Hello,
I'm having an issue where I have a WS-C2960-48FPD-L that I'm trying to join into an existing stack with other switches of the same model. All switches just went an IOS update to version 15.2(2)E7 so they're all running the same IOS. The switch I'm trying to add was taken out of a stack from one closet and needs to be added to a stack in another closet. I wiped the flash, reloaded the IOS image using a .tar file and extracted it to flash, unset SWITCH_NUMBER & SWITCH_PRIORITY boot variables since it was still set according to the old stack parameters, and left the switch number and priority the default (switch 1, priority 1). I didn't make any other changes to this switch such as setting the switch number and priority in order to ensure that there was no existing startup config in flash. On the master switch of the stack I'm trying to add it to, I set the following command:
conf t
switch 3 provision ws-c2960x-48fpd-l
end
wr mem
However, when trying to add it to the new stack, it never gets detected and boots as the master. I tried different cable arrangements and tried reloading the entire stack to see if the stack master election process would help detect but no go. A team member suggested I try to add it back to the old stack it came out of to see if it would be added and to eliminate a cable or module issue. So I set the same config command from above on the old stack since I removed the member provision when I took it out of the stack. Much to my surprise, it was detected and added back into the old stack with no issues. Seeing that the cable and modules are good, the IOS software are the same, and the stack manager version is the same on both stacks, what is causing this problem? Here is output from the 'show platform stack manager all' command (some output cut):
OLD STACK (Had 4 switches and was consolidated down to 2):
sh platform stack manager all
Switch/Stack Mac Address : 0076.866d.ae80
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 0076.866d.ae80 15 4 Ready
2 Member 0076.866d.c080 13 4 Ready
Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Ok Down 2 None
2 Ok Down 1 None
Stack Discovery Protocol View
==============================================================
Switch Active Role Current Sequence Dirty
Number State Number Bit
--------------------------------------------------------------------
1 TRUE Master Ready 134 FALSE
2 TRUE Member Ready 245 FALSE
Stack State Machine View
==============================================================
Switch Master/ Mac Address Version Current
Number Member (maj.min) State
-----------------------------------------------------------
1 Master 0076.866d.ae80 1.56 Ready
2 Member 0076.866d.c080 1.56 Ready
Last Conflict Parameters
Switch Master/ Cfgd Default Image H/W # of Mac Address
Number Member Prio Config Type Prio Members
-----------------------------------------------------------------------
1 Master 15 No 4 5 1 0076.866d.ae80
2 Member 13 No 4 5 0 0076.866d.c080
3 Member 13 No 4 5 0 0076.866d.c080
4 Member 12 No 4 5 0 0076.866d.8f00
NEW STACK:
sh platform stack manager all
Switch/Stack Mac Address : 40a6.e874.6d80
Mac persistency wait time: 15 mins
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 40a6.e874.6d80 15 4 Ready
2 Member c800.8419.5300 13 4 Ready
3 Member 0000.0000.0000 0 0 Provisioned
Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Ok Down 2 None
2 Down Ok None 1
Stack Discovery Protocol View
==============================================================
Switch Active Role Current Sequence Dirty
Number State Number Bit
--------------------------------------------------------------------
1 TRUE Master Ready 123 FALSE
2 TRUE Member Ready 078 FALSE
Stack State Machine View
==============================================================
Switch Master/ Mac Address Version Current
Number Member (maj.min) State
-----------------------------------------------------------
1 Master 40a6.e874.6d80 1.56 Ready
2 Member c800.8419.5300 1.56 Ready
Last Conflict Parameters
Switch Master/ Cfgd Default Image H/W # of Mac Address
Number Member Prio Config Type Prio Members
-----------------------------------------------------------------------
1 Member 15 No 4 5 0 40a6.e874.6d80
2 Member 13 No 4 5 0 c800.8419.5300
Thank you!
