Switch stack Current State stuck in Provisioned

Unanswered Question
Aug 18th, 2010

I have a stack of 8 Cisco 3750 Switches.  I went to add a 9th switch to the stack today, which I have added switch to live stacks many of times.

I unplugged the stacking cable from the bottom stack to insert the new switch stacking cable once I did this Solarwinds Orion Network Performance monitor reported the stack as being down.  The stack did not power off, or reboot and none of the users lost connectivity.  I was able to plug into the stack and ping devices and had connectivity.  Did lose vlan management connectivity because the vlan interface was on a switch that is show Current State Provisioned.

Switch# show switch detail


         Stack Port Status             Neighbors
Switch#  Port 1     Port 2           Port 1   Port 2
---------------------------------------------------------------------
  3        Ok         Ok              None     None
  5        Ok         Ok                6         None
  6        Ok         Ok                7           5
  7        Ok         Ok                8           6
  8       Down       Ok               None      7

IOS Version - 12.2(25)SEE2            C3750-IPBASE-M

                                               Current
Switch#  Role      Mac Address     Priority     State
--------------------------------------------------------
1       Member    0000.0000.0000     0         Provisioned       *******Interfaces are showing down when they are really up and functional.
2       Member    0000.0000.0000     0         Provisioned       *******Interfaces are showing down when they are really up and functional.
3       Member    001b.8ff4.6900     1         Ready
4       Member    0000.0000.0000     0         Provisioned        *******Interfaces are showing down when they are really up and functional.
5       Member    001b.8ff4.2d80     1         Ready
6       Member    001b.8ff4.2200     1         Ready
7       Member    001b.8ff4.2a00     1         Ready
*8       Master    001b.8fbb.9180     1         Ready

The first 2 lines are what is expected, after that not sure what went wrong.

Aug 17 11:51:23.890 EDT-SUM: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 1 has changed to state DOWN
Aug 17 11:51:24.486 EDT-SUM: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 8 has changed to state DOWN
Aug 17 11:51:24.863 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 1 has been REMOVED from the stack
Aug 17 11:51:24.855 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 1 has been REMOVED from the stack (3750-1-5)
Aug 17 11:51:24.855 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 1 has been REMOVED from the stack (3750-1-3)
Aug 17 11:51:24.863 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 1 has been REMOVED from the stack (3750-1-4)
Aug 17 11:51:25.870 EDT-SUM: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan254, changed state to down
Aug 17 11:51:24.863 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 1 has been REMOVED from the stack (3750-1-6)
Aug 17 11:51:24.871 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 1 has been REMOVED from the stack (3750-1-7)
Aug 17 11:51:24.897 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 1 has been REMOVED from the stack (3750-1-2)

A bunch of Interfaces UP/DOWNS

Aug 17 12:00:33.117 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 2 has been REMOVED from the stack
Aug 17 12:00:33.403 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 4 has been REMOVED from the stack
Aug 17 12:00:33.083 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 2 has been REMOVED from the stack (3750-1-6)
Aug 17 12:00:33.217 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 4 has been REMOVED from the stack (3750-1-6)
Aug 17 12:00:33.108 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 2 has been REMOVED from the stack (3750-1-7)
Aug 17 12:00:33.242 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 4 has been REMOVED from the stack (3750-1-7)
Aug 17 12:00:33.108 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 2 has been REMOVED from the stack (3750-1-5)
Aug 17 12:00:33.242 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 4 has been REMOVED from the stack (3750-1-5)
Aug 17 12:00:33.133 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 2 has been REMOVED from the stack (3750-1-3)
Aug 17 12:00:33.267 EDT-SUM: %STACKMGR-4-SWITCH_REMOVED: Switch 4 has been REMOVED from the stack (3750-1-3)

I have this problem too.
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Leo Laohoo Wed, 08/18/2010 - 15:49

From the state of the the output you've posted, I can assume the following:

1.  Stacking cables are not properly seated or s crewed in;

2.  Faulty stacking cable; or

3.  Faulty stacking port(s)

Oh, and one more thing ... NINE (9)????  Holy-cwap-Batman!  I've made it a point never to exceed seven (7) in a stack.

mikejamrog Thu, 08/19/2010 - 12:54

Rebooted the stack and its back to normal. I think the problem was that Switch 8 was the master, I assumed switch 1 was

the master, but who knows.

Thanks for the feedback.

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