Bug ID 1623533: Observing drop in traffic throughput with debug-sidecar inline tcpdump packet capture

Last Modified: Mar 19, 2025

Affected Product(s):
BIG_IP_NEXT(VE/HW) All(all modules)

Known Affected Versions:
20.2.1, 20.3.0

Opened: Aug 05, 2024

Severity: 3-Major

Symptoms

This could be observed with earlier release versions and might be limitation with existing design of tcpdump packet capture flow. no traffic throughput drop was observed when tcpdump captured to file.

Impact

Traffic throughput affected when admin/debug user capture packets inline using debug-sidecar tcpdump

Conditions

Send some huge traffic using ixia traffic generator with 10G once the traffic is stable , perform a tcpdump on the tmm debug sidecar container

Workaround

Traffic throughput drop not observed when tcpdump captured to file.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips