User's Manual
Table Of Contents
- interWave WaveNet Link CX User Manual
- One - System Description
- 1-1 General
- 1-2 System Overview
- 1-3 Features
- 1-4 LinkCX Basic Structure
- 1-4.1 Radio Links
- 1-4.2 Data Stream
- 1-4.3 LinkCX Models
- 1-4.4 Mounting and Antenna Alignment
- 1-4.5 Interface Connectors and Indicators
- 1-4.6 Cables
- 1-4.7 Integral Antenna
- 1-4.8 External Antenna
- 1-4.9 Configuration, Operation, and Monitoring
- 1-4.10 SNMP
- 1-4.11 LinkCX Network Management Architecture
- 1-4.12 NMS Connectivity
- 1-4.13 Web-Based GUI Access Security
- 1-4.14 GUI Functions
- 1-5 Typical Applications
- 1-5.1 Internet (ISP)
- 1-5.2 Private Network Wireless Bridged LANs and WANs
- 1-5.3 PCS/PCN and Cellular Networks
- 1-5.4 Wireless Local Loop Networks and Local Exchange Bypass
- 1-5.5 Business Bypass and Local Exchange Bypass
- 1-5.6 Backhaul for Wireless MTU and MTU Access
- 1-5.7 Wireless Mesh Backhaul Networks
- 1-5.8 Wireless ATM Mesh Distribution with StreamNet
- 1-6 Specifications
- Two - Installation Steering Guide
- Three - Installation Planning
- Four - Installing the Link CX
- Five - Final Link CX Setup
- Six - Monitoring and Trend Analysis
- Seven - Troubleshooting the Link CX
- Appendix 1 - Interface Cable Pinouts
- Appendix 2 - Technical Specifications
- Appendix 3 - Using the Web-Based GUI User Interface
- Appendix 4 - Grounding and Lightning Protection
- Appendix 4 - Enterprise MIBs and Traps
Monitoring and Trend Analysis 83
Six
Monitoring and Trend Analysis
60000
Each Link CX and radio link can be monitored through either the built-in Web server or SNMP agent
interfaces.
6-1 Built-In Web Server Interface
A subset of the SNMP-accessible statistics is available through the Web server interface connected to a
web browser over an Ethernet link. These statistics can be read by logging in to display the Monitor
page, as shown in Appendix 3. Statistics can be repeatedly sampled using the Web browser reload or
refresh feature.
The easiest indicator to monitor is the RSSI. Keep a record of the RSSI levels measured in Step 87 in
Chapter Four. The Step 87 value is the RSSI level with Automatic Tx Power Control disabled (transmit-
ting at maximum power).
A properly designed radio link with a 20 dB or greater fade margin should indicate receive levels in the
area of -60 dBm at Link CX sites. The accuracy of the indicated RSSI is approximately ±5 dB over a
range of -90 dBm to -65 dBm.
6-2 SNMP Network and Element Management Systems
All monitored statistics are available through SNMP queries. In addition to MIB-II variables,
product-specific variables are available through the Link CX enterprise MIB, which can be retrieved via
FTP from F:/PUB/link_cx.mib (text file) in the Link CX file system. Most commercial SNMP NMSs and
EMSs have the ability to sample variables over time and display trends and raise alarms based on
defined thresholds. In addition, applicable SNMP traps are supported and can be used to raise alarms
on the NMS and/or EMS.
Any standard SNMP NMS or EMS can be used to monitor and control the Link CX network and
individual Link CX radios.
The Link CX has an enterprise MIB provided in standard ASCII format, which can be accessed for
printing. When a software upgrade is performed, the self-extracting file places all directories and
associated files necessary for the upgrade in a location specified by the operator at the time the
self-extracting file is executed. One of the directories created is /PUB, which contains the printable
enterprise ASCII text MIB file named link_cx.mib.
The enterprise MIB file is also stored in FLASH memory on the Link CX in F:/PUB. A copy of the
link_cx.mib file can be extracted from the Link CX using an ASCII FTP file transfer.