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®
3Com V7300 Voice
Applications Suite
Unified Messaging Suite
Intelligent Mirroring Guide
™
VCX V7000 IP Telephony Solution
System Release 5.0
Part Number 900-0153-01 AA
Published August 2004
http://www.3com.com/
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3Com Corporation Copyright © 2004, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, 350 Campus Drive transformation, or adaptation) without written permission from 3Com Corporation. Marlborough, MA 3Com Corporation reserves the right to revise this documentation and to make changes in content from 01752-3064 time to time without obligation on the part of 3Com Corporat
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3 CONTENTS ABOUT THIS GUIDE Assumptions 5 Conventions 5 Notices 5 Text 6 Related Documentation 6 Your Comments 7 INITIAL CONFIGURATION Overview 9 Hardware Prerequisites 9 IP Configuration 10 Single Network Configuration 10 Dual Network Configuration 11 Domain Name System (DNS) Configuration 13 Sample DNS Names and Files 14 Enabling Secure Copy (SCP) and Secure Shell (SSH) Commands 16 Network Time Protocol (NTP) Configuration 16 Configur
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4 Balanced Intelligent Mirroring Policy 22 Switching Between Active and Standby States 22 OPERATION Verifying Intelligent Mirroring Operation 25 Manual Switchover 26 Verifying Server Synchronization 26 Database 26 File System 27 INDEX
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ABOUT THIS GUIDE This chapter contains an overview of this guide, lists guide conventions, related documentation, and product compatibility. Assumptions This guide is intended for system administrators and assumes you have basic skills such as: ■ Basic UNIX command line usage ■ Knowledge of Solaris operating system utilities If the information in the release notes differs from the information in this guide, follow the instructions in the release notes. Conventions This section describes noti
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6 ABOUT THIS GUIDE Text Table 2 lists text conventions that are used in this guide. Table 2 Text Convention Descriptions Convention Description Text represented as a screen display This typeface represents displays that appear on your terminal screen, for example: Netlogin: Text represented as user entry. This typeface represents information that you must type, for example: cd /usr/bin Text represented as menu or sub-menu This typeface represents all menu and names sub-menu names within p
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Your Comments 7 Your Comments Your suggestions are important to us because we want to make our documentation more useful to you. Please send e-mail comments about this guide or any of the 3Com Voice Products documentation and Help systems to: VOICE_Techpubs_comments@3com.com Please include the following information with your comments: ■ Document title ■ Document part number (found on the front page) ■ Page number ■ Your name and organization (optional) Example: ® 3Com V7300 Voice Applications
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8 ABOUT THIS GUIDE
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INITIAL CONFIGURATION 1 This chapter provides an overview of how to configure Intelligent Mirroring on a Primary and Secondary server for the V7300 Voice Applications Suite. Intelligent Mirroring is the mirroring of application data on two independently running servers. The mirrored application data is composed of table data and message component files. Overview When you configure two servers for Intelligent Mirroring: ■ One of the servers operates in the active state ■ The other operates in
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10 CHAPTER 1: INITIAL CONFIGURATION IP Configuration 3Com recommends that you define the IP configuration using the /etc/hosts files on the two systems. The /etc/hosts file on each server must contain identical information about the Intelligent Mirroring configuration. Other information in the file may vary. The examples in this document contain the information that must be identical. For each network to which Intelligent Mirroring is connected, you must configure four unique IP addresses,
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IP Configuration 11 CAUTION: IP addresses 192.168.126.3 and 192.168.126.4 are the dynamic alias IP addresses. Do not associate them with any network interface. Sample /etc/hosts File Entries for a Single Network Configuration This section describes entries that you would add to the /etc/hosts file if your configuration was identical to the configuration examples listed earlier in this section. # # Internet host table # 192.168.126.1 voipbox1 voipbox1a voipbox1b voipbox1c voipbox1d 192.168.12
