Traffic controls limit bandwidth when infra consolidated with mgmt
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
StarlingX |
Fix Released
|
High
|
Steven Webster |
Bug Description
Brief Description
-----------------
On systems configured with a 10G mgmt network and an intrastructure network configured as a vlan, traffic controls is limiting the bandwidth on the link. This can cause live migrationsfor large/busy VMs to fail intermittently due to reduced infrastructure network bandwidth
Severity
--------
Major
Steps to Reproduce
------------------
On system with a 10G mgmt network and the infra network defined as a vlan on top of the mgmt interface, run the iperf tool on the infra interface to determine the link bandwidth.
Expected Behavior
------------------
iperf should report around 1G/s bandwidth
Actual Behavior
----------------
iperf is reporting around 236MB/s bandwidth
Reproducibility
---------------
100% Reproducible in this configuration.
Note: The bandwidth is as expected when testing with a dedicated (non-vlan) infra interface
System Configuration
-------
Multi-node system with a 10G mgmt network and the infra network defined as a vlan on top of the mgmt interface
Branch/Pull Time/Commit
-------
any
Timestamp/Logs
--------------
Not Required. Issue is reproducible.
summary: |
- Intermittent live migration failures due to reduced infrastructure - network bandwidth + Traffic controls limit bandwidth when infra consolidated with mgmt |
Changed in starlingx: | |
assignee: | nobody → Steven Webster (swebster-wr) |
status: | New → Triaged |
importance: | Undecided → High |
tags: | added: stx.2019.03 stx.networking |
tags: |
added: stx.2019.05 removed: stx.2019.03 |
tags: |
added: stx.2.0 removed: stx.2019.05 |
Fix proposed to branch: master /review. openstack. org/623571
Review: https:/