Symptoms
Proxied ICMP traffic or ICMP monitors fail when tenant is running BIG-IP v17.1.2 or above.
Traffic failures are due to RR_DAG being incorrectly configured for certain packets.
Impact
Dropped packets in ICMP traffic flow through virtual servers
ICMP monitors failing.
The problem is not ICMP specific, and may also impact TCP traffic.
Conditions
Affects BIG-IP v17.1.2 or above when the host is running F5OS-A prior to F5OS-A 1.8.0 or F5OS-C prior to F5OS-C 1.8.0 on the following platforms:
- VELOS
- r5000, r10000, or r12000-series appliances
The default setting is VLAN not enabled for DAG Round Robin (RR_DAG).
Workaround
Upgrade F5OS to version 1.8.0 or higher.
