NonStop NS14000 Series Planning Guide (H06.13+)

System-Up Dedicated Service LAN
When the system is up and the OS running, the ME connects to the system’s dedicated service
LAN using connections from the maintenance switch to ME ENET ports on each VIO enclosure. To
use the OSM Service Connection and OSM Notification Director, you must have connections from
the maintenance switch to Ethernet ports on each VIO enclosure.
For a fault-tolerant dedicated service LAN, two Ethernet ports are required; one port located in
VIO enclosure module 2 for X ServerNet fabric connectivity, and one port located in VIO enclosure
module 3 for Y ServerNet fabric connectivity. When the Ethernet port provides connection to the
dedicated service LAN, use the slower 10/100 Mbps PIF A rather than one of the high-speed
1000 Mbps Ethernet ports of PIF C or D.
Dedicated Service LAN Links With Two VIO Enclosures
This illustration shows the dedicated service LAN cables connected to the Ethernet ports in slot 6B
of both VIO enclosures (module 2 and module 3) and to the maintenance switch:
90 Maintenance and Support Connectivity