Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 716

www.dell.com | support.dell.com Usage Information The higher this parameter is set, the faster OSPF converge takes place. Note that the faster the convergence, the more frequent the route calculations and updates. This will impact 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 Force10 technical support. flood-2328 c e s Enable RFC-2328 flooding behavior. Syntax flood-2328 To disable, use the no flood-2328 command. Defaults Disabled Command Modes ROUTER OSPF Command History Version 8.3.5.0 Version 7.8.1.0 Version 7.6.1.0 Version 7.5.1.0 Introduced on S55 Introduced support for Multi-Process OSPF. Introduced on S-Series Introduced on C-Series and E-Series 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 (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 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 graceful-restart grace-period seconds To disable the grace period, enter no graceful-restart grace-period. Parameters seconds Time duration, in seconds, that specifies the duration of the restart process before OSPF terminates the process. Range: 40 to 3000 seconds 716 | Open Shortest Path First (OSPFv2 and OSPFv3)