Cisco Cisco IOS Software Releases 12.2 B

In most NRP-2 configurations, 256 MB DRAM is adequate for up to 6500 sessions. More sessions 
require 512 MB DRAM.

When running multicast in an NRP-2 configuration, the NRP-2 should have 512 MB of memory.

In most NRP-1 configurations, 64 MB DRAM is adequate for up to 750 sessions. More sessions 
require 128 MB DRAM. Using the NRP-1, for an upgrade from an earlier release to Cisco IOS 
Release 12.2(2)B1, 128 MB DRAM is recommended.

Cisco IOS Release 12.2(2)B1 supports the Cisco 6400 NRP-1, NRP-2, NRP-2SV, NSP, and NSP-S3B 
modules. The NSP-S3B, otherwise identical to the NSP, is required to use the Building Integrated Timing 
Supply (BITS) Network Clocking software feature.

For NRP-Service Selection Gateway (SSG) users, Cisco IOS Release 12.2(2)B1 works with the 
Cisco Service Selection Dashboard (SSD) version 2.5(1) and 3.0(1) and Subscriber Edge Services 
Manager (SESM) 3.1(1).

NRP-1

IOS NRP-1 BASE
IOS NRP-1 MULTIDOMAIN
IOS NRP-1 WEB 
SELECTION

c6400r-g4p5-mz

64 MB for up to 750 sessions

128 MB for over 750 sessions

8 MB

NSP

c6400s-wp-mz
c6400s-html.tar

The standard 64 MB DRAM 
memory configuration supports 
up to 12K virtual circuits (VCs).

128 MB DRAM is recommended 
for supporting up to 32K VCs, or 
for using ATM RMON or ATM 
Accounting.

128 MB DRAM is also 
recommended for an upgrade 
from an earlier release to 
Cisco IOS Release 12.1(5)DB.

20 MB or 32 MB 

1

350 MB 
recommended for 
NRP-2 
configurations

1. The 20 MB Flash Disk is no longer available; the 32 MB Flash Disk is now the default Flash configuration.