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

The set-addr command in the /etc/llttab file
The set-addr command in the /etc/llttab file is required when the multicast
feature of LLT is disabled, such as when LLT must cross IP routers.
See “Sample configuration: links crossing IP routers” on page 485.
Table K-2 describes the fields of the set-addr command.
Table K-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
IPv6 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)
Proto Recv-Q Send-Q Local Address Foreign Address (state)
udp 0 0 *.ntalk *.*
udp 0 0 *.* *.*
udp 0 0 *.49193 *.*
udp 0 0 *.49152 *.*
udp 0 0 *.portmap *.*
udp 0 0 *.* *.*
udp 0 0 *.135 *.*
udp 0 0 *.2121 *.*
udp 0 0 *.xdmcp *.*
483Configuring LLT over UDP using IPv6
Manually configuring LLT over UDP using IPv6