FibeAir IP-20C/S/E
User Guide
Ceragon Proprietary and Confidential
Page 91 of 597
3.7.1.1 2+2 Space Diversity
2+2 HSB Space Diversity provides both equipment protection and signal
protection. If one unit goes out of service, the other unit takes over and
maintains the link until the other unit is restored to service and Space
Diversity operation resumes.
2+2 HSB Space Diversity utilizes two IP-20C units operating in dual core
mode. In each IP-20C unit, both radio carriers are connected to a single
antenna. One optical GbE port on each IP-20C is connected to an optical
splitter. Traffic must be routed to an optical GbE port on each IP-20C unit.
In effect, a 2+2 HSB configuration is a protected 2+0 Space Diversity
configuration. Each IP-20C monitors both of its cores. If the active IP-20C
detects a radio failure in either of its cores, it initiates a switchover to the
standby IP-20C.
3.7.2
MIMO Mate Management Access
For MIMO configurations using in-band management and an external switch
operating in LAG mode, you must enable MIMO Mate Management Access in
order to manage both units via in-band management. When MIMO Mate
Management Access is enabled, the two units exchange incoming management
packets, ensuring that all management data is received by both units.
Note that MIMO Mate Management Access should only be enabled if both of
the following conditions exist:
In-band management
External switch using LAG
If either of these conditions is not present, MIMO Mate Management Access
should be disabled. By default, the feature is disabled.
To enable MIMO Mate Management Access, enter the following command:
root> radio mimo mate mng access set admin enable
To disable MIMO Mate Management Access, enter the following command:
root> radio mimo mate mng access set admin disable
To display whether MIMO Mate Management Access is enabled, enter the
following command:
root> radio mimo mate mng access show
Note:
MIMO Mate Management Access can only be configured via
CLI.
3.7.3
Creating a MIMO or Space Diversity Group
Note:
Only one MIMO or Space Diversity group can be created
per IP-20C unit.
To create a MIMO or Space Diversity group:
1 Select Radio > Groups> MIMO. The MIMO page opens.
2 Click Create MIMO. The Create MIMO Group page opens.
