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

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
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, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Opened: Oct 09, 2019
Severity: 3-Major

Symptoms

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'.

Impact

BGP logs do not contain helpful diagnostic information.

Conditions

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.

Workaround

None.

Fix Information

None

Behavior Change