Bug ID 512320: Diameter: Unexpected retransmission on handshake failure

Last Modified: Oct 16, 2023

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

Known Affected Versions:
11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 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

Opened: Mar 13, 2015

Severity: 3-Major

Related Article: K17215

Symptoms

Diameter messages can be retransmitted if the serverside connection experiences a handshake failure and the virtual has an iRule with a LB_FAILED/LB::reselect combination. This occurs because both the clientside diameter filter and mlb proxy attempt to retransmit the same message.

Impact

Diameter messages might be retransmitted.

Conditions

This occurs under the following conditions: 1. Retransmission is turned on. 2. Handshake fails. 3. LB_FAILED/LB::reselect iRule is used.

Workaround

Turn off retransmission.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips