martedì 20 marzo 2012

6500 Upgrade with Redundant Supervisor

In this section, you are presented with the information to upgrade the software images on a Catalyst 6500 Series Switch with redundant Supervisor Engines that run in Native mode.
It is recommended that a console connection be available for both Supervisor Engines for this procedure. The console port on the active Supervisor Engine is active and that on the standby Supervisor Engine is inactive.
Note: The images that this document uses are for example purposes only. Replace the images with the images that you use in your switch environment.
Complete these steps in order to upgrade the Cisco IOS software images on the active and standby Supervisor Engines:
1.     Establish a console connection to the active Supervisor Engine and verify that the image version runs on the Supervisor Engines.
Cat-6509#show version
Cisco Internetwork Operating System Software
IOS (tm) s3223_rp Software (s3223_rp-IPBASEK9-M),
Version 12.2(18)SXF, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Fri 09-Sep-05 21:36 by ccai
Image text-base: 0x40101040, data-base: 0x42CC0000

ROM: System Bootstrap, Version 12.2(17r)SX3, RELEASE SOFTWARE (fc1)
BOOTLDR: s3223_rp Software (s3223_rp-IPBASEK9-M),
Version 12.2(18)SXF, RELEASE SOFTWARE (fc1)
Note: If you try to establish a console connection to the standby Supervisor Engine, this message displays:
Cat-6509-sdby>
Standby console disabled
2.     Check the status of the Supervisor Engine modules.
Cat-6509#show module
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  5    9  Supervisor Engine 32 8GE (Active)      WS-SUP32-GE-3B     SAD084401JD
  6    9  Supervisor Engine 32 8GE (Hot)         WS-SUP32-GE-3B     SAD084401GG
 
!--- The active Supervisor Engine is in slot 5 and standby is in slot 6.

  7   48  48 port 10/100 mb RJ45                 WS-X6348-RJ-45     SAL0618006V

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  5  0030.f273.a008 to 0030.f273.a013   0.406 12.2(18r)SX2 12.2(18)SXF  Ok
  6  0030.f273.9f90 to 0030.f273.9f9b   0.406 12.2(18r)SX2 12.2(18)SXF  Ok
  7  0009.1264.b648 to 0009.1264.b677   6.1   5.4(2)       8.5(0.46)RFW Ok

!--- Output suppressed.

The module status of the standby Supervisor Engine in the show module command output is different for the different redundancy modes for Native IOS:
o  RPR—Status shows Cold.
Cold redundancy refers to the degree of resiliency that a redundant system traditionally provides. A redundant system is cold when no state information is maintained between the backup or standby system and the system it protects.
o  RPR+—Status shows Warm.
Warm redundancy refers to a degree of resiliency beyond the cold standby system. In this case, the redundant system is partially prepared. However, the system does not have all the state information that the primary system knows for an immediate take-over. Some additional information must be determined or gleaned from the traffic flow or the peer network devices to handle packet forwarding.
o  SSO—Status shows Hot.
Hot redundancy refers to a degree of resiliency where the redundant system is fully prepared to handle the traffic of the primary system. Substantial state information is saved, so the network service is continuous, and the effect on traffic flow is minimal or nil in the case of a failover.
3.     Verify the redundancy mode status from the active Supervisor Engine.
Cat-6509#show redundancy
Redundant System Information :
------------------------------
       Available system uptime = 8 hours, 32 minutes
Switchovers system experienced = 0
              Standby failures = 0
        Last switchover reason = none

                 Hardware Mode = Duplex
    Configured Redundancy Mode = sso
     Operating Redundancy Mode = sso
              Maintenance Mode = Disabled
                Communications = Up

Current Processor Information :
-------------------------------
               Active Location = slot 5
        Current Software state = ACTIVE
       Uptime in current state = 2 hours, 14 minutes
                 Image Version = Cisco Internetwork Operating System Software
IOS (tm) s3223_rp Software (s3223_rp-IPBASEK9-M),
Version 12.2(18)SXF, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Fri 09-Sep-05 21:36 by ccai
                          BOOT = disk0:s3223-ipbasek9-mz.122-18.SXF.bin,12;
                       BOOTLDR =
        Configuration register = 0x2102

