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LXI Ports, Protocols, and Services

LXI conformant devices have a standard set of Ports, Protocols, and Services for LAN operation, but there are also LXI Device-specific Ports, Protocols, and Services. LXI Extended features are optional, and the Home page of the LXI Device lists these extended features, if implemented.

Standard LXI Device Ports, Protocols, and Services
Protocol/Service Port Base Protocol Notes
mDNS 5353 UDP/TCP Zero-config protocol for <hostname>.local address resolution; service discovery; Multicast 224.0.0251, FF02::FB
Http 80 TCP Instrument web pages
ICMPv4   ICMP Typically enables echo request/respond for ping
ICMPv6   ICMP Optional - Typically enables echo request/respond for ping, also SLAAC for IPv6 addresses, RDDNS
Arp   Arp Used to confirm address assignments
DHCPv4 67/68 UDP/TCP IPv4 address assignment, DNS Server, Dynamic DNS, Gateway
DHCPv6 546/547 UDP/TCP Optional IPv6 address assignment, DNSv6 Server, IPv6 Gateway
DNS 53 UDP Naming Service
Telnet 23 TCP Bidirectional interactive text-oriented communication.
 
LXI Device-specific Ports, Protocols, and Services
Protocl/Service Port Base Protocol Notes
HiSLIP 4880 TCP Optional instrument control protocol
VXI-11 111 TCP Builds upon Sun-RPC and port-mapper.
Scpi-raw 5025 TCP Optional instrument control protocol
Scpi-telnet 5024 TCP Optional instrument control protocol over Telnet
LXI-eventsvc 5044 UDP/TCP Optional LXI Event support for instrument triggering; multicast 224.0.23.159, FF02::138
Ptp-event 319 UDP/TCP Optional LXI Profile IEEE 1588 Precision Time Control; multicast 224.0.1.129, FF02::181
Ptp-general 320 UDP/TCP Optional LXI Profile IEEE 1588 Precision Time Control; multicast 224.0.1.129, FF02::181