NonStop NS14000 Planning Guide (H06.10+)

Some guidelines for configuring the DHCP server:
• Configure the range of IP addresses to be assigned dynamically by the DHCP server to be
in the same subnet as existing IP addresses on the LAN and any static IP address included
in the dedicated service LAN.
• IP addresses for these components should remain static:
— The four IP addresses reserved for the OSM Low-Level Link and Service Connection
Do not include these address in the pool of addresses the DHCP uses for address
assignment.
— The UPS (recommended but not required)
Static or Dynamic IP Addresses
Various components within the dedicated service LAN can have static or dynamic IP addresses.
This sample shows the address in an example dedicated service LAN; however, any combination
is possible:
IP AddressComponent
StaticMaintenance switches*
StaticUPSs (if the system has them)*
StaticTCP/IP process $ZTCP0**
StaticTCP/IP process $ZTCP1**
DynamicVIO enclosures
DynamicSystem consoles
*If a combination of dynamic and static IP addresses are used in the LAN configuration, HP recommends that the
maintenance switches and UPSs (if the system has them) be configured with static IP addresses.**You do not need
to reconfigure the IP addresses for the TCP/IP processes. For more information, see the NonStop NS14000 Hardware
Installation Manual.
Ethernet Cables
Ethernet connections for a dedicated service LAN require Category 5 unshielded twisted-pair
cables.
SWAN Concentrator Restrictions
• Isolate the dedicated service LAN from any ServerNet wide area network (SWAN) on a
system.
• Isolate redundantly configured SWAN concentrator subnets from the dedicated service
LAN.
• Do not connect SWANs on a subnet containing a DHCP.
One possible fault-tolerant configuration are two Ethernet connections (each in a different VIO
enclosure) with a dedicated service LAN connected to each Ethernet A port. The B port is then
available to support the SWAN LAN.
System-Up Dedicated Service LAN
When the system is up and the OS running, the ME connects to the NonStop NS14000 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.
118 Control, Configuration, and Maintenance Tools