Peer Processor Information :
----------------------------
              Standby Location = slot 6
        Current Software state = STANDBY HOT
       Uptime in current state = 31 minutes
                 Image Version = Cisco Internetwork Operating System Software
IOS (tm) s3223_rp Software (s3223_rp-IPBASEK9-M),
Version 12.2(18)SXF, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2005 by cisco Systems, Inc.
Compiled Fri 09-Sep-05 21:36 by ccai
                          BOOT = disk0:s3223-ipbasek9-mz.122-18.SXF.bin,12;
                       BOOTLDR =
        Configuration register = 0x2102
Cat-6509#
Note: The default redundancy mode of operation with Supervisor Engine 32 is SSO with same image versions and RPR if different image versions are installed.
4.     Verify the boot variables for both of the Supervisor Engines.
Cat-6509#show bootvar
BOOT variable = disk0:s3223-ipbasek9-mz.122-18.SXF.bin,12;
CONFIG_FILE variable does not exist
BOOTLDR variable =
Configuration register is 0x2102

Standby is up
Standby has 983040K/65536K bytes of memory.

Standby BOOT variable = disk0:s3223-ipbasek9-mz.122-18.SXF.bin,12;
Standby CONFIG_FILE variable does not exist
Standby BOOTLDR variable =
Standby Configuration register is 0x2102
5.     Log your console session as a best practice.
The log enables you to capture a record of the session and compare the log to the steps in this document, if you need to troubleshoot.
For example, in HyperTerminal, choose Transfer > Capture Text in order to log a console session.
6.     Issue the copy start tftp command in order to back up the configuration.
If you back up the configuration, the file can serve as a reference after the upgrade. Refer to Managing Software Images and Working with Configuration Files on Catalyst Switches for more information on the use of the copy start tftp command to back up configuration files.
7.     Verify that the Cisco IOS image (s3223*) required for the upgrade is on either Supervisor Engine bootflash (sup-bootdisk: and slavesup-bootdisk:), or on the CompactFlash card (disk0: and slavedisk0:) of both the Supervisor Engines.






Cat-6509#dir disk0:
Directory of disk0:/

1  -rw-    27267012  Oct 12 2006 21:28:42 +00:00  s3223-ipbasek9-mz.122-18.SXF.bin
2  -rw-    27966916  Oct 12 2006 21:46:16 +00:00  s3223-ipbasek9-mz.122-18.SXF6.bin

!--- This is the CompactFlash card on the active Supervisor Engine.
!--- This is the Cisco IOS software image (s3223*) release for this upgrade.

63971328 bytes total (8736768 bytes free)
Cat-6509#
Cat-6509#dir slavedisk0:
Directory of slavedisk0:/

1  -rw-    27267012  Oct 12 2006 21:36:22 +00:00  s3223-ipbasek9-mz.122-18.SXF.bin
2  -rw-    27966916  Oct 12 2006 21:51:20 +00:00  s3223-ipbasek9-mz.122-18.SXF6.bin

!--- This is the CompactFlash card on the standby Supervisor Engine.
!--- This is the Cisco IOS software image (s3223*) release for this upgrade.

