Bug ID 836137: When BGP recursive nexthop is down, network is down, logs show Type: 0 messages without nexthop.

Last Modified: Nov 07, 2022

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6

Opened: Oct 09, 2019

Severity: 3-Major


While BGP is configured to use recursive routes and OSPF is used to provide a route to the recursive routes, you see repeated messages 'Type: 0'.


BGP logs do not contain helpful diagnostic information.


Due to network unreachable issue, ZebOS is shown all type :0 message. 1. BGP recursive routes are configured. 2. OSPF is configured to provide routing to the recursive routes. 3. OSPF flaps, or the network connection to the next hop is lost somehow.



Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips