Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4
Fixed In:
11.5.5
Opened: Aug 16, 2016 Severity: 3-Major
On a BIG-IP system belonging to a Sync or Sync-Failover Device Group, you encounter intermittent Device Group errors during normal operation. This can include the device status flipping from Offline to In Sync, or actual sync errors on a manual or automatic config sync. You may also see iQuery errors in the logs of BIG-IP GTM systems.
Intermittent sync status or occasional config sync failures.
This issue is known to occur on BIG-IP systems belonging to a Sync or Sync-Failover Device Group where the config sync VLAN cmp-hash mode is set to something other than default.
Ensure that the config sync IP is on a VLAN that has the cmp-hash mode set to default.
None