Lucent Technologies 9077 16S, 9077 04S, 9076 manual Upgrading system memory, Ram

Introduction to the SP Switch Router Adapter card

Upgrading system memory

Upgrading system memory

Figure 1-2shows the area of system memory (control board RAM) that can be expanded to meet site requirements. Memory upgrades are made in 128MB increments up to 512MB.

128MB RAM expandable to -->256MB		-->384MB	-->512MB
	RAM	RAM	RAM

-system software

-config files

	32MB	- GateD binary			468MB
	(fixed size)	- log files		340MB
Memory			212MB
size and
organization	84MB	- route tables
		- ATMP tunnels
	8-12MB	- kernel runs
	(fixed size)	- GateD runs

= expandable area of RAM

Figure 1-2. Expandable area of system memory

This chart provides general guidelines for memory required in different routing environments. Although the figures assume BGP peers with 50K route entries, additional memory may be required for higher average numbers of routes per BGP peer.

If the SP Switch Router is to support dynamic routing or ATMP home agents and mobile nodes, upgrade to at least 256MB. In environments where large numbers of routes are advertised, upgrade to 512MB.

Customer	Amount of	Space for	Route	Route	Typical
profile	control	dynamic	entries	entries in	numbe
	board	routing,	on	dynamic	r of
	memory	ATMP	media	routing	peer
	needed	tables	card	database	sessions
Static routing:	128MB	84MB	150K	Typical	0
(in high-performance				number:
environment)				35,800
Small POP	256MB	212MB	150K	Typical	3
				number:
				199,000
Medium POP /	384MB	340MB	150K	Typical	9
ISP backbone				number:
				362,000
Large POP /	512MB	468MB	150K	Typical	12
Exchange point /				number:
Route reflection server				521,000

SP Switch Router Adapter Guide - 1.4 Update 2 1-5