Version Description
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the 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, Dell Networking OS 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 Dell Networking OS to
flood LSAs on all interfaces.
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.
S6000
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 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,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
1078
Open Shortest Path First (OSPFv2 and OSPFv3)
