Symantec Veritas Cluster Server Installation Manual page 148

148 Installing VCS on a single node
Adding a node to a single-node cluster
LLT directives
Table 8-4
Directive Description
Assigns the system ID or symbolic name. The system ID number
set-node
must be unique for each system in the cluster, and must be in the
range 0-31. The symbolic name corresponds to the system ID in the
/etc/llthosts file.Note that LLT fails to operate if any systems share
the same ID.
Attaches LLT to a network interface. At least one link is required,
link
and up to eight are supported. The first argument to link is a
user-defined tag shown in the lltstat(1M) output to identify the
link. It may also be used in llttab to set optional static MAC
addresses.
The second argument to link is the device name of the network
interface. Its format is device_name:device_instance_number. The
remaining four arguments to link are defaults; these arguments
should be modified only in advanced configurations. There should
be one link directive for each network interface. LLT uses an
unregistered Ethernet SAP of 0xCAFE. If the SAP is unacceptable,
refer to the llttab(4) manual page for information on how to
customize SAP. Note that IP addresses do not need to be assigned
to the network device; LLT does not use IP addresses.
Assigns a unique cluster number. Use this directive when more than
set-cluster
one cluster is configured on the same physical network connection.
LLT uses a default cluster number of zero.
Use this directive in place of link for public network interfaces.
link-lowpri
This directive prevents VCS communication on the public network
until the network is the last link, and reduces the rate of heartbeat
broadcasts. Note that LLT distributes network traffic evenly across
all available network connections. It also enables VCS
communication, and broadcasts heartbeats to monitor each network
connection.
For more information about LLT directives, refer to the
Additional considerations for LLT
You must attach each network interface that is configured for LLT to a separate
and distinct physical network.
(4) manual page.
llttab