1. Download the new operational code from IBM web site
2. Unzip the zipped file in a directory (without any other files) on a tftp server (in this example the directory is "tftp_root"/ibm)
3. Transfer the files to the non-active ("IMAGE - AVAIL") bank of the IBM router and set it as boot bank for the next boot.

ibm2216 Boot config>tftp get load modules
+------ BankA -----------+--------- Description ----------+------ Date -------+
| IMAGE - ACTIVE         |                                | 25 Jun 1999 09:01 |
| CONFIG 1 - AVAIL       |                                | 26 Aug 1999 12:45 |
| CONFIG 2 - AVAIL       |                                | 26 Aug 1999 13:03 |
| CONFIG 3 - AVAIL       |                                | 26 Aug 1999 14:48 |
| CONFIG 4 - ACTIVE  *   |                                | 27 Aug 1999 15:20 |
+------ BankB -----------+--------- Description ----------+------ Date -------+
| IMAGE - AVAIL          |                                | 25 Jun 1999 09:05 |
| CONFIG 1 - NONE        |                                |                   |
| CONFIG 2 - NONE        |                                |                   |
| CONFIG 3 - NONE        |                                |                   |
| CONFIG 4 - NONE        |                                |                   |
+------------------------+--------------------------------+-------------------+
  * - Last Used Config      L - Config File is Locked

 Auto-boot mode is enabled.   Fast-boot mode is disabled.

Specify the server IP address (dotted decimal): : [1.2.3.4] 192.168.73.2
Specify the remote modules directory: : (/u/bin) ibm
Select the destination bank:  (A, B): [A] b
TFTP SW load modules
  get:   ibm/LML.ld
  from:  192.168.73.2
  to:    bank B.
TFTP transfer of /hd0/sys1/LML.ld complete, size=12150 status: OK
TFTP transfer of /hd0/sys1/aib100d0.ld complete, size=364786 status: OK
TFTP transfer of /hd0/sys1/jdc.ld complete, size=75406 status: OK
TFTP transfer of /hd0/sys1/aib18110.ld complete, size=38678 status: OK
TFTP transfer of /hd0/sys1/aib10030.ld complete, size=84910 status: OK
TFTP transfer of /hd0/sys1/aib10110.ld complete, size=25506 status: OK
TFTP transfer of /hd0/sys1/aib10040.ld complete, size=81134 status: OK
TFTP transfer of /hd0/sys1/aib10020.ld complete, size=80694 status: OK
TFTP transfer of /hd0/sys1/pchanfla.ld complete, size=67894 status: OK
TFTP transfer of /hd0/sys1/diags.ld complete, size=450879 status: OK
TFTP transfer of /hd0/sys1/Firm.ld complete, size=524774 status: OK
TFTP transfer of /hd0/sys1/deepisdn.ld complete, size=12843 status: OK
TFTP transfer of /hd0/sys1/isdn8pri.ld complete, size=411622 status: OK
TFTP transfer of /hd0/sys1/ccflash.ld complete, size=131350 status: OK
TFTP transfer of /hd0/sys1/escflash.ld complete, size=8938 status: OK
TFTP transfer of /hd0/sys1/pcaflash.ld complete, size=66022 status: OK
TFTP transfer of /hd0/sys1/escMcode.ld complete, size=209846 status: OK
TFTP transfer of /hd0/sys1/pcaMcode.ld complete, size=174375 status: OK
TFTP transfer of /hd0/sys1/os.ld complete, size=733953 status: OK
TFTP transfer of /hd0/sys1/snmp.ld complete, size=244047 status: OK
TFTP transfer of /hd0/sys1/sysext.ld complete, size=70489 status: OK
TFTP transfer of /hd0/sys1/router.ld complete, size=9089587 status: OK
TFTP transfer of /hd0/sys1/nstation.ld complete, size=531605 status: OK
TFTP transfer of /hd0/sys1/appn.ld complete, size=2941234 status: OK
TFTP transfer of /hd0/sys1/LMX.ld complete, size=1082 status: OK

Operation completed successfully.
ibm2216 Boot config>set boot
+------ BankA -----------+--------- Description ----------+------ Date -------+
| IMAGE - ACTIVE         |                                | 25 Jun 1999 09:01 |
| CONFIG 1 - AVAIL       |                                | 26 Aug 1999 12:45 |
| CONFIG 2 - AVAIL       |                                | 26 Aug 1999 13:03 |
| CONFIG 3 - AVAIL       |                                | 26 Aug 1999 14:48 |
| CONFIG 4 - ACTIVE  *   |                                | 27 Aug 1999 15:20 |
+------ BankB -----------+--------- Description ----------+------ Date -------+
| IMAGE - AVAIL          |                                | 02 Sep 1999 12:48 |
| CONFIG 1 - NONE        |                                |                   |
| CONFIG 2 - NONE        |                                |                   |
| CONFIG 3 - NONE        |                                |                   |
| CONFIG 4 - NONE        |                                |                   |
+------------------------+--------------------------------+-------------------+
  * - Last Used Config      L - Config File is Locked

 Auto-boot mode is enabled.   Fast-boot mode is disabled.

Select the source bank:  (A, B): [A] b
Select the source configuration:  (1, 2, 3, 4): [1] 
Select the duration to use for booting:  (once, always): [always] 
Set SW to boot using bank B and configuration 1, always.

Operation completed successfully.
ibm2216 Boot config> Process 6 has been redirected
ibm2216 *