User's Manual

Table Of Contents
170 Operation
Chapter 4 - Operation and Administration
deployments with significant VoIP traffic. A minimum allocation of 3 symbols can
provide a higher capacity for VoIP calls, with a reduced overall throughput for
data services.
The options are 5 Symbols (the default) or 3 Symbols.
4.9.6 Performance Monitoring
The AU Performance Monitoring menu includes the following options:
Ports Counters
BER Test
Burst Error Rate Counters
4.9.6.1 Ports Counters
The Ports Counters option enables viewing or resetting the Back Plane and
Wireless ports counters. The information displayed for each counter is the
accumulated number since the last time the counters were reset. The counters
are reset each time the AU is reset, or upon activating the Reset option.
The counters describe the traffic at the Back Plane and Wireless ports, as follows:
Back Plane Port Counters
Data Bytes Received: The total number of data bytes received from the
Back Plane (NPU). Management frames and frames with errors are not
included.
Data Bytes Discarded on Rx: The number of bytes in packets discarded
due to communication errors between the AU and the NPU.
NOTE
In most deployments with both VoIP and Data services it is recommended to use the default 5
Symbols minimum allocation. Consult with Alvarion’s experts whether to use 3 Symbols minimum
allocation in certain sectors, according to the specific traffic that should be supported.
AU Minimum Allocation can be changed only via the Monitor program (not available via SNMP).
NOTE
The Back-Panel port of the AU is the internal Ethernet port between the AU and the NPU.