How to install a CSS card on an S series switch

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For details about how to install a CSS card on S7700&S9700 series, see "(Optional) Installing a CSS Subcard or an Enhanced Flexible Service Subcard" at S7700&S9700 Hardware Installation and Maintenance Guide-Installing Modules.
For details about how to install a CSS card on S12700 series, see "(Optional) Installing a CSS Subcard" at S12700 Hardware Installation and Maintenance Guide-Installing Modules.
For details about how to install a CSS card on S9300 series, see "(Optional) Installing a CSS Subcard or an Enhanced Flexible Service Subcard" at S9300 Hardware Installation and Maintenance Guide-Installing Modules.

Other related questions:
How many CSS cards can be installed on S series modular switches that constitute a CSS
CSS cards of the S7700/S9700/S9300 are installed on the MPU. Two devices must be equipped with the active and standby MPUs to meet requirements of CSS card connections. In addition, two CSS cards are installed on each device; For the S12700, a CSS card is installed on the SFU. The number of CSS cards must be the same as that of SFUs. One S12708/S12712 supports a maximum of four cards, and the S12704 supports one or two cards. Using two or more cards is recommended.

What is CSS card's bandwidth on S series modular switches
CSS cards such as ES02VSTSA (S7700) and LE0D0VSTSA00 (S9300) provide four 16GE optical interfaces for data transmission and line-speed switching, so a CSS card provides 64 Gbit/s bandwidth (4*16 Gbit/s). CSS cards such as EH1D2VS08000 (S9700&S12700) provide eight 16GE optical interfaces for data transmission and line-speed switching, so a CSS card provides 80 Gbit/s bandwidth (8*10 Gbit/s).

Which CSS cards are supported when S series modular switches establish a CSS
The S9706/S9712 and S12704/S12708/S12712 support EH1D2VS08000; the S7706/S7712 supports ES02VSTSA; the S9306/S9312 supports LE0D0VSTSA00. Different types of CSS cards cannot be used together.

Card installation and replacement on S series switches
For card installation and replacement of switches, see the Hardware Installation and Maintenance Guide. For the S9300 and S9300E, see S9300&S9300E Hardware Installation and Maintenance Guide. For the S7700 and S9700, see S7700&S9700 Hardware Installation and Maintenance Guide. For the S12700, see S12700 Hardware Installation and Maintenance Guide.

How to restart the CSS of S series modular switches
After S series modular switches establish a CSS, two devices are virtualized into one logical switch. You can run the reboot command to restart the CSS.

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