Operating System/400 (5722-SS1)476 iSeries HandbookVirtual LAN – New with V5R1Virtual LAN is new with OS/400 V5R1. Virtual LAN provides 16 independent high speedinternal bus-to-bus communication paths between logical partitions and supports TCP/IPprotocol. Additional communication hardware is not required.Virtual LAN provides the additional granularity to set up high speed communications betweenpartitions by being selective on which partitions or applications within that partition areallowed to communicate with other logical partitions on the system. More importantly, itallows high speed bus to bus communication between OS/400 partitions and Linux partitions.It is possible to select multiple communication paths between partitions and potentially ties ineach of these paths to a specific application.The enablement and set up of Virtual LAN is easy and does not require an IPL or any specialhardware or software. Once a virtual communication port is enabled for a given partition, acommunication resource (CMNxx) is created for that partition. The user can then create ahigh speed 1 GB Ethernet line description over this resource and set up TCP/IP configurationappropriately to start communicating to another partition. A maximum of 16 virtual ports canbe enabled for high speed communications per partition.Virtual LAN does not require any additional software or hardware. It provides the capabilityfor multiple communication paths between applications that are executed in each of thepartitions.Suggested ReadingFor additional information on Logical Partitioning, see:http://www.ibm.com/servers/eserver/iseries/lpar820 Processors#2397, #2398, #2426, #2427830 Processors#2400, #2402, #2403, #2351840 #2418, #2420, #2416, #2417,#2419V4R5yes yes noV5R1 yes+ yes yes /dedicatedprocessor820 Processors#0150, #0151, #0152, #2435, #2436,#2437, #2438, #2456, #2457, and#2458840 Processors#2461, #2352, #2353, and #2354V5R1 yes+ yes yes / sharedprocessorNote: All partitions must be at V5R1 to support processor sharing and dynamic movement of processorresources.Supported Processors PrimaryPartitionSecondary Partition LINUXV4R4 V4R5 V5R1 V5R1
