Brocade Virtual ADX Global Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 143)

Brocade Virtual ADX Global Server Load Balancing Guide 133
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Basic GSLB for IPv6 configuration
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NOTE
Although DNS override is a global parameter. The response to the client contains all the domain IPs
configured for the domain. You can enable the active-only option in the policy, in which case the reply
contains only the active addresses. Refer to
“Configuring an active-only policy” on page 161.
To display the DNS override state, enter the show gslb policy command. The state is shown in the
DNS override field. Refer to
“Displaying the default GSLB policy” on page 164 for more information.
NOTE
Both DNS cache-proxy and DNS override must be enabled to configure GSLB for IPv6.
Configuring zones
You must specify the DNS zone name and the host information (applications) within each zone for
which you want the GSLB Brocade Virtual ADX to provide global server load balancing. There are no
defaults for these parameters.
To configure a zone, enter commands such as the following:
Virtual ADX(config)#gslb dns zone-name brocade.com
Virtual ADX(config-gslb-dns-brocade.com)#host-info www http
Virtual ADX(config-gslb-dns-brocade.com)#host-info ftp ftp
This example adds the zone brocade.com and two host names within that zone: www and ftp. The
GSLB Brocade Virtual ADX will provide global SLB for these two hosts within the zone.
Syntax: [no] gslb dns zone-name name
The name parameter specifies the DNS zone name. If you delete a DNS zone (by entering no gslb
dns zone-name name), the zone and all the host names you associated with the zone are deleted.
Syntax: [no] host-info host-name host-application | TCP/UDP-port-num
The host-name parameter specifies the host name. You do not need to enter the entire
(fully-qualified) host name. Enter only the host portion of the name. For example, if the fully
qualified host name is www.brocade.com, do not enter the entire name. Enter only www. The rest of
the name is already specified by the gslb dns zone-name command. You can enter a name up to 32
characters long.
The host-application parameter specifies the host application for which you want the GSLB
Brocade Virtual ADX to provide global SLB. You can specify one of the following:
• ftp: the well-known name for port 21. (Ports 20 and 21 both are FTP ports but on the Brocade
Virtual ADX, the name “FTP” corresponds to port 21.)
• tftp: the well-known name for port 69
• http: the well-known name for port 80
• 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