Reference Guide

System management
Dynamic Host
Configuration
Protocol
Provides information to dynamically assign IP addresses and other configuration parameters to network
hosts based on policies, see DHCP commands.
Network Time
Protocol
Provides information to synchronize timekeeping between time servers and clients, see NTP commands.
RESTCONF API Enables you to configure and monitor an OS10 switch using JSON-structured messages to access YANG-
modeled data in configuration data stores, see CLI commands for RESTCONF API.
Security Provides information about role-based access control, RADIUS server, user roles, and user names, see
Security commands.
Simple Network
Management
Protocol
Provides a message format for communication between Simple Network Management Protocol (SNMP)
managers and agents. SNMP provides a standardized framework and common language for network
monitoring and device management, see SNMP commands.
OS10 image
upgrade
Provides information to upgrade the OS10 software image, see Upgrade commands.
Dynamic Host Configuration Protocol
Dynamic Host Configuration Protocol (DHCP) is an application layer protocol that dynamically assigns IP addresses and other
configuration parameters to network end-stations, also known as hosts, based on configuration policies network administrators
determine.
Figure 5. Client and Server Messaging
DHCP server
Network device offering configuration parameters to the client.
DHCP client Network device requesting configuration parameters from the server.
Relay agent Intermediary network device that passes DHCP messages between the client and the server when the
server is not on the same subnet as the host.
Packet format and options
The DHCP server listens on port 67 and transmits to port 68. The DHCP client listens on port 68 and transmits to port 67.
Configuration parameters are options in the DHCP packet in type, length, value (TLV) format. To limit the number of parameters
that servers must provide, hosts enter the parameters that they require and the server sends only those parameters. DHCP
uses the User Datagram Protocol (UDP) as its transport protocol.
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