Flood-2328; Graceful-Restart Grace-Period - Dell Force10 S4810P Reference Manual

Generally, convergence level 1 meets most convergence requirements. Higher convergence
levels should only be selected following consultation with Dell Force10 technical support.

flood-2328

Enable RFC-2328 flooding behavior.
C-Series, E-Series, S-Series, Z-Series, S4810
Syntax flood-2328
To disable, use the no flood-2328 command.
Defaults Disabled.
Command Modes ROUTER OSPF
Command History
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
Usage
In OSPF, flooding is the most resource-consuming task. The flooding algorithm, described in
Information
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
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.
Time duration, in seconds, that specifies the duration of the restart
process before OSPF terminates the process. The range is 40 to 1800
seconds.
1159