sup720 dual sup native mode

Answered Question
Jun 14th, 2008
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Cisco:


We upgraded one of our layer 3 switch.

Dual sup slot 5 and 6. Basically, we upgraded the IOS by copying the IOS to sup-bootflash and changing the boot param. My question is, is there anything special we have to do to get the standby sup or does it sync auto?


thanks so much


Cisco Internetwork Operating System Software

IOS (tm) s72033_rp Software (s72033_rp-IPSERVICESK9-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 23:59 by tinhuang

Image text-base: 0x40101040, data-base: 0x42D90000


ROM: System Bootstrap, Version 12.2(17r)S2, RELEASE SOFTWARE (fc1)

BOOTLDR: s72033_rp Software (s72033_rp-IPSERVICESK9-M), Version 12.2(18)SXF6, RELEASE SOFTWARE (fc1)


nj02ga03ubr01 uptime is 49 minutes

Time since nj02ga03ubr01 switched to active is 48 minutes

System returned to ROM by power cycle (SP by power on)

System restarted at 20:49:57 EST Sat Jun 14 2008

System image file is "sup-bootflash:s72033-ipservicesk9-mz.122-18.sxf6.bin"


------------


nj02ga03ubr01#show module

Mod Ports Card Type Model Serial No.

--- ----- -------------------------------------- ------------------ -----------

1 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX SAL09316QPA

4 24 CEF720 24 port 1000mb SFP WS-X6724-SFP SAL094448D0

5 2 Supervisor Engine 720 (Active) WS-SUP720-3B SAL09465EGV

6 0 Supervisor-Other Unknown Unknown


Mod MAC addresses Hw Fw Sw Status

Correct Answer by n.nandrekar about 8 years 10 months ago

Hello!

You donot have to do anything else for the standby sup. It should automatically sync and come up in SSO mode.

But the image has to be present in the same flash even on the standby. i.e. when you copy the new image to sup-bootflash/disk0 of the active sup, you also have to copy the same image to the corresponding sup-bootflash/disk0 of the standby too.

"Router# copy sup-bootflash: slavesup-bootflash:"


the "slave" prefix to bootflash/disk etc. will refer to the corrosponding storage on the standby. Remember that all the storages are independent on each of the Sups and when reloading, each SUP loads from its own flash. So the same image has to be present in each of them.


In your case, probably you have not copied the image in the sup bootflash of the standby, and so it might be stuck in rommon> . You could copy the same image to a flash disk (disk0:) in the active and physically insert it in the disk0: slot on the standby. Then you can manually boot that image from the disk0: using the nonactive sup console :

Rommon> boot disk0:


Once the standby boots up, you can then copy the image to the slaveSup-bootflash: so that the sup boots up fine next time.


Hope this helps.


Regards,

Niranjan

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Correct Answer
n.nandrekar Sat, 06/14/2008 - 22:16
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Hello!

You donot have to do anything else for the standby sup. It should automatically sync and come up in SSO mode.

But the image has to be present in the same flash even on the standby. i.e. when you copy the new image to sup-bootflash/disk0 of the active sup, you also have to copy the same image to the corresponding sup-bootflash/disk0 of the standby too.

"Router# copy sup-bootflash: slavesup-bootflash:"


the "slave" prefix to bootflash/disk etc. will refer to the corrosponding storage on the standby. Remember that all the storages are independent on each of the Sups and when reloading, each SUP loads from its own flash. So the same image has to be present in each of them.


In your case, probably you have not copied the image in the sup bootflash of the standby, and so it might be stuck in rommon> . You could copy the same image to a flash disk (disk0:) in the active and physically insert it in the disk0: slot on the standby. Then you can manually boot that image from the disk0: using the nonactive sup console :

Rommon> boot disk0:


Once the standby boots up, you can then copy the image to the slaveSup-bootflash: so that the sup boots up fine next time.


Hope this helps.


Regards,

Niranjan

(please rate helpful posts).

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