Bug 171389
Summary: | slow network - tcp window size always too small | ||||||||
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Product: | Red Hat Enterprise Linux 3 | Reporter: | Nick Nauwelaerts <nick.nauwelaerts> | ||||||
Component: | kernel | Assignee: | David Miller <davem> | ||||||
Status: | CLOSED WONTFIX | QA Contact: | Brian Brock <bbrock> | ||||||
Severity: | medium | Docs Contact: | |||||||
Priority: | medium | ||||||||
Version: | 3.0 | CC: | david.bogen, djuran, petrides | ||||||
Target Milestone: | --- | ||||||||
Target Release: | --- | ||||||||
Hardware: | i386 | ||||||||
OS: | Linux | ||||||||
Whiteboard: | |||||||||
Fixed In Version: | Doc Type: | Bug Fix | |||||||
Doc Text: | Story Points: | --- | |||||||
Clone Of: | Environment: | ||||||||
Last Closed: | 2007-10-19 18:52:25 UTC | Type: | --- | ||||||
Regression: | --- | Mount Type: | --- | ||||||
Documentation: | --- | CRM: | |||||||
Verified Versions: | Category: | --- | |||||||
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
Cloudforms Team: | --- | Target Upstream Version: | |||||||
Embargoed: | |||||||||
Attachments: |
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Description
Nick Nauwelaerts
2005-10-21 12:57:24 UTC
Created attachment 120252 [details]
tcpdump example 1
This is an example tcpdump, it includes the first 10 packets of a connection.
The window size does not change over the course of the connection.
Created attachment 120253 [details]
tcpdump example 2
This is another example tcpdump, it includes the first 10 packets of a
connection. The window size does not change over the course of the connection.
Are there any updates on this issue? // nick We're seeing the same thing in the following kernels: 2.4.21-37.0.1.ELsmp 2.4.21-40.ELsmp No matter what bits are flipped, it seems almost impossible to get a wscale value of 5 or higher. RHELv3 always seems to advertise a wcale of 0 which limits the windows to smaller than 256K. This is a *real* problem for those of us that operate systems that communicate over high-bandwidth, high-latency links (think satellites). David Bogen david.bogen.edu This bug is filed against RHEL 3, which is in maintenance phase. During the maintenance phase, only security errata and select mission critical bug fixes will be released for enterprise products. Since this bug does not meet that criteria, it is now being closed. For more information of the RHEL errata support policy, please visit: http://www.redhat.com/security/updates/errata/ If you feel this bug is indeed mission critical, please contact your support representative. You may be asked to provide detailed information on how this bug is affecting you. |