Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2
Fixed In:
13.0.0, 12.1.2
Opened: Sep 09, 2016 Severity: 3-Major Related Article:
K44812723
The BIG-IP system might fail to send RSTs, ICMP unreachable, or ICMP echo responses for some addresses. /var/log/ltm might contain messages similar to the following: -- Limiting icmp unreach response from 251 to 250 packets/sec. -- Limiting icmp ping response from 251 to 250 packets/sec. -- Limiting closed port RST response from 251 to 250 packets/sec.
Certain response messages from addresses in one or more traffic-groups (but not all) might be rate limited by the BIG-IP system even though the level of traffic has not exceeded the tm.maxrejectrate setting.
Certain traffic patterns to addresses in two or more different traffic-groups.
None known.
The rate limiting messages in the ltm log will now include the name of the traffic group that is being rate limited. Example old log message: warning tmm[6167]: 011e0001:4: Limiting icmp ping response from 251 to 250 packets/sec. Example new log message: warning tmm[19109]: 011e0001:4: Limiting icmp ping response from 251 to 250 packets/sec for traffic group /Common/traffic-group-1.
The rate limiting messages in the ltm log will now include the name of the traffic group that is being rate limited. Example old log message: warning tmm[6167]: 011e0001:4: Limiting icmp ping response from 251 to 250 packets/sec. Example new log message: warning tmm[19109]: 011e0001:4: Limiting icmp ping response from 251 to 250 packets/sec for traffic group /Common/traffic-group-1.