AACC 6.4: troubleshooting when network outages occur in a High Availability Contact Center


Doc ID    SOLN268908
Version:    3.0
Status:    Published
Published date:    04 Jan 2016
Created Date:    21 May 2015
Author:   
Samuil Bonev
 

Details

AACC 6.4

Problem Clarification

The High Availability-System Management and Monitoring Component (SMMC) monitors network communications, network latency, and contact center components. If the High Availability Network Timeout threshold value is not suitable for your network then outages can occur. You must configure the High Availability SMMC Network Timeout threshold value high enough to be tolerant of normal network latency, but low enough to be responsive if a network failure occurs. Avaya recommends that you analyze your network performance after running HA for a number of days. Use the Network Analyzer utility to analyze the SMMC logs and verify whether your Network Timeout value is set correctly for your network performance. This procedure shows you how to determine what your current network threshold value is.

Cause

Network Outage

Solution

1. Log on to the High Availability server.
2. Retrieve the Active server SMMC log files from Avaya\Logs\Common Components\SMMC\CC_SMMC_NM_x.log, where x indicates a running numeric identifier between 1 and 9.
3. Copy the SMMC log files into the same folder as the Network Log Analyzer utility: D:\Avaya\Contact Center\Manager Server\CCSMMC\util
4. On the Active server, open a command prompt and navigate to the same folder as the Network Analyzer utility.
5. At the command prompt enter: NetworkLogAnalyser.exe CC_SMMC_NM_1.log CC_SMMC_NM_2.log...
6. The Network Log Analyzer utility processes the SMMC statistical network data in the log files and recommends a Network Timeout value. For example:
$> NetworkLogAnalyser.exe CC_SMMC_NM_1.log
....
....
===== OUTAGES PACKET DATA ANALYSIS END ====

Recommendation:
---------------
Network Timeout= 2× Max(Outage_Duration)= 2× 325ms = 650ms

While processing the statistical data, the Network Log Analyzer utility also produces a comma-separated file (network-analysis.csv) that can be imported in to Microsoft Excel using the“network-analysis.xlsm” spreadsheet.
7. Open the file network-analysis.xlsm using Microsoft Excel and ensure that you have macros turned on. Follow the instructions given in the spreadsheet.
8. From the resulting chart and recommended Network Timeout value, determine what the suitable Network Timeout value for your network is and update accordingly.

Additional Relevant Phrases

NetworkTimeout(ms):400 Active To Standby Partial Outage

Avaya -- Proprietary. Use pursuant to the terms of your signed agreement or Avaya policy