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C H A P T E R 4 HP Multi-Site Traffic Director Server Appliance SA9200 User Guide
32
Part 2 –
Changing to
Flash
Response
Mode
Balancing
Key Concepts
• Flash Response Mode
• Associating SA9200s with a site
Procedures
Now that the SA9200 is configured and functioning properly it is
time to modify the configuration to use Flash Response Mode
balancing instead of Weighted Round Robin.
Step 1. Associate SA9200s with a site.
Flash Response Mode works by sending DNS responses back to the
client from a source that is as close (network wise) as possible to the
address it is returning. Only the SA9200s are capable of sending
Flash responses.
HP SA9200/config/dns/isvgroups/westcoastsite#
flash-src 10.1.1.1
Primary Flash Src set to 10.1.1.1
HP SA9200/config/dns/isvgroups/eastcoastsite#
flash-src 10.1.2.1
Primary Flash Src set to 10.1.2.1
Step 2. Change the host balancing method to Flash
Response Mode.
HP SA9200/config/dns/zones/geo.mstd-ex.com/
hostnames/www# method flash
Load Balancing Method set to flash
Step 3. Commit the configuration changes.
Now that the changes are completed, save a snapshot and commit the
configuration. Note that now that a secondary SA9200 is online these
configuration changes are instantly propagated to the secondary
SA9200 (eastcoastsite) whenever the commit all command is
executed.
- 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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