Table of Contents
Advertisement
1
Global Server Load Balancing overview
•
•
•
•
•
•
NOTE
To display the list when configuring zone information, enter the host-info <host-name> ? command,
where <host-name> is a string specifying a host name.
For other applications (applications not listed above), the ServerIron ADX does not perform a
Layer 7 heath check but still performs a Layer 3 or Layer 4 TCP or UDP health check.
You can customize the HTTP health check on an individual host basis by changing the URL string
the ServerIron ADX requests in the health check and the list of HTTP status codes the ServerIron
ADX accepts as valid responses to the health check.
GSLB example
Figure 1
ServerIron ADX configured for global SLB) is connected to the authoritative DNS server for a
specific domain. (You can configure the ServerIron ADX for more than one domain; this example
uses only one for simplicity.) The authoritative DNS server for brocade.com is known to other
devices as 209.157.23.87. This is a VIP configured on the GSLB ServerIron ADX for the DNS server.
FIGURE 1
4
IMAP4: the well-known name for port 143
LDAP: the well-known name for port 389
NNTP: the well-known name for port 119
POP3: the well-known name for port 110
SMTP: the well-known name for port 25
TELNET: the well-known name for port 23
shows an example of a GSLB configuration. In this example, the GSLB ServerIron ADX (a
Global Server Load Balancing configuration
ServerIron ADX Global Server Load Balancing Guide
53-1002437-01
Advertisement
Table of Contents
