[c-nsp] Cisco 6k no power enable module

[Tassos Chatzithomaoglou]

It doesn't really matter whether you have powered off a slot or not (the module is 
recognized even when powered off).
As soon as you oir the module, a bus stall will probably occur. We have seen that multiple 
times.
Theoretically if you know how to insert/remove the module (not too quickly, not too 
slowly; it's a known pins "issue") you shouldn't have this problem,
Personally, i always had 100% success when doing it myself, but i don't expect everyone 
else to be so lucky.

--
Tassos


Mark Mason wrote on 1/12/2011 23:52:
> 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: 'cisco-nsp at puck.nether.net'
> 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
>
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