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The Compression Service Adapter (CSA) provides high performance, hardware-based data compression capabilities for the Cisco 7000, 7200 and 7500 series routers. The use of the CSA ensures high compression performance for each link, without impacting the routing and switching capabilities of the platform or the throughput of each serial link. The CSA off-loads all compression- and decompression-related packet handling from the host processor by compressing and decompressing packets passing through synchronous serial port adapters configured for a peak line rate of 16 Mbps or lower.
Two versions of the Compression Service Adapter are available. The SA-Comp/1 is a 786 KB memory configuration that supports up to 64 compression contexts. The SA-Comp/4 is a 3 MB memory configuration, which supports up to 256 compression contexts. There is one compression context for each PPP link and one compression context for each virtual circuit in a Frame Relay link.
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Description |
Cisco 7100 |
Cisco 7200 |
Cisco 7200VXR |
Cisco 7500/VIP2 |
Part Number |
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Compression Service Adapter Model 1 Supports 64 logical circuits |
Yes |
Yes |
NO |
NO |
SA-COMP/1 |
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Compression Service Adapter Model 4 Supports 256 logical circuits |
Yes |
Yes |
NO |
NO |
SA-COMP/4 |