63971328 bytes total (8736768 bytes free)
Cat-6509#
If you do not have the Cisco IOS image for upgrade on either Supervisor bootflash (sup-bootdisk: and slavesup-bootdisk:) or on CompactFlash card (disk0: and slavedisk0:), go to step 8. If you have the Cisco IOS image installed, go to step 9.
8.     Complete this step only if the Cisco IOS Software image (s3223*) is missing from either Supervisor Engine bootflash (sup-bootdisk: and slavesup-bootdisk:) or on CompactFlash card (disk0: and slavedisk0:). Step 7 determines the need for this step.
Note: You might need to format the CompactFlash if it has never been used before, or if it was formatted with use of the CatOS Software algorithm. In order to format CompactFlash card on a Supervisor Engine 32, issue the format disk0: command. You can also free up space as necessary on the Flash devices. Issue the delete sup-bootdisk: filename or delete disk0: filename command in order to delete the file.
Issue the copy tftp sup-bootdisk: command first, then the copy tftp slavesup-bootdisk: or copy sup-bootdisk: slavesup-bootdisk: command in order to download the image to the Supervisor Engine bootflashes. Or, issue the copy tftp disk0: command first, then the copy tftp slavedisk0: or copy disk0: slavedisk0: command in order to download the image to the CompactFlash cards.
Cat-6509#copy tftp disk0:
Address or name of remote host []? 10.1.1.2
Source filename []? s3223-ipbasek9-mz.122-18.SXF6.bin
Destination filename [s3223-ipbasek9-mz.122-18.SXF6.bin]?
Accessing tftp://10.1.1.2/s3223-ipbasek9-mz.122-18.SXF6.bin...
Loading s3223-ipbasek9-mz.122-18.SXF6.bin from 10.1.1.2
(via FastEthernet1/1):
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 27966916 bytes]
27966916 bytes copied in 222.684 secs (125590 bytes/sec)
Verifying compressed IOS image checksum...
Verified compressed IOS image checksum for disk0:
/s3223-ipbasek9-mz.122-18.SXF6.bin
Cat-6509#
Cat-6509#copy tftp slavedisk0:
Address or name of remote host []? 10.1.1.2
Source filename []? s3223-ipbasek9-mz.122-18.SXF6.bin
Destination filename [s3223-ipbasek9-mz.122-18.SXF6.bin]?
Accessing tftp://10.1.1.2/s3223-ipbasek9-mz.122-18.SXF6.bin...
Loading s3223-ipbasek9-mz.122-18.SXF6.bin from 10.1.1.2
(via FastEthernet1/1):
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK - 27966916 bytes]
27966916 bytes copied in 275.427 secs (101540 bytes/sec)
Verifying compressed IOS image checksum...
Verified compressed IOS image checksum for slavedisk0:
/s3223-ipbasek9-mz.122-18.SXF6.bin
Cat-6509#
9.     Configure the boot statement to boot the new image and save the configuration.
Cat-6509#show run
Building configuration...

Current configuration : 4933 bytes
!
upgrade fpd auto
version 12.2
service timestamps debug uptime
service timestamps log datetime msec
no service password-encryption
service counters max age 5
!
hostname Cat-6509
!
boot system disk0:s3223-ipbasek9-mz.122-18.SXF.bin

!--- This is the current boot statement.

!
no aaa new-model
ip subnet-zero

!--- Output suppressed.

Cat-6509#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Cat-6509(config)#no boot system disk0:s3223-ipbasek9-mz.122-18.SXF.bin

!--- This removes the current boot statement.

Cat-6509(config)#boot system disk0:s3223-ipbasek9-mz.122-18.SXF6.bin

!--- This modifies the boot statement to boot from the new image.

Cat-6509(config)#^Z
Cat-6509#
Cat-6509#copy run start

!--- This also triggers a manual synchronization of
!--- startup configuration on the standby Supervisor Engine.

Destination filename [startup-config]?
Building configuration...

*Oct 13 03:21:05.331: %PFINIT-SP-5-CONFIG_SYNC:
Sync'ing the startup configuration to the standby Router. [OK]
Cat-6509#
Cat-6509#show bootvar

!--- This verifies the modified boot statements.

BOOT variable = disk0:s3223-ipbasek9-mz.122-18.SXF6.bin,12;
CONFIG_FILE variable does not exist
BOOTLDR variable =
Configuration register is 0x2102

Standby is up
Standby has 983040K/65536K bytes of memory.

