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Chapter 2
Cabling and Troubleshooting the CSS
CSS 11503 and CSS 11506 Module Overview
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The CSS 11503 and CSS 11506 are compact modular platforms, delivering
transport and application (layers 4-7) services for Internet and Intranet data
centers. A CSS is a fully-distributed architecture with all modules in the system
contributing to the overall processing and memory needs for flow set up.
Performance increases incrementally as you add modules, and the modules
balance the overall traffic load.
The Cisco 11506 is a five-rack unit, supporting six-slots, with 40-Gbps
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aggregate throughput. The CSS 11506 requires at least one Switch Control
Module (SCM) and may be configured with a second SCM in standby mode
for redundancy. With the required SCM in one slot, the CSS 11506 has five
additional slots supporting any combination of I/O modules.
The Cisco 11503 is a two-rack-unit, supporting three-slots, with 20-Gbps
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aggregate throughput. The CSS 11503 requires an SCM and accommodates
any two of the other modules.
Though all modules except for the SSL module participate in flow setup, they
differ primarily in control functions, performance, and I/O. Each CSS 11500
module consists of one high-speed MIPS RISC processor for flow-setup, one
network processor for flow forwarding, one policy co-processor for search
operations and a maximum of 288 MB of RDRAM (up to 256 MB of usable
memory).
The CSS 11506 not only supports redundancy in SCMs but also supports
redundant power supplies and redundant Switch Modules (20 Gbps each). A CSS
11506 can contain a maximum of three power supplies, but it requires two
functioning power supplies to guarantee service.
The CSS modules are as follows:
288 MB (256 MB of usable memory) Switch Control Module (SCM) with:
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Two 1000-Mbps Ethernet small form-factor pluggable gigabit interface
converters (SFP GBICs); 1000BASE-SX or LX with LC-type
connectors, or 1000BASE-T with RJ-45 connectors.
Two PCMCIA slots for a hard or flash disk drive for the system software,
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and logging and off-line system files.
RJ-45 RS-232 console port.
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1 RJ-45 10-Mbps half-duplex Ethernet management connector.
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Cisco 11500 Series Content Services Switch Hardware Installation Guide
Cabling the CSS 11503 and CSS 11506 Modules
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Troubleshooting
