Bug ID 589379: ZebOS adds and deletes an extraneous LSA after deleting a route that matches a summary suppression route.

Last Modified: Oct 16, 2023

Affected Product(s):
BIG-IP All(all modules)

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2

Fixed In:
13.0.0, 12.1.2 HF1, 11.6.5.1, 11.5.4 HF3

Opened: Apr 25, 2016

Severity: 4-Minor

Related Article: K20937139

Symptoms

In a configuration with a summary route that is added to ZebOS and configured with 'not-advertise', when deleting the exactly matching route, ospfd sends LSA route with age 1, then immediately sends update with age 3600.

Impact

No functional impact. The extraneous LSA is immediately aged out.

Conditions

OSPF using route health injection for default route.

Workaround

Configure a static default route in imish instead of using RHI for the default route.

Fix Information

ZebOS no longer adds and deletes an extraneous LSA after deleting a route that matches a summary suppression route.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips