Cisco Catalyst 4000 매뉴얼 - 페이지 13

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Cisco Catalyst 4000 매뉴얼
Note
Cisco 4000 Series," on the Web at http://www.cisco.com. This bulletin contains
information such as minimum memory requirements for each Cisco IOS image, current
shared memory requirements, and sample configurations.
Main Memory Requirements
The amount of main memory required by a Cisco 4000 series router is affected by the size
of the network and by the access list configurations. However, it is difficult to quantify the
exact main memory requirements based only on network size. Use the following guidelines
to determine approximate main memory requirements.
Note
memory options, consider installing the next larger memory option to allow for network
growth.
Main memory requirement guidelines for Cisco 4000 series routers are as follows:
•
The 4 MB of main memory standard in the Cisco 4000-M will only suffice on routers
with knowledge of very small networks and which run very few protocols.
•
The 8 MB of main memory standard in the Cisco 4500-M and the 16 MB of main
memory standard in the Cisco 4700-M generally suffices on routers running Cisco IOS
Release 10.2.
•
16 MB of main memory, optional in the Cisco 4500-M and standard in the Cisco
4700-M, generally suffices on routers using Cisco IOS Release 10.3 or later.
•
The 64 MB main memory option for the Cisco 4700-M is recommended for routers
using Border Gateway Protocol (BGP).
For more information, see product bulletin number 419, "Memory Options for
If your memory requirements fall near the upper end of one of the available main
Overview of the Cisco 4000 Series Routers 1-13
Memory Systems