Veritas Storage Foundation 5.1 SP1 Cluster File System Installation Guide (5900-1510, April 2011)

set-cluster 1
link link1 /dev/udp - udp 50000 - 192.168.9.2 192.168.9.255
link link2 /dev/udp - udp 50001 - 192.168.10.2 192.168.10.255
Verify the subnet mask using the ifconfig command to ensure that the two
links are on separate subnets.
nebula # ifconfig lan1
lan1: flags=1843<UP,BROADCAST,RUNNING,MULTICAST,CKO>
inet 192.168.9.2 netmask ffffff00 broadcast 192.168.9.255
nebula # ifconfig lan2
lan2: flags=1843<UP,BROADCAST,RUNNING,MULTICAST,CKO>
inet 192.168.10.2 netmask ffffff00 broadcast 192.168.10.255
The link command in the /etc/llttab file
Review the link command information in this section for the /etc/llttab file.
See the following information for sample configurations:
■ See “Sample configuration: direct-attached links” on page 494.
■ See “Sample configuration: links crossing IP routers” on page 496.
Table L-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.
Table L-1
Field description for link command in /etc/llttab
DescriptionField
A unique string that is used as a tag by LLT; for example link1,
link2,....
tag-name
The device path of the UDP protocol; for example /dev/udp.device
Nodes using the link. "-" indicates all cluster nodes are to be
configured for this link.
node-range
Type of link; must be "udp" for LLT over UDP.link-type
Unique UDP port in the range of 49152-65535 for the link.
See “Selecting UDP ports” on page 492.
udp-port
"-" 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.
MTU
491Configuring LLT over UDP using IPv4
Manually configuring LLT over UDP using IPv4