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C H A P T E R 2 Multi-Site Traffic Management Without HP Traffic Directors
9
Multi-Site
Traffic
Management
Without HP
Traffic
Directors
The SA9200 can support data centers, whether or not they have an HP
Traffic Director. Without these HP products, the SA9200 can monitor
site service availability by using an ISV method:
• Ping (ICMP)
• TCP Open probe
• HTTP URL probe
Typical
Configuration
The SA9200 can be used with a wide variety of topologies but a basic
example of a SA9200 configuration might consist of two SA9200s
and four HP SA8200s (one SA9200 at each location that the site is
distributed across, and two SA8200s or two SA8220s in serial fail-
over mode for each location). For illustrative purposes, these devices
are configured to balance www.mstd-ex.com. Because the SA9200
does not resolve records aside from hostnames (e.g., no MX records
or reverse DNS lookups), your existing DNS server should remain
authoritative for the domain, mstd-ex.com. A new zone, zone.mstd-
ex.com, must be created and your existing DNS server must delegate
authority for this zone to all
of the SA9200s. An alias,
www.zone.mstd-ex.com is created for www.mstd-ex.com. This zone
and alias are transparent to users connecting to your site. They still
requests www.mstd-ex.com and are referred to the optimal site by the
SA9200.
SA9200 Overview - A Basic Configuration
Internet
SA9200 secondary
servers
SA9200 primary
SA8200 or SA8220s
servers
Client
Los Angeles location Chicago location
SA8200 or SA8220s
- Publication Number 2
- Disclaimer 2
- Warranty 2
- Contents 3
- Chapter 5: Boot Monitor 55 4
- Chapter 6: CLI Reference 67 4
- Chapter 7: SNMP Support 149 5
- Appendix A: Diagnostics 165 5
- Support Services 189 6
- Glossary 193 6
- Index 197 6
- Introduction 7
- Who Should Use This Book 8
- User Guide Summary 9
- Theory of 11
- Operations 11
- Site Balancing 12
- Authoritative 13
- DNS Servers 13
- Using HP Traffic Directors 14
- • Ping (ICMP) 15
- • TCP Open probe 15
- • HTTP URL probe 15
- Site Balancing Methods 16
- Managing Unequal Site Servers 17
- Flash DNS 18
- Partial 18
- Failures 18
- Service Standby 19
- Multiple VIP Response 20
- Definitions 20
- C H A P T E R 2 Definitions 21
- CLI Configuration 23
- Adding a 24
- Secondary 24
- Creating 25
- 10.54.67.2 26
- NSLookup 28
- Configure DNS Servers 28
- Multiple-VIP 29
- Response 29
- Multi-Site 31
- Scenarios 31
- Part 1 – Initial 32
- C H A P T E R 4 Scenario 1 33
- URL with each service 34
- Key Concepts 38
- Procedures 38
- Part 3 – 39
- Adding Load 39
- Balancers to 39
- ISV Groups 40
- Scenario 2 45
- C H A P T E R 4 Scenario 2 47
- Services 48
- Backup Sit 50
- Scenario 1, Part 1, Step 6 58
- Boot Monitor 61
- Accessing the Boot Monitor 62
- Command 63
- Reference 63
- Example: 67
- CLI Reference 73
- Line Syntax 77
- CLI Command Summary 78
- Command Tree (Config) 79
- File Management Commands 81
- Configuration Commands 81
- System Commands 81
- SNMP Commands 82
- DNS Commands 83
- Show Commands 87
- Global & CLI 89
- • ipaddr is the IP address 93
- Management 94
- Commands 101
- Command Description 103
- Config Sys SNMP Commands 105
- <community string> 107
- C H A P T E R 6 DNS Commands 109
- Config DNS Agents Commands 111
- Config DNS ISV Groups Command 119
- Service: 10.10.9.8:80 122
- Probe Method: none 122
- Probe Method: none 123
- Config DNS Zones Commands 124
- mysite-ex.com 125
- Host: host1.com 129
- Config DNS Flash Commands 136
- Flash Information: 139
- Queries: 0 Referrals: 0 148
- SNMP Support 155
- HP MIB Tree 156
- Supported 157
- Where to find 157
- MIB Files 157
- Agent Metrics 158
- Service 159
- Metrics Group 159
- ISV Metrics 160
- SNMP Traps 161
- Configuring Community 163
- Parameters 163
- Configuring Other SNMP 164
- Displaying SNMP Parameters 165
- Software Updates 167
- <myftppw> 168
- Rebooting with the New Image 169
- Restoring Your Previous 169
- Configuration 169
- Diagnostics 171
- Power Indication 172
- Runtime LED Diagnostics 173
- System Log 174
- WDOG: The Watch Dog process 175
- BACKEND Process 176
- DNS_STATS Daemon 177
- Cleaning the Dust 179
- Regulatory 181
- Information 181
- VCCI Statement 182
- FCC Part 15 Compliance 182
- Statement 182
- Canada Compliance 183
- Statement (Industry Canada) 183
- CE Compliance Statement 183
- CISPR 22 Statement 184
- VCCI Class A (Japan) 184
- Australia 184
- AVERTISSEMENT 186
- AVVERTENZA 188
- ADVERTENCIAS 189
- Wichtige Sicherheitshinweise 190
- Terms, Conditions and 193
- Software License 193
- Support Services 195
- • An HP-authorized reseller 196
- Latin America 198
- Countries 198
- Glossary 199
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