Brocade Virtual ADX Global Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 118)

108 Brocade Virtual ADX Global Server Load Balancing Guide
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Displaying GSLB information
1
Displaying real server information
Generally, remote ADX devices in a GSLB configuration are themselves configured with real servers
and virtual servers. The real servers are the actual file servers for which the remote ADX device
provides load balancing. The virtual servers are the logical IP addresses that are published instead
of the real server IP addresses.
The GSLB protocol allows you to query the site ADX devices for configuration information as well as
the session and CPU information used by the GSLB policy. You can view detailed configuration
information and statistics for the site ADX device, from the GSLB management console. You can
display the following information:
• Real server configuration
• Virtual server configuration
• Port binding information (for the bindings between TCP/UDP ports on the real servers and the
virtual server that represents the real servers)
• Session statistics for sessions between clients and the real servers
Virtual IPs The virtual IP addresses (VIPs) configured on the ADX device.
This information is reported by the site ADX device.
The letter in parentheses at the end of each address indicates whether
the ADX device is an active or standby ADX device for that address. The
letter can be A (active) or S (standby). Unless the ADX device is
configured along with a partner ADX device for Symmetric Server Load
Balancing, the value is always A.
If a number appears following the A or S, a host range (the unlimited VIP
feature) is configured on the VIP. The number indicates the number of
hosts in the host range.
NOTE: The GSLB ADX device does not necessarily provide global SLB for
all the VIPs configured on the site ADX devices. The GSLB
provides global SLB only for the VIPs that correspond to the DNS
zone names you configure the GSLB ADX device to load balance.
Connection Load The average load at each connection-load sampling interval in the most
recent set of sample intervals.
In the example above, the connection load metric is configured to use six
samples, at 5-second intervals. The sampling intervals and the average
new-connection load at each interval are shown. On this site ADX device,
the average new-connection load for the last five seconds is 36, the
average new-connection load for the last 10 seconds is 34, the average
new-connection load for the last 15 seconds is 32, the average
new-connection load for the last 20 seconds is 31, and so on. Any time
you enter the command for this site ADX device, the average load for the
last 30 seconds is shown.
TABLE 7 Global SLB site information (Continued)
Field Description