Fujitsu PRIMEQUEST 440, System Design Manual

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4-6 C122-B001-02EN
CHAPTER 4 Hardware System Management
VLAN function of the management LAN
The hub for the management LAN can be found on the MMB. On this hub, cables for
each partition network, user port, Fujitsu certified service engineer's port, and
REMCS port are concentrated and the Virtual LAN (VLAN) function is mounted.
In a VLAN, the respective ports of one switching hub are logically divided into
groups, each functioning as an independent LAN.
The VLAN function of the PRIMEQUEST management LAN provides the following
three types of mode. You can select the mode appropriate for the operation method
you are using.
z VLAN mode of the management LAN
(1) Inter-partition communication connection mode (No VLAN mode)
This mode enables communication between ports of all partitions. However,
communication between the REMCS/Fujitsu certified service engineer's port
and the user port, and communication between the REMCS/Fujitsu certified
service engineer's port and partition ports are not supported. Y in
Table 4.1
indicates that communication between the corresponding ports is available.
Table 4.1 Inter-partition communication connection mode (No VLAN mode)
(2) Inter-partition communication disconnect mode (VLAN mode)
This mode disconnects communication with partitions. However,
communication between the user port and partition ports and between the
MMB and partition ports are enabled in the cabinet. Y in
Table 4.2 indicates
that communication between the corresponding ports is available.
No VLAN mode User port
CE
maintenance
port
REMCS
port
MMB Partition ports
User port Y N N Y Y
Fujitsu certified
service engineer's
port N Y N Y N
REMCS port N N Y Y N
MMB Y Y Y Y Y
Partition ports Y N N Y Y