Dell Force10 Z9000 FTOS Command Line Reference Guide for the Z9000 System FTOS - Page 1052

Command History Usage Information Version 8.3.11.1 Version 8.3.7.0 Version 7.8.1.0 Version 7.6.1.0 Version 7.5.1.0 Introduced on the Z9000. Introduced on the S4810. Added support for Multi-Process OSPF. Introduced on the S-Series. Introduced on the C-Series and E-Series. In OSPF, flooding is the most resource-consuming task. The flooding algorithm, described in RFC-2328, requires that OSPF flood LSAs (Link State Advertisements) on all interfaces, as governed by LSA's flooding scope (see Section 13 of the RFC). When multiple direct links connect two routers, the RFC-2328 flooding algorithm generates significant redundant information across all links. By default, FTOS implements an enhanced flooding procedure that dynamically and intelligently determines when to optimize flooding. Whenever possible, the OSPF task attempts to reduce flooding overhead by selectively flooding on a subset of the interfaces between two routers. When you enable flood-2328, this command configures FTOS to flood LSAs on all interfaces. graceful-restart grace-period Specifies the time duration, in seconds, that the router's neighbors will continue to advertise the router as fully adjacent regardless of the synchronization state during a graceful restart. C-Series, E-Series, S-Series, Z-Series, S4810 Syntax graceful-restart grace-period seconds To disable the grace period, use the no graceful-restart grace-period command. Parameters seconds Time duration, in seconds, that specifies the duration of the restart process before OSPF terminates the process. The range is 40 to 1800 seconds. Defaults Command Modes Command History Not Configured ROUTER OSPF Version 8.3.11.1 Version 8.3.7.0 Version 7.8.1.0 Version 7.5.1.0 pre-Version 6.1.1.1 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. 1052