Cisco TelePresence Administrator's Manual page 300

For SRV record type lookups, multiple DNS queries are performed as follows:
An SRV query is made for each of the following _service._protocol combinations:
n
_h323ls._udp.<domain>
l
_h323cs._tcp.<domain>
l
_sips._tcp.<domain>
l
_sip._tcp.<domain>
l
_sip._udp.<domain>
l
In each case, as for all other query types, either one or two queries may be performed for a <domain> of
either Host and/or Host.<system_domain>.
Results
A new section will appear showing the results of all of the queries. If successful, it will display the following
information:
Query The type of query that was sent by the VCS.
type
Name The hostname contained in the response to the query.
TTL The length of time (in seconds) that the results of this query will be cached by the VCS.
Class IN (internet) indicates that the response was a DNS record involving an internet hostname, server or
IP address.
Type The record type contained in the response to the query.
Response The content of the record received in response to the query for this Name and Type.
Example
If the system's Domain name is set to example.com, a lookup for a Host of host_name with a Query
type of All would result in the following DNS queries:
A host_name.example.com
AAAA host_name.example.com
NAPTR host_name.example.com
SRV host_name.example.com
SRV _h323ls._udp.host_name.example.com
SRV _h323cs._tcp.host_name.example.com
SRV _sips._tcp.host_name.example.com
SRV _sip._tcp.host_name.example.com
SRV _sip._udp.host_name.example.com
In each of these cases, if the query is unsuccessful an additional query would be made for host_name only.
Cisco VCS Administrator Guide (X7.1)
Maintenance
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