Cisco Systems manual Cisco 4000 Series Installation Guide

Memory Systems

Table 1-4	Cisco 4000-M Shared Memory Requirements
		Per-Module Shared Memory
Network Processor Module		Requirements
Single-port Ethernet		0.1 MB
Dual-port Ethernet and dual-port		0.2 MB
serial
Dual-port Token Ring, four-port		0.4 MB
serial, and G.703/G.704 serial
Eight-port BRI, CT1/PRI, and		1.0 MB
CE1/PRI
FDDI		2.0 MB
Table 1-5	Cisco 4500-M and Cisco 4700-M Shared Memory Requirements
			Per-Module Shared
Network Processor Module			Memory Requirements
Dual-port Ethernet and dual-port serial			0.4 MB
Single-port Fast Ethernet			1.7 MB
Dual-port Token Ring, four-port serial, and G.703/G.704 serial			0.6 MB
Six-port Ethernet, Eight-port BRI, CT1/PRI, and CE1/PRI			1.2 MB
ATM and one FDDI1			2.0 MB
Two FDDI2			3.0 MB
Dual-port high-speed synchronous serial and 16-port			0.6 MB
low-speed synchronous serial
HSSI			1.0 MB

1.FDDI modules are an exception in that two FDDI modules do not require double the shared memory of one FDDI module.

2.FDDI modules are an exception in that two FDDI modules do not require double the shared memory of one FDDI module.

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