CSS cables supported when S series modular switches use service port clustering

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For details about supported CSS cables and the maximum of transmission distance when S series modular switches use service port clustering, see the right page.
For details about CSS cables on S series fixed switches

Other related questions:
What are the restrictions when service ports are configured as CSS ports on S series modular switches
The restrictions are as follows: 1. A card port can be added to only one logical CSS port. 2. On the EH1D2X08SED4 and EH1D2X08SED5 for the S9700, ES1D2X08SED4 and ES1D2X08SED5 for the S7700, and LE2D2X08SED4 and LE2D2X08SED5 for the S9300, at most four ports can be configured as CSS physical member ports. The four physical member ports must be the first four ports (numbered 0 to 3) or the last four ports (numbered 4 to 7) on the LPUs. 3. On the EH1D2X16SFC0/EH1D2X40SFC0/EH1D2X32SSC0/EH1D2X16SSC2 for the S9700, ES1D2X16SFC0/ES1D2X40SFC0/ES1D2X32SSC0/ES1D2X16SSC2 for the S7700, and LE0DX16SFC00/LE0DX40SFC00/LE1D2X32SSC0/LE1D2X16SSC2 for the S9300, a group of four ports must be configured as CSS physical member ports together. For example, ports 0 to 3 or ports 4-7 must be configured together, but ports 2 to 5 cannot be configured together.

Optical modules supported when S series modular switches use service port clustering
For details on optical modules supported when S series modular switches use service port clustering, see “Pluggable Modules for Interfaces�?on the right page.

How to restore a CSS port to a service port for the CSS composed of S series modular switches
Perform either of the following operations: 1. In non-CSS scenarios, to restore a physical member port to a service port on a standalone switch, run the undo interface css-port command in the system view. 2. In CSS scenarios, to restore a physical member port to a service port in a CSS, run the shutdown interface ** command in the logical CSS port view (run the interface css-port port-id command to enter the view) to shut down the physical member port and then run the undo port interface ** enable command.

Are cables connected or CSS is configured first when S series modular switches establish a CSS
When S series modular switches establish a CSS, you are advised to connect cables before CSS configuration. For details on CSS setup and configuration of S7700&S9700

Cards on S series modular switches that support service port clustering
The page on the right describes the cards that support service port clustering for S series modular switches.

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