User`s guide

R Series Data Center Products User’s Guide, Rev. B Chassis and Blade Installation • 59
through the Sentral software. Note that 8 x 8 functionality cannot be daisy-chained
to build larger matrices. You can also use the 8 x 8 mode as a method to provide
more than one spare per chassis.
• Install and run Sentral: The Blade Switching BackPack is controlled by
ClearCube Sentral. Installation of the tools on the controlling computer is via a
CD-ROM drive.
Figure 23 on page 49, Figure 24 on page 50, and Figure 25 on page 51 show
examples of three chassis connected together to support Spare, Administrator,
Supervisor, and 8 x 8 modes.
NOTE: Your Chassis Accessory Kit includes snap-on ferrite cores that must be added
to both ends of the red and yellow daisy-chain cables in order to meet FCC
and CE requirements for radiated emissions.
The administrator's console connects to the Primary chassis through an Ethernet
connection to the RMC. The primary chassis is then daisy-chained to all other
secondary chassis in the rack via a simple cable daisy-chaining method, using the
RS-485 bus. Secondary chassis do not need an installed RMC.
Each RMC can support as many as 14 chassis (the Primary chassis plus 13
Secondary chassis). Software components of the ClearCube Management Suite
communicate with each RMC via a unique static IP address. If your system includes
more than 14 chassis or you have more than one group of chassis to manage, you
need to configure each RMC with a different IP address. This allows you to log in to
each group of chassis independently.
NOTE: Every primary R4200 chassis with an RMC installed is shipped with the same
default network settings. If you are using multiple Chassis groups, you must
configure new IP addresses per the instructions below to avoid a conflict.
Default RMC Settings: IP Address: 192.168.1.251
Gateway: 192.168.1.1
Network: 192.168.1.0
Netmask: 255.255.255.0
Changing the IP Address of the RMC
To change the IP address on an RMC, do the following:
1. From any computer on the network connected to the RMC, open a telnet session
to log into the RMC using the default RMC IP address of 192.168.1.251. If your
network settings are incompatible with the RMC’s default settings, then you need
to select one computer (notebook, blade, or other PC) that you can use to
program the RMC. Set this computer’s network settings to be compatible with the
RMC default settings and connect its network port directly to the CONTROL IN
port on the R4200 using the provided cross-over cable. To telnet into the RMC
from a DOS prompt, type:
H:\>Telnet 192.168.1.251
The result should be:
Password: