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

Table L-1
Field description for link command in /etc/llttab (continued)
DescriptionField
IP address of the link on the local node.IP address
■ For clusters with enabled broadcasts, specify the value of the
subnet broadcast address.
■ "-" is the default for clusters spanning routers.
bcast-address
The set-addr command in the /etc/llttab file
The set-addr command in the /etc/llttab file is required when the broadcast
feature of LLT is disabled, such as when LLT must cross IP routers.
See “Sample configuration: links crossing IP routers” on page 496.
Table L-2 describes the fields of the set-addr command.
Table L-2
Field description for set-addr command in /etc/llttab
DescriptionField
The ID of the cluster node; for example, 0.node-id
The string that LLT uses to identify the link; for example link1,
link2,....
link tag-name
IP address assigned to the link for the peer node.address
Selecting UDP ports
When you select a UDP port, select an available 16-bit integer from the range that
follows:
■ Use available ports in the private range 49152 to 65535
■ Do not use the following ports:
■ Ports from the range of well-known ports, 0 to 1023
■ Ports from the range of registered ports, 1024 to 49151
To check which ports are defined as defaults for a node, examine the file
/etc/services. You should also use the netstat command to list the UDP ports
currently in use. For example:
# netstat -a | head -2 ; netstat -a | grep udp
Active Internet connections (including servers)
Configuring LLT over UDP using IPv4
Manually configuring LLT over UDP using IPv4
492