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John Quick

Supervisor IOS Upgrade

We are trying to upgrade the IOS on one of our 6509 switches. We have two 720 10GE supervisors running in SSO. Our procedure is reload the standby supervisor with the new IOS. We understand that you can only use one console connection when in RPR mode so we rely on the active supervisor giving us information that the standby unit is up and running.

The problem we have is that when we do a "show Module" on the switch the online diagnostics for the standby supervisor comes back us unknown.

SWITCH#sh module
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  3   24  CEF720 24 port 1000mb SFP              WS-X6724-SFP       SAL1231Z2E6
  4   24  CEF720 24 port 1000mb SFP              WS-X6724-SFP       SAL1231Z2EF
  5    5  Supervisor Engine 720 10GE (Cold)      VS-S720-10G        SAL1222S8XT
  6    5  Supervisor Engine 720 10GE (Active)    VS-S720-10G        SAL1430P5L5
  7   48  CEF720 48 port 10/100/1000mb Ethernet  WS-X6748-GE-TX     SAL12340ZU0
Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  3  0022.902b.5c98 to 0022.902b.5caf   3.2   12.2(18r)S1  12.2(33)SXI1 Ok
  4  0022.902b.5a10 to 0022.902b.5a27   3.2   12.2(18r)S1  12.2(33)SXI1 Ok
  5  001d.45e2.1038 to 001d.45e2.103f   2.0   8.5(2)       12.2(33)SXJ3 Ok
  6  0026.cb61.6d70 to 0026.cb61.6d77   3.4   8.5(4)       12.2(33)SXI1 Ok
  7  0022.55ec.a218 to 0022.55ec.a247   3.0   12.2(18r)S1  12.2(33)SXI1 Ok
Mod  Online Diag Status
---- -------------------
  3  Pass
  4  Pass
  5  Unknown
  6  Pass
  7  Pass

We believe the active supervisor can see the standby supervisor because when we save the configuration we get a message saying that the config is sync'd with the standby router. We have a TAC case raised to investigate but wondered if anyone else has had the same experience

We are upgrading from 12.2(33) SXI1 to 12.2(33) SXJ3

Any help would be great.



Reza Sharifi
Hall of Fame Expert


Are you following this document to upgrade your IOS?

Enter the issu runversion command to force a  switchover between the active and standby supervisor engines. The  standby supervisor engine, which has the new software image loaded,  becomes active. The previously active supervisor engine becomes the  standby and boots with the old software image (in case the software  upgrade needs to be aborted and the old image restored).

Router# issu runversion 

This command will reload the Active unit.  Proceed ? [confirm] y 

A switchover between the supervisor engines occurs now. The previous  standby supervisor engine becomes active and is running the new software  version. The previous active supervisor engine, now the standby  supervisor engine, boots with the old software.