Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3
Opened: Nov 29, 2017 Severity: 3-Major
FQDN pool member monitor status is not updated and monitor probes are not sent to the FQDN pool member in the case where: FQDN-configured pools are populated with an initial set of nodes returned from a DNS query, and a subsequent DNS response includes a greater number of nodes that include the originally returned node-set. For example, if an initial DNS response populates an FQDN-configured pool with one node, and a subsequent DNS response returns two nodes (including the first node), then monitor probes may fail to be sent to the second FQDN-configured pool member.
Monitor probes may fail to be sent to the second FQDN-configured pool member. Incorrect FQDN pool member status.
-- The configuration has an FQDN-configured pool. -- The DNS server successfully returns one-or-more nodes. -- The DNS server later returns a greater number of nodes, including those nodes previously returned.
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