Bug ID 749785: nsm can become unresponsive when processing recursive routes

Last Modified: May 29, 2024

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

Known Affected Versions:
12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4

Fixed In:
15.0.0, 14.1.2.5, 13.1.3, 12.1.5.3

Opened: Nov 15, 2018

Severity: 3-Major

Symptoms

imish hangs, and the BIG-IP Network Services Module (nsm) daemon consuming 100% CPU.

Impact

Dynamic routing, and services using dynamic routes do not operate. nsm does not recover and must be restarted.

Conditions

-- Dynamic routing enabled -- Processing recursive routes from a BGP peer with different prefixlen values.

Workaround

None.

Fix Information

nsm now processes recursive route without issues.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips