OSPF flaps while diagnostic bundle is getting generated
search cancel

OSPF flaps while diagnostic bundle is getting generated


Article ID: 326454


Updated On:


VMware VMware SD-WAN by VeloCloud


When an edge diagnostic bundle is generated from the SASE Orchestrator, OSPF flaps leading to a network outage while OSPF reconverges.


VMware SD-WAN by VeloCloud


This is caused by known issue # 95850

A command triggered as part of the diagnostic bundle creation leads to a processing delay which causes OSPF hellos not to be processed and OSPF to flap.


This issue is fixed in SD-WAN Edge releases:

Release 4.5.2 (R452-20230628-GA) or later
Release (R5015-20230922-GA) or later
Release (R5200-20230530-GA) or later

For information on how to upgrade please see VMware SD-WAN Software Upgrade FAQs

To work around this issue, change the OSPF hello internal to 25 seconds to avoid the neighborship flap before generating a diagnostic bundle.

To change the OSPF hello interval follow these steps:
  1. In the SD-WAN Service of the Enterprise portal, click Configure > Edges. The Edges page displays the existing Edges.
  2. Click the link to an Edge or click the View link in the Device column of the Edge. The configuration options for the selected Edge are displayed in the Device tab.
  3. In the Connectivity category, expand Interfaces.
  4. Click the link to the interface configured with OSPF to edit the settings.
  5. Scroll down to the OSPF section, click on Advanced Settings and change the timers accordingly:

Additional Information

To be alerted when this article is updated, click Subscribe to Article in the Actions box.