Standby BOOT variable = disk0:s3223-ipbasek9-mz.122-18.SXF6.bin,12;
Standby CONFIG_FILE variable does not exist
Standby BOOTLDR variable =
Standby Configuration register is 0x2102
Note: The configuration register in the startup-config must be set to autoboot (0x2102).
10.   Reset the standby Supervisor Engine.
Note: Before you reset the standby Supervisor Engine, make sure you wait long enough to ensure that all configuration synchronization changes have completed.
Cat-6509#hw-module module 6 reset

!--- This resets the standby Supervisor Engine in slot 6.

Proceed with reset of standby supervisor? [confirm]
% reset issued for standby supervisor
Cat-6509#
*Oct 13 03:21:50.507: %OIR-SP-3-PWRCYCLE: Card in module 6,
is being power-cycled (Module reset)
*Oct 13 03:21:50.895: %PFREDUN-SP-6-ACTIVE: Standby processor
removed or reloaded, changing to Simplex mode
*Oct 13 03:24:27.163: %PFREDUN-SP-4-VERSION_MISMATCH:
Defaulting to RPR mode (Different software versions)

!--- Redundancy mode changes to RPR during software upgrade.

*Oct 13 03:24:28.183: %PFREDUN-SP-6-ACTIVE: Standby initializing for RPR mode
*Oct 13 03:24:28.467: %SYS-SP-3-LOGGER_FLUSHED: System was paused for 00:00:00
to ensure console debugging output.
11.   Wait for the standby Supervisor Engine to come online and synchronize the configuration.
12.*Oct 13 03:24:28.599: %PFINIT-SP-5-CONFIG_SYNC:
13.Sync'ing the startup configuration to the standby Router.
14.*Oct 13 03:24:30.883: %DIAG-SP-6-RUN_MINIMUM: Module 6:
15.Running Minimal Diagnostics...
16.*Oct 13 03:24:33.486: %DIAG-SP-6-DIAG_OK: Module 6:
17.Passed Online Diagnostics
18.*Oct 13 03:24:33.722: %OIR-SP-6-INSCARD: Card inserted in slot 6,
19.interfaces are now online
Cat-6509#
20.   Verify the redundancy status.
Note: In order to run in RPR+ or SSO redundancy mode, image versions must be the same on the standby and active Supervisor Engines. In these redundancy modes, the active Supervisor Engine checks the image version of the standby Supervisor Engine when the standby Supervisor Engine comes online. If the image on the standby Supervisor Engine does not match the image on the active Supervisor Engine, the software sets the redundancy mode to RPR while a software upgrade is performed, and sets it back to SSO when the software upgrade is complete.
Cat-6509#show module
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  5    9  Supervisor Engine 32 8GE (Active)      WS-SUP32-GE-3B     SAD084401JD
  6    9  Supervisor Engine 32 8GE (Cold)        WS-SUP32-GE-3B     SAD084401GG
  7   48  48 port 10/100 mb RJ45                 WS-X6348-RJ-45     SAL0618006V

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  5  0030.f273.a008 to 0030.f273.a013   0.406 12.2(18r)SX2 12.2(18)SXF  Ok
  6  0030.f273.9f90 to 0030.f273.9f9b   0.406 12.2(18r)SX2 12.2(18)SXF6 Ok
  7  0009.1264.b648 to 0009.1264.b677   6.1   5.4(2)       8.5(0.46)RFW Ok

!--- Output suppressed.

Cat-6509#show redundancy states
       my state = 13 -ACTIVE
     peer state = 4  -STANDBY COLD
           Mode = Duplex
           Unit = Primary
        Unit ID = 5
Redundancy Mode (Operational) = rpr
Redundancy Mode (Configured)  = sso
Redundancy State              = rpr

!--- Output suppressed.
!--- This verifies that the operational redundancy mode has
!--- changed to RPR during the software upgrade.




21.   Manually switchover to the standby Supervisor Engine in slot 6.
Cat-6509#redundancy force-switchover

!--- This reloads the active unit and forces switchover to standby [confirm].

Preparing for switchover..
*Oct 13 03:50:38.167: %SYS-SP-3-LOGGER_FLUSHING:
System pausing to ensure console debugging output.
*Oct 13 03:50:38.167: %OIR-SP-6-CONSOLE:
Changing console ownership to switch processor

!--- Output suppressed.

