The fifth parameter in the 'configure ospf vlan timer' command should be positive (the template value is zero) on SW release 33.1.1.31 30-timers: * [Test topology](https://github.com/ipspace/netlab/blob/dev/tests/integration/ospf/ospfv2/30-timers.yml) * [Test results](https://tests.netlab.tools/exos/libvirt/ospf/ospfv2/30-timers.yml-config.log)