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.

Scroll to top