Are services affected when one member S series modular switch leaves the CSS

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When one member S series modular switch leaves the CSS, services on the switch are affected.

Other related questions:
Are services affected when one S series modular switch joins the CSS or the CSSs merge
One device joins the CSS or the CSSs merge: (1) CSS joining indicates that a new member switch can join a running single-chassis CSS. The switch in the original single-chassis CSS becomes the master switch, and the new switch becomes the standby switch after restart. Services on the master switch are not affected and services on the standby switch are interrupted. (2) CSS merging indicates that two running CSSs can merge into one CSS. Two single-chassis CSSs merge into one and the master switch is selected as the merged CSS. The master switch retains its original configuration, and its services are not affected. The standby switch restarts, joins the new CSS as the standby switch, and synchronizes the configuration file with the master switch. Original services on this switch are interrupted.

Are services affected after a CSS composed of S series modular switches splits
When a CSS splits, the two devices work independently, and inter-chassis services are interrupted. If MAD is configured, the physical interfaces of one device will be shut down, and services on the interfaces are interrupted.

Are services affected when one CSS cable is removed from a CSS composed of S series modular switches
Removing a CSS cable results in packet loss in a CSS. The bandwidth cannot meet the requirements when there is heavy traffic.

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

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.

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