Operating System/400 (5722-SS1)
476 iSeries Handbook
Virtual LAN – New with V5R1
Virtual LAN is new with OS/400 V5R1. Virtual LAN provides 16 independent high speed
internal bus-to-bus communication paths between logical partitions and supports TCP/IP
protocol. Additional communication hardware is not required.
Virtual LAN provides the additional granularity to set up high speed communications between
partitions by being selective on which partitions or applications within that partition are
allowed to communicate with other logical partitions on the system. More importantly, it
allows 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 in
each 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 special
hardware or software. Once a virtual communication port is enabled for a given partition, a
communication resource (CMNxx) is created for that partition. The user can then create a
high speed 1 GB Ethernet line description over this resource and set up TCP/IP configuration
appropriately to start communicating to another partition. A maximum of 16 virtual ports can
be enabled for high speed communications per partition.
Virtual LAN does not require any additional software or hardware. It provides the capability
for multiple communication paths between applications that are executed in each of the
partitions.
Suggested Reading
For additional information on Logical Partitioning, see:
http://www.ibm.com/servers/eserver/iseries/lpar
820 Processors
#2397, #2398, #2426, #2427
830 Processors
#2400, #2402, #2403, #2351
840 #2418, #2420, #2416, #2417,
#2419
V4R5
yes yes no
V5R1 yes+ yes yes /
dedicated
processor
820 Processors
#0150, #0151, #0152, #2435, #2436,
#2437, #2438, #2456, #2457, and
#2458
840 Processors
#2461, #2352, #2353, and #2354
V5R1 yes+ yes yes / shared
processor
Note: All partitions must be at V5R1 to support processor sharing and dynamic movement of processor
resources.
Supported Processors Primary
Partition
Secondary Partition LINUX
V4R4 V4R5 V5R1 V5R1
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