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
After you replace the PXM45 card, enter the dspcd or dsprev command to view the boot software
version. If the boot software version is not correct for your switch, upgrade it as described in
Appendix A, “Downloading and Installing Software Upgrades.”
Note When replacing PXM45 cards with PXM45/C cards, the switch performs the same nativity check
described earlier in this chapter.
Replacing AXSM Cards with AXSM/B Cards
You can replace AXSM cards with AXSM/B cards of the same type. For example, you can replace an
AXSM-4-622 with and AXSM-4-622/B. The following sections describe these upgrade scenarios:
• Upgrading a standalone AXSM
• Upgrading an AXSM in a redundant card set
Upgrading a Standalone AXSM
You can upgrade a standalone AXSM, but all communications are interrupted during the upgrade.
Tip To avoid interrupting communications, consider installing a redundant AXSM card. You can then
upgrade the AXSM using the procedure for a redundant card set.
To upgrade a standalone AXSM, use 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 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 active mode.
Step 3 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.”
If intracard APS is not configured on the card before the upgrade, the card will function as an AXSM/B
card.