MAC based EOBC installed

00:00:04: %SYS-3-LOGGER_FLUSHING: System pausing to ensure
console debugging output.
00:00:04: %PFREDUN-6-STANDBY: Initializing as STANDBY processor

!--- This Supervisor Engine is initialized as standby.

00:00:05: %SYS-3-LOGGER_FLUSHING: System pausing to ensure
console debugging output.
00:00:04: %SYS-3-LOGGER_FLUSHED: System was paused for 00:00:00
to ensure console debugging output.

!--- Output suppressed.

Press RETURN to get started!

00:01:21: STDBY: RP: Currently running ROMMON from S (Gold) region
*Oct 13 03:54:38.319: %SYS-STDBY-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) s3223_rp Software (s3223_rp-IPBASEK9-M),
Version 12.2(18)SXF6, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Mon 18-Sep-06 19:43 by tinhuang
*Oct 13 03:54:38.343: %SYS-STDBY-6-BOOTTIME:
Time taken to reboot after reload =  240 seco
Cat-6509-sdby>
Standby console disabled

!--- The Supervisor Engine in slot 5 now becomes the standby.

The old active Supervisor Engine in slot 5 reboots with the new image and becomes the standby Supervisor Engine.
Note: Establish a console connection to the Supervisor Engine in slot 6 simultaneously when the switchover is initiated from Supervisor Engine in slot 5.
Note: In middle of the software upgrade procedure, the operational redundancy mode is RPR. This is evident from the show redundancy states command output shown in step 12. In RPR redundancy, during switchover, all switching modules are powered on again. So there is be a few minutes of downtime. During normal switchovers, if the operational redundancy is SSO, the installed switching modules are not reloaded, as both the startup and running config are synchronized continually from active to standby supervisor engine. The new active supervisor engine uses the current configuration.
22.   Monitor the console messages on Supervisor Engine in slot 6.

!--- Output suppressed.

00:01:21: %PFREDUN-SP-STDBY-6-STANDBY: Ready for RPR mode
00:01:22: %SYS-SP-STDBY-3-LOGGER_FLUSHED: System was paused for 00:00:00
to ensure console debugging output.
00:27:23: %PFREDUN-SP-STDBY-6-ACTIVE: Initializing as ACTIVE processor

!--- The Supervisor Engine is initialized as active.

00:27:23: %SYS-SP-STDBY-3-LOGGER_FLUSHED: System was paused for 00:00:00
to ensure console debugging output.

!--- Output suppressed.

00:27:48: %SYS-SP-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) s3223_sp Software (s3223_sp-IPBASEK9-M),
Version 12.2(18)SXF6, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Mon 18-Sep-06 19:43 by tinhuang
00:27:48: SP: Currently running ROMMON from S (Gold) region
*Oct 13 03:51:07.331: %OIR-SP-6-INSPS: Power supply inserted in slot 1
*Oct 13 03:51:07.387: %C6KPWR-SP-4-PSOK: power supply 1 turned on.
*Oct 13 03:51:09.907: %C6KENV-SP-4-FANHIOUTPUT:
Version 2 high-output fan-tray is in effect
*Oct 13 03:51:13.419: %OIR-SP-6-INSCARD:
Card inserted in slot 6, interfaces are now online
Cat-6509>

!--- The Supervisor Engine in slot 6 now becomes the active.

23.   Verify the status of the modules from the active Supervisor Engine.

!--- Output suppressed.

*Oct 13 03:53:46.531: %PFREDUN-SP-6-ACTIVE: Standby initializing for SSO mode
*Oct 13 03:53:46.703: %SYS-SP-3-LOGGER_FLUSHED: System was paused for 00:00:00
to ensure console debugging output.
*Oct 13 03:53:48.199: %PFINIT-SP-5-CONFIG_SYNC: Sync'ing the startup configuration
to the standby Router.
*Oct 13 03:54:22.919: %DIAG-SP-6-RUN_MINIMUM: Module 5:
Running Minimal Diagnostics...
*Oct 13 03:54:25.547: %DIAG-SP-6-DIAG_OK: Module 5:
Passed Online Diagnostics
*Oct 13 03:54:26.299: %OIR-SP-6-INSCARD: Card inserted in slot 5,
interfaces are now online.

