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C H A P T E R 3 Configure DNS Servers
23
Multiple-VIP
Response
A DNS response may contain multiple answers. A standby VIP is
automatically considered as a response if it is marked “IN USE” due
to a failed VIP. When multi-VIP standby is enabled, standby VIPs are
included in a response if the number of additional VIPs in the
response has not been met
1
. To include standby VIPs, type config
dns zones <zonename> hostnames <hostname> multi-vip-
standby enable.
HP SA9200#config dns zones somedomain.xyz-
ex.com hostnames www multi-vip-standby enable
The number of additional answers in a response can be configured.
The range is from 0 to 15.
HP SA9200#config dns zones somedomain.xyz-
ex.com hostnames www add-rec-responses 4
To verify whether multi-VIP standby is enabled or check the number
of additional responses, type config dns zones
<zonename> hostnames <hostname> info.
HP SA9200#config dns zones somedomain.xyz-
ex.com hostnames www info
1.
If multi-VIP standby is enabled when using the Flash load balancing method,
standby VIPs from a site are not included if all of the VIPS are (1) standby and,
(2) not marked “IN USE” due to a failed VIP at another site.
- 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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