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4-42
C122-E001-10EN
CHAPTER 4 Work Required After Operating System Installation
(2)
Duplicating the two NICs for the management LAN (PRIMEQUEST 580A/
540A/580/540/480/440)
• SUSE 9
To duplicate the management LAN, activate the two NICs for the management LAN
in the partition and use them. The duplication software (that controls LAN
duplication) directs the send packets to the appropriate transmission line considering
the status of the candidate transmission lines, thus achieving redundancy. When you
specify duplication, a virtual interface is created to make the two NICs logically work
as one NIC. PSA and other TCP/IP application programs use the IP address specified
for this virtual interface as the local system IP address to ensure that they can
communicate with the remote system without having to consider the redundant
physical configuration.
The duplication software monitors the transmission line that extends to the external
switch and, if it detects an error, switches the transmission line.
As shown in
, PRIMEQUEST achieves duplication of the transmission line
from the partition to the external switch by including the external switch connected to
the MMB user port in the target of monitoring by the duplication software.
Figure 4.3 Concept of management LAN duplication in PRIMEQUEST
In addition, you can design further reliable transmission lines by duplicating the
external switch and the transmission lines from the remote system to the external
switch as shown in
. The settings for duplication of the transmission line
from the remote system to the external switch must be configured on the remote
system.
In this range, reliability is improved by duplication.
PRIMEQUEST
MMB#1
NIC
MMB#0
NIC
Partition
Virtual
interface
NIC#0
NIC#1
User port
External
switch
User port
Remote
system
Summary of Contents for PRIMEQUEST 400 Series
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Page 20: ...xii C122 E001 10EN NOTE ON SAFETY PCI_Box ...
Page 21: ...C122 E001 10EN xiii NOTE ON SAFETY PRIMEQUEST 520A 520 420 Main unit ...
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