Specifications

5-8
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 5 Preparing RPM-PR Cards for Operation
Establishing Redundancy Between Two RPM-PR Cards
To establish a backup card for an RPM-PR card, use the following procedure.
Step 1 Establish a configuration session using a user name with SUPER_GP privileges or higher.
Step 2 If you have not done so already, initialize both cards as described earlier in the “Initializing RPM-PR
Cards” section.
Step 3 Use the dspcds command to verify that both RPM-PR cards are in the “Active” state.
Note The secondary RPM card must not have any configured connections when it is configured for
redundancy.
Step 4 Enter the addred command as follows:
pop20one.7.PXM.a > addred <redPrimarySlotNum> <redSecondarySlotNum> <redType>
Replace <redPrimarySlotNum> with the slot number of the primary RPM-PR card, and replace
<redSecondarySlotNum> with the slot number of the secondary RPM-PR 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 The switch only supports RPM-PR cards. If you insert another card type, such as the RPM/B,
the addred command will not work.
Step 5 Use the cc command to select the card slot in which the primary RPM-PR card is installed. For example:
pop20two.7.PXM.a > cc 9
Step 6 Enter global configuration mode. For example,
Router>enable
Password:
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Step 7 Configure the RPM-PR card to store its configuration on the PXM45 hard disk by entering the boot
config command as follows:
Router>boot config e:auto_config_slot#
Note Step 7 is required. When switchover occurs, the secondary RPM-PR card must be able to load
the configuration from the auto_config file on the PXM45 hard disk. If this command is already
configured in the startup configuration file, you do not need to repeat this command.
Step 8 Enter the copy run start command on the primary RPM-PR card to save the configuration changes.
Router> copy run start
Step 9 To display the redundancy relationship between all cards in the switch, enter the dspred command.