3Com 3500 manual Modifies the maximum memory that Ospf can allocate

570CHAPTER 19: OPEN SHORTEST PATH FIRST (OSPF)

ip ospf partition modify

✓3500

✓9000

9400

3900

9300

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 - <maximum available memory>).

■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	Maximum memory size (in	■ 4096 to	1 (factory
partition	bytes) to allocate to OSPF	<maximum	default), or
maximum	system operations	available size>	current OSPF
size		■ 0 (to specify system	partition size
		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.)