Bug ID 637069: BIG-IP unstable when SCTP tx_chunks and rx_chunks configuration values are set incorrectly

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP TMOS(all modules)

Known Affected Versions:
11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0

Opened: Jan 05, 2017

Severity: 5-Cosmetic

Related Article: K85255027

Symptoms

The BIG-IP crashes repeatedly when attempting to establish an SCTP association.

Impact

Traffic processing will be disrupted as the BIG-IP restarts, and the SCTP virtual server may be unusable for the entire time that the profile misconfiguration is in place.

Conditions

When the values 'tx_chunks' or 'rx_chunks' in an SCTP profile are set to an integer multiple of 65,536, the BIG-IP will crash during traffic processing.

Workaround

Set the tx_chunks and rx_chunks values in the SCTP profile to no more than 65,535 and no less than 1.

Fix Information

Validation has been added so SCTP tx_chunks and rx_chunks configuration values cannot be set to more than 65,535 or less than 1.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips