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เอกสารอ้างอิง Software_Veritas ข้อ 4.7
Configuring applications and resources in VCS 174
VCS bundled agents for UNIX

Table 6-2 Network agents and their description

Agent Description
NIC Monitors a configured NIC. If a network link fails or if a problem arises
with the NIC, the resource is marked FAULTED. You can use the NIC
agent to make a single IP address on a single adapter highly available
and monitor it. No child dependencies exist for this resource.
4.7.9
IP Manages the process of configuring a virtual IP address and its subnet
mask on an interface. You can use the IP agent to monitor a single IP
address on a single adapter. The interface must be enabled with a
physical (or administrative) base IP address before you can assign it
a virtual IP address.

MultiNICA Represents a set of network interfaces and provides failover capabilities
between them. You can use the MultiNICA agent to make IP addresses
on multiple adapter systems highly available and to monitor them. If a
MultiNICA resource changes its active device, the MultiNICA agent
handles the shifting of IP addresses.

IPMultiNIC Manages a virtual IP address that is configured as an alias on one
interface of a MultiNICA resource. If the interface faults, the IPMultiNIC
agent works with the MultiNICA resource to fail over to a backup NIC.
The IPMultiNIC agent depends upon the MultiNICA agent to select the
most preferred NIC on the system.

MultiNICB Works with the IPMultiNICB agent. The MultiNICB agent allows IP
addresses to fail over to multiple NICs on the same system before VCS
tries to fail over to another system. You can use the agent to make IP
addresses on multiple-adapter systems highly available or to monitor
them. No dependencies exist for the MultiNICB resource.
IPMultiNICB Works with the MultiNICB agent. The IPMultiNICB agent configures
and manages virtual IP addresses (IP aliases) on an active network
device that the MultiNICB resource specifies. When the MultiNICB agent
reports a particular interface as failed, the IPMultiNICB agent moves
the IP address to the next active interface. IPMultiNICB resources
depend on MultiNICB resources.
4.7.9 DNS Updates and monitors the mapping of host names to IP addresses and
canonical names (CNAME). The DNS agent performs these tasks for
a DNS zone when it fails over nodes across subnets (a wide-area
failover). Use the DNS agent when the failover source and target nodes
are on different subnets. The DNS agent updates the name server and
allows clients to connect to the failed over instance of the application
service.

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