Establishing Redundancy Between Rpm Cards - Cisco MGX 8850 (PXM1E/PXM45) Configuration Manual

Chapter 6 Preparing RPM Cards for Operation
The system image file line indicates which file was used to load the software currently in use. In this
example, the software was loaded from the x: drive, which corresponds to C:FW on the switch. The
filename shown identifies the source file for the running image. This filename is configured in Cisco IOS
global configuration mode with the boot system command.

Establishing Redundancy Between RPM Cards

RPM cards support one-to-n (1:n) card redundancy. With 1:n redundancy, one RPM card can serve as a
secondary or backup card for multiple RPM cards.
Primary and secondary cards can run on incompatible software images. However, the software image on
Note
the secondary card must be at the same level or higher than the software image on the primary card.
To establish a backup card for an RPM card, use the following procedure.
Establish a configuration session using a user name with SUPER_GP privileges or higher.
Step 1
Step 2 If you have not done so already, initialize both cards as described earlier in the
section.
Step 3 Enter the dspcds command to verify that both RPM cards are in the "Active" state.
Note
Step 4 Enter the addred command as follows:
mgx8850a.7.PXM.a> addred <redPrimarySlotNum> <redSecondarySlotNum> <redType>
Replace <redPrimarySlotNum> with the slot number of the primary RPM card, and replace
<redSecondarySlotNum> with the slot number of the secondary RPM card. Replace <redType> with the
number 2 for 1:n redundancy.
After you enter the addred command, the switch resets the secondary card; thus, the secondary card will
be unavailable for a couple of minutes. When the reset is complete, a dspcds command will show the
primary and secondary cards in the active and standby states, respectively.
Note
Step 5 Enter the cc command to select the card slot in which the primary RPM-PR card is installed. For
example:
mgx8850a.7.PXM.a> cc 9
Enter global configuration mode. For example:
Step 6
Router>enable
Password:
Router#configure terminal
Enter configuration commands, one per line.
Release 5.0.10, OL-3845-01 Rev. B0, August 16, 2004
The secondary RPM card must not have any configured connections when it is configured for
redundancy.
The switch only supports RPM-PR and RPM-XF cards. If you insert another card type, such as
the RPM/B, the addred command will not work.
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide
Establishing Redundancy Between RPM Cards
"Initializing RPM
End with CNTL/Z.
Cards"
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