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CISCO CSS 11500 SERIES: CHASSIS AND MODULES
The Cisco CSS 11500 Series Content Services Switch includes four models:
• A 1-rack unit, fixed-configuration Cisco CSS 11501 (6-Gbps aggregate throughput)
• A 1-rack unit, fixed-configuration Cisco CSS 11501S-C with integrated SSL termination and HTTP compression support (6-Gbps aggregate
throughput)
• A 2-rack unit, 3-slot Cisco CSS 11503 (20-Gbps aggregate throughput)
• A 5-rack unit, 6-slot Cisco CSS 11506 (40-Gbps aggregate throughput)
The Cisco CSS 11501 and the Cisco CSS 11501S-C with SSL termination and compression supports eight 10/100 Ethernet ports and one Gigabit
Ethernet port though an optional Small Form-Factor Pluggable gigabit interface converter (SFP GBIC). Both Cisco CSS 11501 models feature
a console port, an Ethernet port for management and two PCMCIA slots that hold up to two 256-MB flash memory disks, up to two 1-GB flash
drives, or one of each. The Cisco CSS 11501 with SSL termination and compression delivers 1400 SSL transactions per second and 250 Mbps
of bulk encryption (ARC4) along with 500 Mbps compression capacity by exploiting an internal card with state-of-the-art cryptology and
compression chips.
The Cisco CSS 11503 and Cisco CSS 11506 are both modular platforms with interchangeable modules. They can also share flash memory and
GBICs. The Cisco CSS 11501 has fixed memory and does support the same flash memory as the other two models. The Cisco CSS 11506 requires
at least one switch control module (SCM) and can be configured with a second in standby mode. With the required SCM in one slot, the Cisco CSS
11506 has five additional slots supporting any combination of I/O, SSL, or session accelerator modules. The Cisco CSS 11503 requires a SCM and
accommodates any two of the other optional modules.
The Cisco CSS 11506 supports not only redundancy in switch control modules but also redundant power supplies and redundant switch modules
(20 Gbps each). All SCMs support redundant disk drives.
All modules participate in flow setup, but they differ primarily in control functions, performance, SSL capabilities, and I/O. Each Cisco CSS 11500
Module consists of one high-speed MIPS RISC processor for flow setup, one network processor for flow forwarding, one classification engine for
accelerated lookups in bridge/access control list (ACL) tables, and up to 288 MB of RDRAM.
SWITCH CONTROL MODULE FOR THE CISCO CSS 11500 SERIES
The Cisco CSS 11500 Switch Control Module not only governs the entire system, it also contributes to I/O density and flow performance. The SCM
comes standard with 2-Gigabit Ethernet ports supporting SFP GBICs and has a console port and dedicated Ethernet port for management. The SCM
also features two PCMCIA slots that hold up to two 1-GB flash memory disks.
SSL AND COMPRESSION MODULE FOR THE CISCO CSS 11500 SERIES
The Cisco CSS 11500 SSL and compression module is the ideal solution for handling high volumes of SSL transactions and that occupy today’s
e-business data centers. The module integrates state-of-the-art SSL and compression processors into the leading content switching technology of
Cisco WebNS. In addition to superior price performance, the SSL and compression module simplifies the management of digital certificates and
offers new possibilities in optimizing the switch-to-server architecture for security and optimization. The SSL compression module delivers 1400
SSL transactions per second and 250 Mbps of bulk encryption (ARC4) along with 500 Mbps of compression capability.
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