Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 447

8 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 about how to synchronize timekeeping between time servers and clients (see NTP commands). Security Provides information about role-based access control, RADIUS server, user roles, and user names (see Security eommands). Simple network management protocol Provides an application-layer protocol that provides a message format for communication between SNMP managers and agents. SNMP provides a standardized framework and a common language for network monitoring and device management (see SNMP commands). OS10 image upgrade Provides information about how to upgrade the OS10 software image (see Upgrade commands). Dynamic host configuration protocol DHCP is an application layer protocol that dynamically assigns IP addresses and other configuration parameters to network end-stations (hosts) based on configuration policies determined by network administrators. DHCP server DHCP client Relay agent Network device offering configuration parameters to the client. Network device requesting configuration parameters from the server. Intermediary network device that passes DHCP messages between the client and 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. The 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. System management 447