and privacy settings, and enable each Wi-Fi
interface.
/interface/wifi-2-1# set backhaul link topology p2p privacy
disabled
/interface/wifi-2-1# set backhaul admin-state enabled
2 Disable RSTP dynamic cost for each backhaul link. The mobility service
manages link cost.
/protocol/rstp# set interface wifi-2-1 dynamic-cost disable
3 Configure the mobile backhaul point-to-point links.
a Specify the mobile link identifier with the
set network-identifier
command.
/services/mobility# set network-identifier mobilityTest
b Specify the topology and role.
/services/mobility# set topology p2p-mobile role SS
c Define the channels expected from the shore links. Up to eight lists can
be defined.
/services/mobility# add scan-list 2 148,61,151