Specifications

8-10
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 8 Switch Maintenance Procedures
Decommissioning an AXSM Slot
The configuration for AXSM cards is stored on the PXM45. The switch will automatically configure a
replacement AXSM/B card and start it up. If the card is a standalone card, the card will start up as an
active card. If the card is part of a redundant pair, the card will start up in standby mode.
After the replacement AXSM/B card starts, enter the dspcd or dsprev command to verify that the
AXSM/B card is using the correct boot software version.
Note The switch automatically selects and loads the correct runtime software for the AXSM based on the
configuration for that slot. The switch does not automatically burn boot code for an AXSM. For
instructions on upgrading boot code, see Appendix A, “Downloading and Installing Software
Upgrades.”
Note To replace one type of AXSM front card with another type of AXSM/B card, you must delete all connections,
partitions, and ports, and then down all lines. This is called “decommissioning the slot,” and is required, for
example, when replacing an AXSM-16-T3E3 with an AXSM-8-155/B. For more information on
decommissioning an AXSM slot, see the next section.
Decommissioning an AXSM Slot
When an AXSM card is installed and configured, the configuration is associated with a specific slot
number and stored on the PXM45 card. If you replace the AXSM with another card of the same type,
the new card will start operating with the established configuration. Any configuration which has been
used previously on that card will be discarded, because the configuration is assigned to the slot, not the
physical card.
If you want to use a previously configured AXSM slot for a different type of AXSM card, you must first
decommission the slot to remove the existing configuration. Otherwise, the switch will attempt to run
the old configuration on the new card, and the new card will not operate correctly.
Note If you enter the cnfpnportsig command to change default port values, you must run the delpnport
command to delete the port from the PXM45. If you do not run delpnport on the PXM45, the port will
remain in a provisioning state on the PXM45.
To decommission a slot, you need to remove the existing connections, partitions, and ports as described
below.
Step 1 Establish a configuration session using a user name with CISCO_GP privileges.
Step 2 Use the cc command to select the AXSM slot you want to decommission.
Note The AXSM card installed in the slot you are decommissioning must be the same type of card for
which the slot was configured. You cannot decommission a slot with an AXSM card type that
does not match the configured card type.
Step 3 To display the connections you need to delete, enter the following command:
mgx8850a.10.AXSM.a > dspcons