Specifications

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Cisco MGX 8800/8900 Series Software Configuration Guide
Release 5.1, Part Number OL-6482-01, Rev. A0, January 25, 2005
Chapter 10 Switch Maintenance Procedures
Replacing Cards
If intracard APS is configured, the card will operate as an AXSM card. To upgrade to the AXSM/B
operating mode, you must enter the enableaxsmbaps command at the PXM. Once the AXSM/B starts
operating in AXSM/B mode, the card can no longer return to AXSM operating mode.
Upgrading an AXSM in a Redundant Card Set
When upgrading a redundant AXSM card set, you can complete the upgrade without interrupting
established calls by using the following procedure.
Step 1 Determine if you need to upgrade the AXSM runtime software before or after the hardware upgrade. For
information on the runtime software required, refer to the Release Notes for Cisco MGX 8850
(PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830 Switches, Release 5.1.00 or the Release
Notes for the Cisco MGX 8880 Media Gateway, Release 5.0.02.
Step 2 Use the switchredcd command as necessary so that the AXSM card to be replaced is operating in
standby mode.
Step 3 Replace the standby AXSM with the AXSM/B card.
Note When replacing OC-3, OC-12, and OC-48 versions of the AXSM, you might need to change the back
cards to /B versions.
The configuration for AXSM cards is stored on the PXM45. The switch will configure the new AXSM/B
card and bring it up in standby mode. In standby mode, the card will operate as an AXSM/A card.
Step 4 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.”
Step 5 If you need to replace both AXSM cards in the redundant pair, repeat Steps 1 through 4 for the other card.
Step 6 When both cards have been upgraded to AXSM/B cards, enter the enableaxsmbaps command at the
PXM prompt.
This step causes the redundant AXSM/B cards to stop emulating AXSM cards and operate as AXSM/B
cards. Once the AXSM/B cards start operating in as AXSM/B card, the cards can no longer return to
AXSM operating mode.
Replacing Service Modules
The procedure you use for replacing a service module depends on whether you are replacing the service
module with the same type of service module or with a different type. The following sections describe
the following procedures:
• Replacing Service Modules with the Same Type of Service Module