Last Modified: Jan 07, 2026
Affected Product(s):
BIG-IP GTM
Fixed In:
11.6.0
Opened: Nov 18, 2013 Severity: 3-Major Related Article:
K15072
The GTM global setting "cache-ldns-servers" can erroneously be set to "no" when a Wide IP is configured with "persistence enabled."
Persistence will not work correctly if "cache-ldns-servers" is turned off.
The GTM global setting "cache-ldns-servers" can erroneously be set to "no" when a Wide IP is configured with "persistence enabled."
Set the GTM global setting "cache-ldns-servers" to "yes" if any Wide IPs have persistence enabled. This is only necessary if the cache is turned off after persistence is enabled as enabling persistence automatically turns the cache on.
The BIG-IP GTM Cache Local DNS Servers global variable (cache-ldns-servers) is no longer erroneously disabled when persistence is enabled for a wide IP.