Bug ID 763093: LRO packets are not taken into account for ifc_stats (VLAN stats)

Last Modified: Jun 13, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.4, 14.1.0.5, 14.1.0.6, 15.0.0

Opened: Mar 21, 2019
Severity: 3-Major

Symptoms

The ifc_stats do not correctly reflect the number of incoming octets/packets. There is a discrepancy between octets/packets in/out in the ifc_stats table, which tracks per-VLAN stats.

Impact

ifc_stats are incorrect for incoming octets and packets.

Conditions

LRO is enabled and used for incoming packets.

Workaround

Disable LRO using the following command: tmsh modify sys db tm.tcplargereceiveoffload value disable After modifying that variable, you must restart tmm for it to take effect (traffic disrupted while tmm restarts): bigstart restart tmm

Fix Information

None

Behavior Change