Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 203

Connecting Compression Network Modules
This chapter describes the compression network module for Cisco 3600 series routers and contains the
following sections:
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•
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This module provides hardware assistance to protocols that use compression and decompression,
reduces the load on the CPU caused by software compression, and improves router performance.
Tip To determine whether your router supports a specific network module, see
Compression Network Modules
The compression network module (NM-COMPR) does not provide network interfaces of its own, but
instead compresses and decompresses data passing through interfaces on other network modules or
WAN interface cards in the router. (See
Hardware compression is supported only over Point-to-Point Protocol (PPP) links. The compression
network module supports only the Stacker compression algorithm.
Cisco IOS Release 11.3 and later releases allow Frame Relay compression support using the FRF.9
compression algorithm.
Figure 14-1 Compression Network Module
COMPRESSION
OL-2485-20
Compression Network Modules, page 14-1
Interfaces Supported, page 14-2
Compression Network Module LEDs, page 14-2
C H A P T E R
Figure 14-1.)
EN
Cisco Network Modules Hardware Installation Guide
14
Table 1-6 on page 1-16.
14-1