Brocade Communications Systems ServerIron ADX 12.4.00 - Manual (Page 88)

76 ServerIron ADX Global Server Load Balancing Guide
53-1002437-01
Weighted distribution of sites with hash-based persistence
1
In the previous screen shot, the field "persistent hash selection count =7" means IP 100.1.1.163
had been selected 7 times in result of a match in the hash persistent policy.
To display the hash table for a domain for which hash-based persistence is enabled, enter the
following command on the BP.
SLB-ServerIronADX2/2# show gslb phash table zone-name gslb.com host-name www
It displays the hash index, associated domain IP, and hit count for each hash entry.
Syntax: show gslb phash table zone-name <name> host-name <name>
Weighted distribution of sites with hash-based persistence
This section contains the following subsections:
• “Overview of distribution of sites with hash-based persistence” on page 76
• “Configuring distribution of sites with hash-based persistence” on page 79
Overview of distribution of sites with hash-based persistence
This section contains the following sub-sections:
• “GSLB hash-based persistence” on page 77
• “GSLB weighted hash-based persistence” on page 77
• “Hashing scheme” on page 77
• “IP address allocation” on page 77
• “IP address failure or removal from domain” on page 78
• “Rehashing for new IP address for a domain or state change from down to up” on page 78
• “Rehash: change in hash weight” on page 79
• “Disabling rehash on introduction of new IP addresses or state change from down to healthy”
on page 79
SLB-ServerIronADX#show gslb dns detail
ZONE: gslb.com
HOST: www:
(Global GSLB policy)
SLB-ServerIronADX#show gslb dns detail
ZONE: gslb.com
HOST: www:
(Global GSLB policy)
Flashback DNS resp
delay selection
(x100us) counters
TCP APP Count (%
* 100.1.1.163: dns v-ip ACTIVE N-AM 0 0 7 (100%)
Active Bindings: 1
site: local, weight: 0, SI: 100.1.1.2
SLB-ServerIronADX#show gslb dns detail
ZONE: gslb.com
HOST: www:
(Global GSLB policy)
Flashback DNS resp.
delay selection
(x100us) counters
TCP APP Count (%)
* 100.1.1.163: dns v-ip ACTIVE N-AM 0 0 7 (100%)
Active Bindings: 1
site: local, weight: 0, SI: 100.1.1.2
session util: 0%, avail. sessions: 5999865
preference: 128
Metric counter (count [selection-metric]):
Not selected yet
persistent hash selection count = 7