Bug ID 935793: With mirroring enabled on a SIP virtual server, connections on the standby are reset with MBLB internal error (Routing problem)

Last Modified: Jan 20, 2023

Bug Tracker

Affected Product:  See more info
BIG-IP Install/Upgrade, LTM(all modules)

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3

Opened: Aug 12, 2020
Severity: 3-Major

Symptoms

When a virtual server with a SIP profile has mirroring enabled, connections on the standby unit will be removed shortly after being created. If tm.rstcause.log is enabled the reset cause message appears similar to the following: -- err tmm1[18383]: 01230140:3: RST sent from 10.2.207.208:5080 to 10.2.207.201:31597, [0x2c1c820:1673] MBLB internal error (Routing problem). -- err tmm1[18383]: 01230140:3: RST sent from 10.2.207.209:51051 to 10.2.207.202:5080, [0x2c1c820:931] MBLB internal error.

Impact

Mirrored connections on the standby unit are removed.

Conditions

-- BIG-IP Virtual Edition (VE) running on 2000/4000 platforms using RSS hash. -- Platforms with more than 1 tmm.

Workaround

-- On BIG-IP VE, add the following to tmm_init.tcl on both units and restart tmm: ndal ignore_hw_dag yes

Fix Information

None

Behavior Change