networking-cisco

ML2 Cisco Nexus MD: VLAN/trunk config not created on all switches

Bug #1512463 reported by Rich Curran
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
networking-cisco
Fix Committed
Undecided
Rich Curran
networking-cisco 2.0.0
Kilo
Fix Committed
Undecided
Rich Curran
networking-cisco 1.1.0
Liberty
Fix Committed
Undecided
Rich Curran
networking-cisco 2.0.0

Bug Description

In the following topology/configuration:
- two nexus switches
- three neutron-server controllers (HA)
- dhcp_agents_per_network=3
- two port-channels being configured per nexus switch

a race condition was observed that caused one switch missing a vlan global configuration and one of the port-channels not being trunked with the vlan. The 2nd switch was often not programmed at all.

This fix removes the code that attempts to verify (and then program) if a vlan/trunk interface was programmed on the switch.

Tags: ml2 nexus cisco
Rich Curran (rcurran)
Changed in networking-cisco:
assignee: nobody → Rich Curran (rcurran)
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix proposed to networking-cisco (master)

Fix proposed to branch: master
Review: https://review.openstack.org/241216

Changed in networking-cisco:
status: New → In Progress
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to networking-cisco (master)

Reviewed: https://review.openstack.org/241216
Committed: https://git.openstack.org/cgit/openstack/networking-cisco/commit/?id=8e7017c8ba6c0d5cc5ef6f250c4a572556fd70a4
Submitter: Jenkins
Branch: master

commit 8e7017c8ba6c0d5cc5ef6f250c4a572556fd70a4
Author: Rich Curran <email address hidden>
Date: Tue Nov 3 09:08:54 2015 -0500

    ML2 Cisco Nexus MD: VLAN/trunk config not created on all switches

    In the following topology/configuration:
    - two nexus switches
    - three neutron-server controllers (HA)
    - dhcp_agents_per_network=3
    - two port-channels being configured per nexus switch

    a race condition was observed that caused one switch missing a vlan global
    configuration and one of the port-channels not being trunked with the vlan.
    The 2nd switch was often not programmed at all.

    This fix removes the code that attempts to verify (and then program) if a
    vlan/trunk interface was programmed on the switch.

    Change-Id: I3bc5456282cda3c1916327ef876d2fcd3e3cbeb8
    Closes-Bug: #1512463

Changed in networking-cisco:
status: In Progress → Fix Committed
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix proposed to networking-cisco (stable/kilo)

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/241760

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Change abandoned on networking-cisco (stable/kilo)

Change abandoned by rcurran (<email address hidden>) on branch: stable/kilo
Review: https://review.openstack.org/241747
Reason: bad cherry-pick

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to networking-cisco (stable/kilo)

Reviewed: https://review.openstack.org/241760
Committed: https://git.openstack.org/cgit/openstack/networking-cisco/commit/?id=db24e3d3687c3dec84f39406fecf1635610251ff
Submitter: Jenkins
Branch: stable/kilo

commit db24e3d3687c3dec84f39406fecf1635610251ff
Author: Rich Curran <email address hidden>
Date: Tue Nov 3 09:08:54 2015 -0500

    ML2 Cisco Nexus MD: VLAN/trunk config not created on all switches

    In the following topology/configuration:
    - two nexus switches
    - three neutron-server controllers (HA)
    - dhcp_agents_per_network=3
    - two port-channels being configured per nexus switch

    a race condition was observed that caused one switch missing a vlan global
    configuration and one of the port-channels not being trunked with the vlan.
    The 2nd switch was often not programmed at all.

    This fix removes the code that attempts to verify (and then program) if a
    vlan/trunk interface was programmed on the switch.

    Change-Id: I3bc5456282cda3c1916327ef876d2fcd3e3cbeb8
    Closes-Bug: #1512463
    (cherry picked from commit 8e7017c8ba6c0d5cc5ef6f250c4a572556fd70a4)

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