Brocade Communications Systems ServerIron ADX 12.4.00 Manuale Utente

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ServerIron ADX Global Server Load Balancing Guide
75
53-1002437-01
Site persistence in GSLB using hashing
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SLB-ServerIronADX#clear gslb phash table zone-name gslb.com host-name www
Syntax: clear gslb phash zone-name <zone-name> host-name <host-name>
Show commands
Many existing show commands for GSLB global and host-level policy have been enhanced for 
hash-based persistence. Take note of the bold fields.
SLB-ServerIronADX#show gslb policy
  Default metric order: ENABLE
  Metric processing order:
                1-Server health check
                2-Remote SI's session capacity threshold
                3-Round trip time between remote SI and client
                4-Geographic location
                5-Remote SI's available session capacity
                6-Round-robin selection
  DNS active-only: DISABLE  DNS best-only: DISABLE  DNS override: DISABL
  DNS cache-proxy: DISABLE  DNS transparent-intercept: DISABLE
  DNS cname-detect: DISABLE  Modify DNS response TTL: ENABLE
  DNS TTL: 10 (sec), DNS check interval: 30 (sec)
  Remote SI status update period: 30 (sec)
  Remote SI health-status update period: 5 (sec)
  Session capacity threshold: 90%  Session availability tolerance: 10%
  Round trip time tolerance: 10%, round trip time explore percentage:5%
  Round trip time cache prefix: 20, round trip time cache interval: 120 
  Round trip time cache age refresh: DISABLE
  Round trip time algorithm selection:  USE PASSIVE ONLY
  Connection load: DISABLE
  Weighted Site Metric: DISABLE     Weighted IP Metric: DISABLE
  Active Bindings Metric: DISABLE
  persistent hashing: ENABLE
SLB-ServerIronADX#show gslb policy
  Default metric order: ENABLE
  Metric processing order:
                1-Server health check
                2-Remote SI's session capacity threshold
                3-Round trip time between remote SI and client
                4-Geographic location
                5-Remote SI's available session capacity
                6-Round-robin selection
  DNS active-only: DISABLE  DNS best-only: DISABLE  DNS override: DISABLE
  DNS cache-proxy: DISABLE  DNS transparent-intercept: DISABLE
  DNS cname-detect: DISABLE  Modify DNS response TTL: ENABLE
  DNS TTL: 10 (sec), DNS check interval: 30 (sec)
  Remote SI status update period: 30 (sec)
  Remote SI health-status update period: 5 (sec)
  Session capacity threshold: 90%  Session availability tolerance: 10%
  Round trip time tolerance: 10%, round trip time explore percentage:5%
  Round trip time cache prefix: 20, round trip time cache interval: 120 (se
  Round trip time cache age refresh: DISABLE
  Round trip time algorithm selection:  USE PASSIVE ONLY
  Connection load: DISABLE
  Weighted Site Metric: DISABLE     Weighted IP Metric: DISABLE
  Active Bindings Metric: DISABLE
  persistent hashing: ENABLE
  persistent hashing rehash disabled: ENABLE
SLB-ServerIronADX#show gslb policy
 Default metric order: ENABLE
 Metric processing order:
               1-Server health check
               2-Remote SI's session capacity threshold
               3-Round trip time between remote SI and client
               4-Geographic location
               5-Remote SI's available session capacity
               6-Round-robin selection
 DNS active-only: DISABLE  DNS best-only: DISABLE  DNS override: DISABLE
 DNS cache-proxy: DISABLE  DNS transparent-intercept: DISABLE
 DNS cname-detect: DISABLE  Modify DNS response TTL: ENABLE
 DNS TTL: 10 (sec), DNS check interval: 30 (sec)
 Remote SI status update period: 30 (sec)
 Remote SI health-status update period: 5 (sec)
 Session capacity threshold: 90%  Session availability tolerance: 10%
 Round trip time tolerance: 10%, round trip time explore percentage:5%
 Round trip time cache prefix: 20, round trip time cache interval: 120 (sec)
 Round trip time cache age refresh: DISABLE
 Round trip time algorithm selection:  USE PASSIVE ONLY
 Connection load: DISABLE
 Weighted Site Metric: DISABLE     Weighted IP Metric: DISABLE
 Active Bindings Metric: DISABLE
 persistent hashing: ENABLE
 persistent hashing rehash disabled: ENABLE