Symantec Veritas Cluster Server Installation Manual page 159

See "Sample configuration: direct-attached links"
See "Sample configuration: links crossing IP routers"
Table A-1 describes the fields of the link command that are shown in the /etc/llttab
file examples. Note that some of the fields differ from the command for standard
LLT links.
Field description for link command in /etc/llttab
Table A-1
Field
tag-name
device
node-range
link-type
udp-port
MTU
IP address
bcast-address
The set-addr command in the /etc/llttab file
The command in the /etc/llttab file is required when the broadcast
set-addr
feature of LLT is disabled, such as when LLT must cross IP routers.
See "Sample configuration: links crossing IP routers"
Table A-2 describes the fields of the set-addr command.
Description
A unique string that is used as a tag by LLT; for example link1,
link2,....
The device path of the UDP protocol; for example udp.
A place holder string. On other unix platforms like Solaris or HP,
this entry points to a device file (for example, /dev/udp). Linux
does not have devices for protocols. So this field is ignored.
Nodes using the link. "-" indicates all cluster nodes are to be
configured for this link.
Type of link; must be "udp" for LLT over UDP.
Unique UDP port in the range of 49152-65535 for the link.
See "Selecting UDP ports"
"-" is the default, which has a value of 8192. The value may be
increased or decreased depending on the configuration. Use the
lltstat -l command to display the current value.
IP address of the link on the local node.
For clusters with enabled broadcasts, specify the value of the
subnet broadcast address.
"-" is the default for clusters spanning routers.
Advanced VCS installation topics
Using the UDP layer for LLT
on page 161.
on page 163.
on page 160.
on page 163.
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