Additional Network Protocols

The network protocols listed in the following table are unnecessary for Apstra DCD server functionality. However, they may be needed for network device configuration, discovery, or direct device access.

Table 1: Additional Network Protocols

Source	Destination	Protocol	Description
Administrator	Network Device	tcp/22 (ssh)	Device management from Administrator
Network Device	DNS Server	udp/53 (dns)	DNS Discovery for Apstra DCD server IP (if applicable)
Network Device	DHCP Server	udp/67-68 (dhcp)	DHCP for automatic management IP (if applicable)
		(icmp type 0, type 8 for echo and response	As necessary for network troubleshooting. Not required for the Apstra DCD server.