On 12/1/2011 3:52 PM, Mark Mason wrote:
We also just labbed a VS-S720-10G running 122-33.SXJ1 and were able to shut a
slot down without a module installed. Unfortunately we ALSO were able to
incorrectly install a WS-X6748-GE-TX and cause the 3 second bus disruption.
Anyone else run into this?
6509-v-e-test(config)#no power enable module 6
%FRU Absent. Power admin state updated
6509-v-e-test(config)#no power enable module 6
% slot is already disabled and not yet enabled
6509-v-e-test(config)#no power enable module 7
%FRU Absent. Power admin state updated
6509-v-e-test(config)#no power enable module 7
% slot is already disabled and not yet enabled
6509-v-e-test(config)#no power enable module 8
%FRU Absent. Power admin state updated
6509-v-e-test(config)#no power enable module 8
% slot is already disabled and not yet enabled
6509-v-e-test(config)#no power enable module 9
%FRU Absent. Power admin state updated
6509-v-e-test(config)#
6509-v-e-test(config)#no power enable module 9
% slot is already disabled and not yet enabled
6509-v-e-test(config)#
*Dec 1 21:14:36.304: %C6KPWR-SP-4-DISABLED: power to module in slot 8 set off
(admin request)
6509-v-e-test(config)#
*Dec 1 21:15:07.123: %OIR-SP-6-REMCARD: Card removed from slot 8, interfaces
disabled
*Dec 1 21:15:11.027: %C6KERRDETECT-SP-2-SWBUSSTALL: The switching bus is
experiencing stall for 3 seconds
*Dec 1 21:15:16.063: %C6KERRDETECT-SP-2-SWBUSSTALL_RECOVERED: The switching
bus stall is recovered and data traffic switching continues
*Dec 1 21:15:18.283: %C6KPWR-SP-4-DISABLED: power to module in slot 8 set off
(admin request)
Mark
From: Mark Mason
Sent: Thursday, December 01, 2011 2:38 PM
To: '[email protected]'
Subject: Cisco 6k no power enable module
Anyone know why Cisco doesn't allow for you to shut power down to a slot/module
unless a FRU is installed in it? We can reproduce 100% multiple times in the
lab WS-X6748-GE-TX installation's that causes the bus to stall 3 seconds. It
has to do with the force you apply to the card during installation.
%C6KERRDETECT-SP-2-SWBUSSTALL: The switching bus is experiencing stall for 3
seconds
%C6KERRDETECT-SP-2-SWBUSSTALL_RECOVERED: The switching bus stall is recovered
and data traffic switching continues
Router(config)#no power enable module 8
%FRU Absent. Power admin state updated
Mark
The bus stall HAS to occur (and will occur) as to not corrupt data on
insert and removal. This is why it is imperative that a) you do this
during maintenance windows b) use DFCs.
You may not get the message all the time but it still occurs. So, I
would say you installed in correctly. If you would have installed it
incorrectly, the box would have crashed.
As for powering down a slot with no card, I never tried that.
Interesting :)
tv
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