Specifications

10-13
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
Step 18 Enter the dspcds command and verify that the standby PXM1E-8-155 comes up in the standby-ready
state.
Step 19 At the active PXM1E-8-155, enter the commithw <Slot Number> 1 command to commit the hardware
upgrade on the switch. Replace <Slot Number> with the slot number for the active PXM1E-8-155 card.
In a Cisco MGX 8850 (PXM1E) switch, the <Slot Number> parameter can be 7 or 8. In a Cisco MGX
8830 switch, the <Slot Number> parameter can be 1 or 2. The number 1 specifies that this card has been
upgraded from a PXM1E-4-155 to a PXM1E-8-155.
In the following example, the user commits the hardware upgrade on the PXM1E-8-155 in slot 2 of an
MGX 8830 switch.
pxm1e.2.PXM.a > commithw 2 1
Step 20 Enter the dspcd <slotnumber> command to verify that the reserved front card is a PXM1E-8-155.
Replace <slotnumber> with the slot number of the active PXM1E card.
Step 21 If you have APS lines on the installed PXM1E-8-155 card, enter the dspaps command to verify that the
APS lines are OK and clear of alarms.
Non-gracefully Upgrading a Single PXM1E-4-155 to a PXM1E-8-155
A nongraceful upgrade is a software or hardware upgrade that interrupts some or all established calls.
When you perform a nongraceful PXM1E upgrade, all calls are interrupted. To non-gracefully replace a
single PXM1E-4-155 to a PXM1E-8-155, use the following procedure:
Step 1 Enter the dspcds command to verify that the current PXM1E-4-155 card is running Release 4 or later.
If the card is running a release that is prior to Release 4, you need upgrade the entire switch to Release
4 or later as described in Appendix A, “Downloading and Installing Software Upgrades.”
Step 2 Enter the saveallcnf command to save the existing configuration on the current PXM1E-4-155 card, and
FTP that configuration file to a remote location. This ensures that you will be able to go back to your old
switch configuration if you need to.
Step 3 Physically remove the PXM1E-4-155 card set (front and back cards) from the switch on which you are
performing the upgrade, and replace it with the PXM1E-8-155 card set.
Step 4 If you are installing an SFP-8-155 back card, insert FRU connectors into the appropriate ports on the
back card before installing new card set into the switch.
If you are installing an MCC-8-155 back card, skip Step 4 and move on to Step 5.
Note Cisco recommends that you install FRUs on the PXM1E-8-155 ports that correspond to the
configured ports on the removed standby PXM1E-4-155 back card. For example, if you had a
physical SC line connected to port 1 on the removed standby PXM1E-4-155 back card, you need
to install a FRU on port 1 of the installed SFP-8-155 back card.
Step 5 Insert the PXM1E-8-155 card set into the appropriate slots. Insert the front card first; then insert the back
cards.
Step 6 Ensure that the new back cards are firmly screwed into the chassis by gently tugging on them. If one of
the standby back cards feels loose, the new back cards may not be seated properly.
Step 7 Remove any cables connected to the removed PXM1E-4-155 back card. If there were no cables attached
to the removed standby PXM1E-4-155 back card, proceed to Step 8.