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Remotely managing the Ethernet switch module
The Ethernet switch module supports two remote-access modes for
management through Ethernet connections. You can select the mode that is
best suited for your BladeCenter environment. The Ethernet switch module has
an internal Ethernet path to the management module and the four external
Ethernet ports on the switch module.
v The default mode uses the internal path to the management module only. In
this mode, the remote-access link to the management console must be
attached to the 10/100 Mbps Ethernet port on the management module.
With this mode, the IP addresses and SNMP parameters of the Ethernet
switch modules can be automatically assigned by the IBM Director
BladeCenter Deployment Wizard or, you must manually assign them
through the BladeCenter Management and Configuration Program. This
mode enables the system administrator to provide a secure LAN for
management of the BladeCenter subsystems separately from the data
network.
Important: With this mode, the Ethernet switch module does not respond to
remote-management commands through the four external Ethernet ports on
the switch module.
See the applicable BladeCenter Installation and User's Guide on the IBM
BladeCenter Documentation CD for additional instructions for configuring the
Ethernet switch module for this mode of operation.
v The system administrator can choose to enable remote management of the
Ethernet switch module through the four external Ethernet ports on the
switch module, instead of or in addition to access through the management
module. This mode can only be enabled through the management module
configuration interface. Once this mode is enabled, the external Ethernet
ports will support both management traffic and BladeCenter application
data traffic. Also, the Ethernet switch module can transmit DHCP and
BOOTP request frames through the external Ethernet ports.
This mode allows the Ethernet switch module IP addresses to reside on a
different subnet than the management modules. This is useful when the
Ethernet switch modules are to be managed and controlled as part of the
overall network infrastructure, while maintaining secure management of
other BladeCenter subsystems through the management module. However,
management access to the Ethernet switch-module link will be lost if the
Ethernet switch module IP address is not on the same subnet as the
management module. The BladeCenter 4-Port Gb Ethernet Switch Module
Installation and User's Guide contains additional instructions for configuring
the Ethernet switch module for this mode of operation.
The two previously described modes are only applicable to the Ethernet switch
module. The management module can only be remotely accessed through the
10/100 Mbps Ethernet port on the management module.
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IBM BladeCenter 4-Port Gb Ethernet Switch Module: Installation Guide
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