Command Line Reference Guide

fast-convergence
This command sets the minimum LSA origination and arrival times to zero (0), allowing more rapid route computation so
that convergence takes less time.
S5000
Syntax
fast-convergence {number}
To cancel fast-convergence, use the no fast convergence command.
Parameters
number Enter the convergence level desired. The higher this parameter is set,
the faster OSPF converge takes place. The range is 1 to 4.
Defaults none.
Command Modes ROUTER OSPF
Command History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
The higher this parameter is set, the faster OSPF converge takes place.
NOTE: The faster the convergence, the more frequent the route calculations and updates.
This impacts 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 Networking technical support.
flood-2328
Enable RFC-2328 flooding behavior.
S5000
Syntax
flood-2328
To disable, use the no flood-2328 command.
Defaults Disabled.
Command Modes ROUTER OSPF
Command History
Version 9.0(1.3) Introduced on the S5000.
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
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