Disabling and re-enabling OSPFv2 event logging

1. Enter the configure terminal command to access global configuration mode.
   

   device# configure terminal

2. Enter the router ospf command to enter OSPF router configuration mode and enable OSPFv2 globally.
   

   device(config)# router ospf

3. Enter the no log all command to disable the logging of all OSPFv2 events.
   

   device(config-router-ospf-vrf-default-vrf)# no log all

The following example re-enables the logging of all OSPFv2 events.

device# configure terminal
device(config)# router ospf 
device(config-router-ospf-vrf-default-vrf)# log all