Fix Readme
Abstract
HIPER (Doc Number=6669): High Impact / Highly Pervasive APAR IJ25390
Content
IJ25390 - Slow TCP performance with Virtual Ethernet Adapter and largesend packets
The Virtual Ethernet Adapter can cause a significant degradation in TCP performance for largesend packets.
This issue can be seen with VIOS (serving any AIX, IBMi, or Linux client LPAR) running the affected VIOS levels below.
It can also be seen with any AIX client LPAR running the affected AIX levels below (regardless of the VIOS level).
This issue only occurs when the client LPARS are configured for largesend traffic or VIOS is configured for largereceive traffic.
Affected VIOS/AIX Levels and Recommended Fixes
| Minimum Affected Level | Maximum Affected Level | Fixing Level | Interim Fix |
|---|---|---|---|
| VIOS 2.2.6.60 devices.vdevice.IBM.l-lan.rte 6.1.9.402 |
VIOS 2.2.6.61 devices.vdevice.IBM.l-lan.rte 6.1.9.402 |
VIOS 2.2.6.62 IJ25442 |
iFix |
| VIOS 3.1.1.20 devices.vdevice.IBM.l-lan.rte 7.2.4.1 |
VIOS 3.1.1.21 devices.vdevice.IBM.l-lan.rte 7.2.4.2 |
VIOS 3.1.1.22 IJ25390 |
iFix |
| AIX 7100-05-06-2015 devices.vdevice.IBM.l-lan.rte 7.1.5.33 |
AIX 7100-05-06-2016 devices.vdevice.IBM.l-lan.rte 7.1.5.33 |
AIX 7100-05-06-2027 IJ25443 |
iFix |
| AIX 7200-04-02-2015 devices.vdevice.IBM.l-lan.rte 7.2.4.1 |
AIX 7200-04-02-2016 devices.vdevice.IBM.l-lan.rte 7.2.4.2 |
AIX 7200-04-02-2027 IJ25390 |
iFix |
|
Note: Installation of these fixes requires a reboot. | |||
The table above describes which active levels are affected and where to obtain fixes.
Prior to the APAR Fix being available, an Interim Fix (iFix) is available for each affected level.
The available iFixes may only apply to the latest Service Packs. If a custom iFix is required please contact IBM Support.
The iFixes can be downloaded from the same location using ftp, http, or https.
| Doc number: 6669 | Published date: 20200613 |
Was this topic helpful?
Document Information
Modified date:
13 June 2020
UID
ibm16231442