Displaying rtt information – Brocade Communications Systems ServerIron ADX 12.4.00 User Manual
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ServerIron ADX Global Server Load Balancing Guide
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Displaying GSLB information
1
For a description of the information shown by this command, refer to
Displaying RTT information
The GSLB ServerIron ADX maintains a cache of RTT information received from the site ServerIron
ADXs through the GSLB protocol. You can display the RTT information the GSLB ServerIron ADX has
related to a client IP address. To display the RTT information, specify a potential client address, as
shown in the following example.
The command in this example shows the RTT prefix information the GSLB ServerIron ADX has
related to client IP address 209.156.100.100. In this case, the GSLB ServerIron ADX has two RTT
entries for zone www.brocade.com.
Syntax: show gslb cache
The
The following example shows information for a user-configured static entry.
ServerIronADX(config)# show gslb policy
Default metric order: DISABLE
Metric processing order:
1-Round trip time between remote ServerIronADX and client
2-Remote ServerIronADX's session capacity threshold
3-Remote ServerIronADX's available session capacity
4-Server flashback speed
5-Remote ServerIronADX's preference value
6-Least response selection
DNS active-only: DISABLE DNS best-only: DISABLE DNS override: 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%
ServerIronADX(config)# show gslb cache 209.157.0.0
prefix length = 20, prefix = 209.157.0.0, region = N-AM
prefix source = client-query
brocade.com:
site = sunnyvale, ServerIronADX = slb-1(209.157.22.209), rtt = 5 (x100 usec)
site = atlanta, ServerIronADX = slb-1(192.108.22.112), rtt = 10 (x100 usec)
ServerIronADX(config)# show gslb cache 192.168.2.1
prefix length = 24, prefix = 192.168.2.0, region = N-AM
prefix source = static, client-query
www.brocade.com:
site = atlanta, ServerIronADX = slb-1(192.108.22.111), rtt = 5 (x100 usec)