Reviewed: https://review.opendev.org/c/openstack/neutron/+/948456
Committed:
https://opendev.org/openstack/neutron/commit/2c35dd53f209f60ca60b8a2c077d97bb0c4c7d9e
Submitter: "Zuul (22348)"
Branch: master
commit 2c35dd53f209f60ca60b8a2c077d97bb0c4c7d9e
Author: Rodolfo Alonso Hernandez <ralon...@redhat.com>
Date: Tue Apr 29 15:55:34 2025 +0000
[OVN] Only update the MTU of the router GW LRPs
When a new internal network is added to a router, the GW LRP (or LRPs)
MTU value is updated, matching the lowest MTU of all networks connected
to this router.
This patch is updating the method ``set_gateway_mtu`` to be called only
for a specific router and update only the router GW LRPs.
Closes-Bug: #2109388
Change-Id: Ic7807a440b479c0fa08c6d13813cd2a81eff9bb1
** Changed in: neutron
Status: In Progress => Fix Released
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/2109388
Title:
[OVN] Slow "router add interface" when MTU differs and
ovn_emit_need_to_frag=true
Status in neutron:
Fix Released
Bug description:
We currently have an external provider network A (VLAN) MTU 1500 with
about 100 routers using that external network A.
- case 1: I set ovn_emit_need_to_frag=False, then I perform an action
to add 1 router interface with network type geneve MTU 6000 with
completion time ~6 seconds
- case 2: I set ovn_emit_need_to_frag=true, then I perform an action
to add 1 router interface with network type geneve MTU 6000 with
completion time ~50 seconds
After I found out that neutron has proceeded to update the MTU for all
LRPs belonging to the router using external network A, not just the
router that I performed the action on, which resulted in a very long
time to add the router interface.
Environment:
OVN: 24.09.0
OPENSTACK: 2024.2
OS: UBUNTU 24.04
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/2109388/+subscriptions
--
Mailing list: https://launchpad.net/~yahoo-eng-team
Post to : yahoo-eng-team@lists.launchpad.net
Unsubscribe : https://launchpad.net/~yahoo-eng-team
More help : https://help.launchpad.net/ListHelp
