6513 - Synchronising a hot standby Sup720??

[andy roles]

Hi,

I removed a hot standby supervisor card and made some changes to the configuration on the primary (remaining) card.

I did this because I wanted to quickly go back to a working configuration if anything went wrong during the change I was doing.

The change worked and the primary is happily running the new configuration now.

The problem -

When I reinserted the secondary (hot standby) card it didn't come back online as a standby.   All the 4 lights on the card are still showing as orange and the 'show mod' output shows the following:

Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
   ......output ommitted
  6   48  48-port 10/100/1000 RJ45 EtherModule   WS-X6148A-GE-45AF  SAL1007D89L
  7    2  Supervisor Engine 720 (Active)         WS-SUP720-3B       SAL09232X3S
  8    2  Supervisor Engine 720 (Other)          WS-SUP720-3B       SAL09232X3S
  9   48  48-port 10/100/1000 RJ45 EtherModule   WS-X6148A-GE-45AF  SAL1031X8MK
   ......output ommitted

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
   ......output ommitted
  6  0017.0eb1.6620 to 0017.0eb1.664f   2.0   8.4(1)       8.7(0.22)BUB Ok
  7  0013.7f0a.9998 to 0013.7f0a.999b   4.4   8.1(3)       12.2(33)SXH7 Ok
  8  0013.7f0a.9998 to 0013.7f0a.999b   4.4   Unknown      Unknown      Other
  9  0019.0684.0350 to 0019.0684.037f   2.0   8.4(1)       8.7(0.22)BUB Ok
   ......output ommitted

Mod  Sub-Module                  Model              Serial       Hw     Status
---- --------------------------- ------------------ ----------- ------- -------
   ......output ommitted
  6  IEEE Voice Daughter Card    WS-F6K-48-AF       SAL1008E4R0  2.0    Ok
  7  Policy Feature Card 3       WS-F6K-PFC3B       SAL092434W4  2.1    Ok
  7  MSFC3 Daughterboard         WS-SUP720          SAL09243818  2.3    Ok
  9  IEEE Voice Daughter Card    WS-F6K-48-AF       SAL1031X36G  2.0    Ok
   ......output ommitted

the IOS version is:

Cisco IOS Software, s72033_rp Software (s72033_rp-IPSERVICES_WAN-M), Version 12.2(33)SXH7, RELEASE SOFTWARE (fc3)

Please can anybody advise what process needs to be followed to synchronise the secondary card and bring it back online as a 'hot standby'?

Thank you,

Andy

[educruz · Accepted solution]

Casabasan,

Can you provide the outcome of "show redundancy", please?

Also, connect to the standby Sup via console. Let me know if it is in ROMmon or what the status is.

My theory is they will not sync due to mismatched configs. In some versions of code, this global command can help:

- redundancy config-sync ignore mismatched-commands

Otherwise, you will have to remove the working Sup, seat only the "unknown" Sup and configure it the same.

Kind regards,

- Ed 

[Leo Laohoo · Accepted solution]

All the 4 lights on the card are still showing as orange and the 'show mod' output shows the following:

This means the line card has gone into ROMmon. 

There are many causes for a redundant supervisor card booting into ROMmon.  They could be the following: 

1.  Hardware failure; 

2.  IOS mismatch with the active supervisor card; 

3.  No IOS found; 

4.  Wrong config-registry settings.  

The best way to determine is to console into the redundant line card and take it from there.