Bug 1369529 - file downloads in ipxe environment is very slow for 40Gb Cisco VIC 1385
Summary: file downloads in ipxe environment is very slow for 40Gb Cisco VIC 1385
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: ipxe
Version: 7.2
Hardware: All
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Neil Horman
QA Contact: Ma Yuying
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-08-23 16:37 UTC by Jaison Raju
Modified: 2019-12-16 06:28 UTC (History)
5 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2016-11-23 16:55:57 UTC
Target Upstream Version:
Embargoed:

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Description Jaison Raju 2016-08-23 16:37:59 UTC 
Description of problem:
While OpenStack Platform Director deploys or introspects overcloud node ,
the nodes pxe boot to get kernel & ramdisk but it take over 5mins to download these images that are togather less than 1.5GB .
The server uses Cisco UCS Virtual Interface Card 1385 .
This server is in spine leaf network architecture .

This issue is not seen while RHEL is running on the systems .


Version-Release number of selected component (if applicable):
* Cisco UCS Virtual Interface Card 1385 - http://www.cisco.com/c/en/us/products/collateral/interfaces-modules/unified-computing-system-adapters/datasheet-c78-734727.html
* Spine N9K-C9336PQ - 160Gb backbone
* Leaf N9K-C9332PQ - 40Gb

How reproducible:
Always on customer environment.

Steps to Reproduce:
1.
2.
3.

Actual results:
ramdisk & kernel takes long time to download .

Expected results:
ramdisk & kernel download should take less that 2-3 sec , once started .

Additional info:
Comment 7 Neil Horman 2016-09-23 14:00:51 UTC 
Can you please tcpdump this connection from the pxe server so that we can get an idea what the traffic pattern looks like?
Comment 8 Neil Horman 2016-10-28 16:59:05 UTC 
ping, any update here?
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