Dell Force10 S4820T FTOS Command Reference Guide - Page 1092

www.dell.com | support.dell.com Usage Information 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 ( 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 flood-2328 is enabled, this command configures FTOS to flood LSAs on all interfaces. graceful-restart grace-period c e s 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. Syntax Parameters Defaults Command Modes Command History graceful-restart grace-period seconds To disable the grace period, enter no graceful-restart grace-period. seconds Time duration, in seconds, that specifies the duration of the restart process before OSPF terminates the process. Range: 40 to 1800 seconds Not Configured ROUTER OSPF Version 8.3.19.0 Version 8.3.7.0 Version 7.8.1.0 Version 7.5.1.0 pre-Version 6.1.1.1 Introduced on S4820T Introduced on S4810 Introduced for S-Series Introduced support for Multi-Process OSPF. Introduced on C-Series Introduced on E-Series 1092 | Open Shortest Path First (OSPFv2)