Brocade Communications Systems ServerIron ADX 12.4.00 Manual Manual page 246

2
Displaying GSLB for IPv6 configurations
TABLE 22
This field...
Round trip time tolerance
Round trip time explore
percentage
Round trip time cache prefix
Round trip time cache interval
Flashback appl-level delay
tolerance
TCP-level delay tolerance
Displaying the user-configured GSLB policy
Use the show gslb policy command to view user-defined GSLB policy settings for the ServerIron ADX
including the default processing order of the GSLB policy algorithm and the status of many optional
features including the active-only and best-only DNS response parameters.
To display the user-configured GSLB policy, enter the following command.
ServerIronADX(config)# show gslb policy
Default metric order: ENABLE
Metric processing order:

DNS active-only: DISABLE
Modify DNS response TTL: ENABLE
DNS TTL: 10 (sec), DNS check interval: 30 (sec)
Remote ServerIronADX status update period: 30 (sec)
Session capacity threshold: 90%, session capacity 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)
Flashback appl-level delay tolerance: 10%, TCP-level delay tolerance: 10%
In this example, the default order of the policy metrics is in effect. Metrics that are disabled by
default (such as the administrative preference) are not listed.
234
GSLB policy information (Continued)
Displays...
Specifies the percentage by which the RTT for one site can differ from the RTT
for another site without this metric resulting in selection of one site over the
other.
Indicates the percentage of client requests from a given network for which the
GSLB ServerIron ADX intentionally ignores the RTT metric when evaluating the
IP addresses in the DNS reply. The explore percentage prevents the ServerIron
ADX from continually biasing its site selection based on the first ServerIron ADX
to return RTT information. Refer to
page 53.
Indicates the length (number of significant bits) of entries in the GSLB
ServerIron ADX's IP address cache. The prefix determines the extent to which IP
addresses are aggregated into entries in the cache.
Indicates how many seconds the GSLB ServerIron ADX keeps an unrefreshed
RTT cache entry in its cache before the entry ages out.
Indicates the percentage of difference that can exist between application level
FlashBack response times for two sites, without the ServerIron ADX preferring
one site over the other based on this metric.
Indicates the percentage of difference that can exist between Layer 4
FlashBack response times for two sites, without the ServerIron ADX preferring
one site over the other based on this metric.
1-Server health check
2-Remote ServerIronADX's session capacity threshold
3-Round trip time between remote ServerIronADX and client
4-Geographic location
5-Remote ServerIronADX's available session capacity
6-Server flashback speed
7-Least response selection
DNS best-only: DISABLE
"Modifying round-trip time values"
DNS override: DISABLE
ServerIron ADX Global Server Load Balancing Guide
on
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