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12 CHAPTER 1: INITIAL CONFIGURATION Figure 1 Dual Network Configuration Primary Server Secondary Server Network A Network B System 1 (Primary Server) ■ System Name — voipbox1 ■ IP Address (subnetwork 126) — 192.168.126.1 (associated with the primary network interface on the Primary Server) ■ IP Address (subnetwork 127) — 192.168.127.1 (associated with the secondary network interface on the Primary Server) System 2 (Secondary Server) ■ System Name — voipbox2 ■ IP Address (subnetwork 126) — 19
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Domain Name System (DNS) Configuration 13 Sample /etc/hosts File Entries for a Dual Network Configuration This section describes entries that you would add to the /etc/hosts file if your configuration was identical to the configuration examples listed earlier in this section. # # Internet host table # 192.168.126.1 voipbox1 voipbox1a voipbox1c 192.168.126.2 voipbox2 voipbox2a voipbox2c 192.168.126.3 active activea activec 192.168.126.4 standby standbya standbyc 192.168.127.1 voipbox1b voipbox1
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14 CHAPTER 1: INITIAL CONFIGURATION 3 Restart the named service on the DNS server to update the server settings with the new configuration information. For any PC on which you intend to run an e-mail client program, configure the PC so that it uses, as its primary DNS server , the DNS server that you have just configured. Sample DNS Names Modify these sample host and file names to conform to your network and Files configuration. ■ E-mail Server Host Name — umsemail ■ DNS Suffix — vcx.wan.3co
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Domain Name System (DNS) Configuration 15 Sample file "vcx.wan.3com.com" $TTL 86400 @ IN SOA vcx.wan.3com.com. root.vcx.wan.3com.com. ( 200210210; serial, todays date + todays serial # 8H; refresh, seconds 2H; retry, seconds 1W; expire, seconds 1D ); minimum, seconds NS galaxy High light this MX record entry MX10 umsemail TXT "Voice Core eXchange, 3Com Corporation" localhost -A 127.0.0.1 umsemail A 192.168.126.1 A 192.168.126.2 voipbox
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16 CHAPTER 1: INITIAL CONFIGURATION Enabling Secure UMS uses shell scripts to synchronize the two servers. These scripts use Copy (SCP) and the SCP and SSH commands. For these commands to work properly in Secure Shell (SSH) this environment, you must configure each UMS server so that the Commands commands do not prompt for a password. Perform these steps on the voipbox1 and voipbox2 servers as user app: 1 To create the private and public keys, enter this command: ssh-keygen -t dsa 2 When you
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Network Time Protocol (NTP) Configuration 17 oscillator to stratum 8 in order to allow the two systems to use a lower stratum server (7 or lower) if one is available. By default, the system uses this drift file: /etc/ntp/drift. 3 On the voipbox2 system, create the /etc/ntp.conf file. 4 Edit the file and add these lines: server 127.127.1.1 peer voipbox1 5 On the voipbox1 server, su to root and execute these commands: /etc/init.d/ntpd stop /etc/init.d/ntpd start 6 On the voipbox2 server, su to r
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18 CHAPTER 1: INITIAL CONFIGURATION
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INSTALLATION 2 This chapter describes how to install Intelligent Mirroring on the Primary Server and the Secondary Server. Overview Follow these instructions, in the order that they are given, when you install and configure the servers. 1 Completely install the Primary Server before you begin to install the Secondary Server. See the instructions in Primary Server Installation, next. After you have installed the Primary Server, the system reboots itself. 2 Verify that the Primary Server is ope
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20 CHAPTER 2: INSTALLATION Sample Installation When you first start a VCX V7000 server, a firstboot script is run. The Script (for voipbox1) script asks you questions and configures the software based on your answers. This section shows the portion of the firstboot script that deals with configuring Intelligent Mirroring between two VCX UMS servers. Bold text indicates values that you must type. Press Enter after each entry. The example answers in this script assume that you are using voipbo
