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NOTE: Do not perform the next two bulleted items if your backup system console is shipped
with a new NonStop BladeSystem. In this case, HP has already configured these items for
you.
• Change the preconfigured DHCP configuration of the backup system console before you
add it to the LAN.
• Change the preconfigured IP address of the backup system console before you add it to the
LAN.
CAUTION: Networks with more than one path between any two systems can cause loops
that result in message duplication and broadcast storms that can bring down the network.
If a second connection is used, refer to the documentation for the ProCurve 2524 maintenance
switch and enable STP in the maintenance switches. STP ensures only one active path at any
given moment between two systems on the network. In networks with two or more physical
paths between two systems, STP ensures only one active path between them and blocks all
other redundant paths.
Multiple System Consoles Managing One System
Two maintenance switches provide fault tolerance and extra ports for adding system consoles.
You must change the preconfigured IP addresses of the second and subsequent system consoles
before you can add them to the LAN. Only two system consoles should run the DHCP, DNS,
BOOTP, FTP, and TFTP servers. These services should not be running on other consoles in the
same maintenance LAN.
Managing Multiple Systems Using One or Two System Consoles
If you want to manage more than one system from a console (or from a fault-tolerant pair of
consoles), you can daisy chain the maintenance switches together. This configuration requires
an IP address scheme to support it. Contact your HP service provider to design this configuration.
Cascading Ethernet Switch or Hub Configuration
Additional Ethernet switches or hubs can be connected (cascaded) to the maintenance switches
already installed. Primary and backup system consoles and the server must be on the same
subnet.
You must change the preconfigured IP addresses of the second and subsequent system consoles
before you can add them to the LAN.
System Consoles 91