In a SummitStack:
start process name {slot slot}| name |  Specifies the name of the
                                process to start. You can start the following processes:  bgp, eaps exsshd, isis, lldp, netLogin, netTools, ospf, snmpMaster, snmpSubagent, telnetd, thttpd, tftpd, vrrp, xmld  | 
                        
| slot | On a SummitStack, specifies the node‘s slot number. The number is a value from 1 to 8. | 
Error: Process telnetd already exists!

Note
After you stop a process, do not change the configuration on the switch until you start the process again. A new process loads the configuration that was saved prior to stopping the process. Changes made between a process termination and a process start are lost, and error messages can result when you start the new process.As described in the section, Stopping Processes, you can use a single command, rather than multiple commands, to stop and restart a running process.
In a SummitStack:
restart process [class cname | name {slot slot}]