User`s guide

R Series Data Center Products User’s Guide, Rev. B Chassis and Blade Installation • 55
The RMC (in a BSBP or DCBP) uses the following rules for auto-negotiating a Primary
RMC in a Control Chain:
• An RMC must be active (i.e., powered up and functioning correctly) to assert its
status as Primary.
• If an RMC is present in a chain, that RMC must always be the Primary.
For best results, follow these guidelines for configuring your Control Chains:
• Do not use Mixed Mode (connecting a mix of R4300s, BSBPs, and/or DCBPs) for
connecting your Control Chain.
• Use an RMC to manage only BSBP- and DCBP-equipped chassis.
• Configure RMCs using Telnet.
• Use an RMM to manage new R4300 chassis, and BSBP- and DCBP-equipped
chassis that do not contain an RMC.
• Configure RMMs using Sentral.
• If your Control Chain contains a mix of R4300s, BSBPs, and/or DCBPs and you
have an RMC installed in a BSBP or DCBP, that RMC is always the Primary and it
does not provide access to all of the functions of the R4300.
• If you add BSBPs or DCBPs to a Control Chain that contains one or more RMMs,
exchange BackPacks with RMCs installed for BackPacks that do not have RMCs.
NOTE: Maintain the default setting of JP1 on the RMM (auto-negotiation enabled).
See Figure 26 on page 54. Change this setting only at the recommendation of
ClearCube Technical Support or a ClearCube Support Engineer.
Configuring the RMM
ClearCube recommends using Sentral as the primary configuration tool for RMMs.
See the Sentral Administrator’s Guide for complete information. The RMM can also be
configured with Telnet. To configure an RMM using Telnet, do the following:
1. Open a command window and enter
telnet RMM_IPAddress
where RMM_IPAddress is the IP address of the RMM to be configured.
2. Enter the password for the RMM (no characters are echoed), and type
cfg all
The list of configuration parameters in Figure 27 is shown.