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Ip ospf partition modify – 3Com 3500 User Manual

Page 570

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570

C

HAPTER

19: O

PEN

S

HORTEST

P

ATH

F

IRST

(OSPF)

ip ospf partition

3500

9000

9400

3900
9300

modify

For CoreBuilder 9000: Applies to Layer 3 switching modules only.

Modifies the maximum memory that OSPF can allocate.

Valid Minimum Abbreviation

ip o pa m

Important Considerations

There are three choices for memory allocation:

Have the system intelligently determine the maximum OSPF
memory partition size (partition size =

1

). This is the default.

Have OSPF be part of system memory, growing as needed and
without limit (partition size =

0

).

Configure the maximum OSPF memory partition size manually
(partition size =

4096

-

).

You typically do not have to modify the OSPF memory allocation.
However, if the softRestarts statistic shown by the

ip ospf

statistics

option begins to climb, it means that OSPF is thrashing

for memory and you must increase the maximum memory.

For a complete description of OSPF memory allocation, see the “OSPF
Memory Partition” section in the OSPF chapter of the
Implementation
Guide.

The partition size option that you enter takes effect after a system
reboot.

Options

Prompt

Description

Possible Values

[Default]

New
partition
maximum
size

Maximum memory size (in
bytes) to allocate to OSPF
system operations

4096 to
available size>

0 (to specify system
memory partition)

1 (to specify a size
based on amount
of memory and the
maximum routing
table size. On
extended memory
systems, this is
4,200,000.)

1 (factory
default), or
current OSPF
partition size