Connected: An Internet Encyclopedia
2.4.1. RRset Exists (Value Independent)
Up:
Connected: An Internet Encyclopedia
Up:
Requests For Comments
Up:
RFC 2136
Up:
2. Update Message Format
Up:
2.4. Prerequisite Section
Prev: 2.4. Prerequisite Section
Next: 2.4.2. RRset Exists (Value Dependent)
2.4.1. RRset Exists (Value Independent)
2.4.1. RRset Exists (Value Independent)
At least one RR with a specified NAME and TYPE (in the zone and class
specified in the Zone Section) must exist.
For this prerequisite, a requestor adds to the section a single RR
whose NAME and TYPE are equal to that of the zone RRset whose
existence is required. RDLENGTH is zero and RDATA is therefore
empty. CLASS must be specified as ANY to differentiate this
condition from that of an actual RR whose RDLENGTH is naturally zero
(0) (e.g., NULL). TTL is specified as zero (0).
Next: 2.4.2. RRset Exists (Value Dependent)
Connected: An Internet Encyclopedia
2.4.1. RRset Exists (Value Independent)