Specifications
A-7
Cisco MGX 8800/8900 Series Software Configuration Guide
Release 5.1, Part Number OL-6482-01, Rev. A0, January 25, 2005
Appendix A Downloading and Installing Software Upgrades
Quickstart Procedures for Software Upgrades
Non-Graceful PXM Boot Upgrades
Non-graceful upgrades disrupt all switch traffic and are usually used in lab installations where the use
of standalone cards provides no opportunity for a graceful upgrade. The quickstart procedure provides
an overview and quick reference for those who have already performed ungraceful upgrades on the
switch.
Note Avoid making configuration changes while upgrading PXM software. Configuration changes can be lost
when the PXM is reset during the upgrade.
Graceful PXM and Service Module Runtime Software Upgrades
When performed properly, graceful upgrades have minimal impact on connections in progress and do
not interrupt any established connections.
This quickstart procedure applies to PXM1E, PXM45 and to all service module cards except the RPM
family of cards. The quickstart procedure provides more detail, but the overall procedure is as follows:
1. Load the new software on the standby PXM or service module.
2. Make the standby card active.
3. Load the new software on the formerly active (now standby) card.
Command Purpose
Step 1
ftp Copy the boot and runtime files you want to use to the switch.
See the “Copying Software Files to the Switch” section later in
this appendix.
Step 2
username
password
Establish a CLI session with the active PXM card using the CP
port on the PXM-UI-S3 or PXM-UI-S3/B back card and a user
name with CISCO_GP privileges.
Step 3
saveallcnf This optional step saves the current configuration to the hard disk.
See the “Saving a Configuration” section in Chapter 9, “Switch
Operating Procedures.”
Step 4
burnboot <slot> <revision>
dspcd <slot>
Burn the boot software on the standalone PXM card by specifying
the appropriate slot number. For example:
M8850_LA.7.PXM.a > burnboot 7 4.0(0.201)
Caution If the card is removed or reset, or if switch power is
interrupted during the boot software upgrade, the
upgrade will not complete, the card will not operate,
and the card must be returned to Cisco for repair.
See the “Upgrading PXM Boot Software from Release 3.0.10 and
Later” section, which appears later in this appendix.