Bug ID 1584469: BX520 TCPDUMP throughput improvement

Last Modified: Jun 27, 2025

Affected Product(s):
F5OS Velos(all modules)

Fixed In:
F5OS-C 1.8.1

Opened: May 06, 2024

Severity: 3-Major

Symptoms

The BX520 blades had more throughput than the BX110, but the TCPDUMP utility could not keep up with the amount of TCPDUMP traffic the smaller blade could do.

Impact

Slower TCPDUMP from dropping TCPDUMP packets when customer uses system diagnostic TCPDUMP in the confD cli.

Conditions

BX520 TCPDUMP throughput was quite low compared to BX110 blades, about half of BX110 when it should be double to 3x that of BX110 since BX520 has 4x throughput as BX110.

Workaround

None

Fix Information

Now the line-dma-agent is servicing the DMs on NSO/TAM fast enough for the TCPDUMP higher-throughput traffic on BX520.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips