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C-3
Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Appendix C Firmware Upgrade and Downgrade Procedures
Finding the Right Procedure
Finding the Right Procedure
To find which procedure to use, perform the following steps.
Step 1 Determine whether the desired procedure is an upgrade or a downgrade, and whether the MGX has a
1-core card set or a 2-core card set.
Using this information look at the table headings to determine which table to use.
For example, to perform a graceful upgrade on a 2-core card set, use Table F.
Step 2 Look down the left side of the table to select the row for the appropriate from release.
Step 3 Look across the top of the table to select the column for the appropriate to release.
Step 4 Read the procedure number from the selected cell (position) in the table.
Step 5 Proceed to the appropriate procedure in the “Standard Upgrade and Downgrade Procedures” section or
the “Graceful Upgrade and Downgrade Procedures” section.
Step 6 Perform the procedure.
Standard Upgrade and Downgrade Procedures
These procedures must be performed at a UNIX workstation that has an operational data path to the
MGX 8220. The workstation must be able to send MGX 8220 CLI commands and UNIX Trivial File
Transfer Protocol (TFTP) downloads.
A Cisco WAN Manager (CWM) workstation attached to a BPX is one method in which MGX 8220
commands and TFTP commands can be run on the MGX 8220 using an in-band channel. The
workstation can also be attached to the MGX 8220 through an Ethernet LAN, or through a TCP/IP
connection on the control port on the ASC.
Table C-2 Graceful Firmware Upgrade/Downgrade Version Matrix
E
Graceful Upgrade
1 Core Card Set
F
Graceful Upgrade
2 Core Card Set
G
Graceful Downgrade
1 Core Card Set
H
Graceful Downgrade
2 Core Card Set
To
2.x
To
3.x
To
4.x
To
5.x
To
2.x
To
3.x
To
4.x
To
5.x
To
2.x
To
3.x
To
5.x
To
4.x
To
2.x
To
3.x
To
4.x
To
5.x
From Rel. 2.x 13 ——— 15 — 15 via
4.x
14 ——— 16 ———
From Rel. 3.x — 17 —— —19 21 via
4.x
— 18 —— —20 ——
From Rel. 4.x ——22 22 ——23 23 ——24 24 ——25 25
From Rel. 5.x ——22 22 ——23 23 ——24 24 ——25 25