NonStop NS14000 Series Planning Guide (H06.13+)

• Connect one Ethernet port in each VIO enclosure to each maintenance switch.
• Connect one maintenance switch to an HP extension bar that is powered by the UPS. HP
extension bars are installed in place of a PDU on the rear right side of the modular cabinet.
CAUTION: To avoid possible conflicts on the LAN:
If the configuration includes two maintenance switches, install and configure one switch
completely, including assigning its IP address, before you install the other.
Only one connection between the maintenance switches is permitted. More than one connection
overloads network traffic, rendering the dedicated service LAN unusable.
If VIO enclosures will have static IP addresses, configure one completely, including assigning
the IP address, before you configure the other.
This illustration shows a fault-tolerant LAN configuration with two maintenance switches:
Figure 20 Fault-Tolerant LAN Configuration
IP Addresses
NonStop NS14000 series servers require Internet protocol (IP) addresses for these components
that are connected to the dedicated service LAN:
• VIO enclosure logic boards
• Maintenance switches
Dedicated Service LAN 87