Final answer:
The management plane allows administrators to connect and manage network devices using protocols including Telnet, SSH, SNMP, and SYSLOG.
Step-by-step explanation:
The management plane allows an administrator to connect and manage a network device using protocols such as Telnet, SSH, SNMP, and can also handle log management through SYSLOG. The management plane is involved in the overall operation and configuration of the network device and provides the necessary interfaces for administrative access. Protocols such as Telnet and SSH are used for direct command-line interface access, SNMP is used for monitoring and managing network devices, and SYSLOG is a protocol used for logging system events.