Dell S3100 EMC Command Line Reference Guide for the Series 9.14.2.5 - Page 1022

Usage Information The higher this parameter is set, the faster OSPF converge takes place. NOTE: The faster the convergence, the more frequent the route calculations and updates. This behavior impacts CPU utilization and may impact adjacency stability in larger topologies. Generally, convergence level 1 meets most convergence requirements. Higher convergence levels should only be selected following consultation with Dell EMC Networking technical support. graceful-restart grace-period Specifies the time duration, in seconds, that the router's neighbors continue to advertise the router as fully adjacent regardless of the synchronization state during a graceful restart. NOTE: This command enables OSPFv2 graceful restart globally by setting the grace period (in seconds) that an OSPFv2 router's neighbors continues to advertise the router as adjacent during a graceful restart. Syntax Parameters graceful-restart grace-period seconds To disable the grace period, use the no graceful-restart grace-period command. seconds Time duration, in seconds, that specifies the duration of the restart process before OSPF terminates the process. The range is from 40 to 1800 seconds. Defaults Not Configured Command Modes ROUTER OSPF Command History This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide. Version Description 9.10(0.1) 9.10(0.0) 9.10(0.0) 9.10(0.0) 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.2(1.0) 9.0.2.0 8.3.19.0 8.3.11.1 8.3.7.0 7.8.1.0 7.5.1.0 pre- 6.1.1.1 Introduced on the S6010-ON and S4048T-ON. Introduced on the S3148. Introduced on the S3148. Introduced on the S6100-ON. Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Introduced on the Z9500. Introduced on the S6000. Introduced on the S4820T. Introduced on the Z9000. Introduced on the S4810. Introduced on the S-Series. Added support for Multi-Process OSPF. Introduced on the C-Series. Introduced on the E-Series. Usage Information The Helper mode is enabled by default on the device. To enable the restart mode also on the device, you must configure the grace period using this command. After you enable restart mode the router advertises the neighbor as fully adjacent during a restart. 1022 Open Shortest Path First (OSPFv2 and OSPFv3)