HP PROCURVE 2520 Management And Configuration Manual page 506

Troubleshooting
DNS Resolver
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Example. Suppose the switch is configured with the domain suffix
mygroup.procurve.net and the IP address for an accessible DNS server. If an
operator wants to use the switch to ping a target host in this domain by using
the DNS name "leader" (assigned by a DNS server to an IP address used in
that domain), then the operator can use either of the following commands:
ProCurve# ping leader
10.28.229.220 is alive, time = 1 ms
ProCurve# ping leader.mygroup.procurve.net
10.28.229.220 is alive, time = 1 ms
Figure C-27. Example of Using Either a Host Name or a Fully Qualified Domain Name
In the proceeding example, if the DNS server's IP address is configured on the
switch, but a domain suffix is either not configured or is configured for a
different domain than the target host, then the fully qualified domain name
must be used.
C-72
When the switch is configured with both of the following:
• the IP address of a DNS server available to the switch
• the domain suffix of a domain available to the configured DNS
server
then:
• A DNS-compatible command that includes the host name of a
device in the same domain as the configured domain suffix can
reach that device.
• A DNS-compatible command that includes a fully qualified
domain name can reach a device in any domain that is available
to the configured DNS server.
Host Name for the Desired Host
Ping Response
Fully Qualified Domain Name for the
Desired Host
Ping Response