Cluster Server Installation Guide for Solaris x64 5.0 - Storage ...
Cluster Server Installation Guide for Solaris x64 5.0 - Storage ... Cluster Server Installation Guide for Solaris x64 5.0 - Storage ...
184 Advanced topics related to installing VCSLLT over UDPSee “Sample configuration: Links crossing IP routers” on page 186.Table A-8FieldField description for set-addr command in /etc/llttabDescription The ID of the cluster node; for example, 0.The string used by LLT to identify the link; for example link1,link2,….IP address assigned to the link for the peer node.Selecting UDP portsWhen selecting a UDP port, select an available 16-bit integer from the rangedescribed below.■■Use available ports (that is, ports that are not in use)] in the private range49152 to 65535Do not use:■ Ports from the range of well-known ports, 0 to 1023■ Ports from the range of registered ports, 1024 to 49151To 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 portscurrently in use. For example:# netstat -a | moreUDPLocal Address Remote Address State-------------------- -------------------- -------*.sunrpcIdle*.* Unbound*.32771 Idle*.32776 Idle*.32777 Idle*.nameIdle*.biffIdle*.talkIdle*.32779 Idle...*.55098 Idle*.syslogIdle*.58702 Idle*.* Unbound
Advanced topics related to installing VCSLLT over UDP185Look in the UDP section of the output; UDP ports listed under Local Address arealready in use. If a port is listed in the /etc/services file, its associated name isdisplayed rather than the port number in the output.Configuring LLT on subnetsYou need to make sure to properly configure the netmask and broadcast addresswhen nodes reside on different subnets.Configuring the netmaskIf you have nodes on different subnets, set the netmask so that the nodes can access the subnets in use.For example:■■For first network interfaceIP address=192.168.30.1, Broadcast address=192.168.30.255, Netmask=255.255.255.0For second network interfaceIP address=192.168.31.1, Broadcast address=192.168.31.255, Netmask=Mask:255.255.255.0Configuring the broadcast addressIf you have nodes on different subnets, set the broadcast address in /etc/llttabdepending on the subnet that the links are on.An example of a typical /etc/llttab file when nodes are on different subnets. Note the explicitly set broadcast address for each link.# cat /etc/llttabset-node nodexyzset-cluster 100link link1 /dev/udp - udp 50000 - 192.168.30.1 192.168.30.255link link2 /dev/udp - udp 50001 - 192.168.31.1 192.168.31.255Sample configuration: Direct-attached linksThe following illustration depicts a typical configuration of direct-attachedlinks employing LLT over UDP.
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184 Advanced topics related to installing VCSLLT over UDPSee “Sample configuration: Links crossing IP routers” on page 186.Table A-8FieldField description <strong>for</strong> set-addr command in /etc/llttabDescription The ID of the cluster node; <strong>for</strong> example, 0.The string used by LLT to identify the link; <strong>for</strong> example link1,link2,….IP address assigned to the link <strong>for</strong> the peer node.Selecting UDP portsWhen selecting a UDP port, select an available 16-bit integer from the rangedescribed below.■■Use available ports (that is, ports that are not in use)] in the private range49152 to 65535Do not use:■ Ports from the range of well-known ports, 0 to 1023■ Ports from the range of registered ports, 1024 to 49151To check which ports are defined as defaults <strong>for</strong> a node, examine the file /etc/services. You should also use the netstat command to list the UDP portscurrently in use. For example:# netstat -a | moreUDPLocal Address Remote Address State-------------------- -------------------- -------*.sunrpcIdle*.* Unbound*.32771 Idle*.32776 Idle*.32777 Idle*.nameIdle*.biffIdle*.talkIdle*.32779 Idle...*.55098 Idle*.syslogIdle*.58702 Idle*.* Unbound
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