Managing Serviceguard Nineteenth Edition, Reprinted June 2011

NETWORK_INTERFACE The name of each LAN that will be used for heartbeats or
for user data on the node identified by the preceding
NODE_NAME. An example is lan0. See also
HEARTBEAT_IP, STATIONARY_IP, and “About Hostname
Address Families: IPv4-Only, IPv6-Only, and Mixed Mode”
(page 102).
NOTE: Any subnet that is configured in this cluster
configuration file as a SUBNET for IP monitoring purposes,
or as a monitored_subnet in a package configuration
file (or SUBNET in a legacy package; see “Package
Configuration Planning ” (page 120)) must be specified in
the cluster configuration file via NETWORK_INTERFACE and
either STATIONARY_IP or HEARTBEAT_IP. Similarly, any
subnet that is used by a package for relocatable addresses
should be configured into the cluster via
NETWORK_INTERFACE and either STATIONARY_IP or
HEARTBEAT_IP. For more information about relocatable
addresses, see “Stationary and Relocatable IP Addresses ”
(page 64) and the descriptions of the package ip_
parameters (page 231).
IMPORTANT: See “Cross-Subnet Configurations” (page 29)
for important information about requirements for such
configurations.
For information about changing the configuration online,
see “Changing the Cluster Networking Configuration while
the Cluster Is Running” (page 284).
HEARTBEAT_IP IP notation indicating this node's connection to a subnet that
will carry the cluster heartbeat.
NOTE: Any subnet that is configured in this cluster
configuration file as a SUBNET for IP monitoring purposes,
or as a monitored_subnet in a package configuration
file (or SUBNET in a legacy package; see “Package
Configuration Planning ” (page 120)) must be specified in
the cluster configuration file via NETWORK_INTERFACE and
either STATIONARY_IP or HEARTBEAT_IP. Similarly, any
subnet that is used by a package for relocatable addresses
should be configured into the cluster via
NETWORK_INTERFACE and either STATIONARY_IP or
HEARTBEAT_IP. For more information about relocatable
addresses, see “Stationary and Relocatable IP Addresses ”
(page 64) and the descriptions of the package ip_
parameters (page 231).
If HOSTNAME_ADDRESS_FAMILY is set to IPV4 or ANY, a
heartbeat IP address can be either an IPv4 or an IPv6
address, with the exceptions noted below. If
HOSTNAME_ADDRESS_FAMILY is set to IPV6, all heartbeat
IP addresses must be IPv6 addresses.
For more information about the IPv6 address format, see
“IPv6 Address Types” (page 364). Heartbeat IP addresses
Cluster Configuration Planning 109