!--- Output suppressed.

Cat-6509>enable
Cat-6509#show module
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  5    9  Supervisor Engine 32 8GE (Hot)         WS-SUP32-GE-3B     SAD084401JD
  6    9  Supervisor Engine 32 8GE (Active)      WS-SUP32-GE-3B     SAD084401GG

!--- The active Supervisor Engine is in slot 6 and standby is in slot 5.
 
  7   48  48 port 10/100 mb RJ45                 WS-X6348-RJ-45     SAL0618006V

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  5  0030.f273.a008 to 0030.f273.a013   0.406 12.2(18r)SX2 12.2(18)SXF6 Ok
  6  0030.f273.9f90 to 0030.f273.9f9b   0.406 12.2(18r)SX2 12.2(18)SXF6 Ok
  7  0009.1264.b648 to 0009.1264.b677   6.1   5.4(2)       8.5(0.46)RFW Ok

!--- Output suppressed.

24.   Verify the redundancy status to see if the system performs as expected.
Cat-6509#show redundancy
Redundant System Information :
------------------------------
       Available system uptime = 10 hours, 12 minutes
Switchovers system experienced = 1
              Standby failures = 1
        Last switchover reason = user initiated

                 Hardware Mode = Duplex
    Configured Redundancy Mode = sso
     Operating Redundancy Mode = sso

!--- This verifies that software has set the redundancy mode
!--- back to SSO after the software upgrade.

              Maintenance Mode = Disabled
                Communications = Up

Current Processor Information :
-------------------------------
               Active Location = slot 6
        Current Software state = ACTIVE
       Uptime in current state = 7 minutes
Image Version = Cisco Internetwork Operating System Software
IOS (tm) s3223_rp Software (s3223_rp-IPBASEK9-M), Version 12.2(18)SXF6,
RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Mon 18-Sep-06 19:43 by tinhuang
                   BOOT = disk0:s3223-ipbasek9-mz.122-18.SXF6.bin,12;
                   CONFIG_FILE =
                   BOOTLDR = Configuration register = 0x2102

Peer Processor Information :
----------------------------
              Standby Location = slot 5
        Current Software state = STANDBY HOT
       Uptime in current state = 2 minutes
                 Image Version = Cisco Internetwork Operating System Software
IOS (tm) s3223_rp Software (s3223_rp-IPBASEK9-M), Version 12.2(18)SXF6,
RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Mon 18-Sep-06 19:43 by tinhuang
                   BOOT = disk0:s3223-ipbasek9-mz.122-18.SXF6.bin,12;
                   CONFIG_FILE =
                   BOOTLDR = configuration register = 0x2102
Note: You can force another switchover in which the standby Supervisor Engine becomes the active Supervisor Engine in order to restore the original roles of the Supervisor Engines (their active and standby status).

25.   Verify the image version that runs on the Supervisor Engine after the software upgrade.
Cat-6509#show version
Cisco Internetwork Operating System Software
IOS (tm) s3223_rp Software (s3223_rp-IPBASEK9-M),
Version 12.2(18)SXF6, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by cisco Systems, Inc.
Compiled Mon 18-Sep-06 19:43 by tinhuang
Image text-base: 0x40101040, data-base: 0x42D28000

ROM: System Bootstrap, Version 12.2(17r)SX3, RELEASE SOFTWARE (fc1)
BOOTLDR: s3223_rp Software (s3223_rp-IPBASEK9-M),
Version 12.2(18)SXF6, RELEASE SOFTWARE (fc1)

!--- Output suppressed.

The procedure to upgrade Cisco IOS software on redundant Supervisor Engines is complete.