Cisco 3750 stack port number

Answered Question
Jul 19th, 2012

Hi,

I have 2 x 3750 stacked, the port number of the master switch is gigabitEthernet2/0/1, slave as gigabigEtherent1/0/1.

Can I change the port numbering so that the master switch gets GigabitEthernet1/0/x?

Cheers,

Hannah

I have this problem too.
0 votes
Correct Answer by acampbell about 1 year 9 months ago

Pei,

Sorry I did no include in my list.

!

no switch 3 provisioned

!

end

copy run start

Regards,
Alex.
Please rate useful posts.

Correct Answer by acampbell about 1 year 9 months ago

Hannah

The interface number is part of the switch numbering scheme.


You could try renumbering the switches.
This will require a downtime maintainance window as
the switches need to reload

1) Renumber switch 1 to 3

config t
!
switch 1 renumber 3
end
!
reload slot 1
!
show switch
! verify switch stack is now 2 & 3
copy run start

2)config t
!
switch 2 renumber 1
end
!
reload slot 2
!
show switch
! verify switch stack is now 1 & 3
copy run start


3)config t
!
switch 3 renumber 2
end
!
reload slot 3
!
show switch
! verify switch stack is now 1 & 2
copy run start

It is also recommended that you set thye priorities
for the switches making the highest prority (15)
affective on the master switch.(Usually 1)

conf t
!
switch 1 priority 15
switch 2 priority 1
!
end
!
copy run start

I would then power off both switches
Then power on switch 1 wait 30 seconds then power on switch 2

show switch

Hopefully you should now seethe status you want

Desk_3750>show switch
Switch/Stack Mac Address : 0017.9562.6500
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master 0017.9562.6500     15     0       Ready
2       Member 0017.9555.f600     1      0       Ready

This ifo can all be seen at :-
http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00807811ad.shtml

Regards,
Alex.
Please rate useful posts.

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Average Rating: 5 (3 ratings)
Correct Answer
acampbell Thu, 07/19/2012 - 03:31

Hannah

The interface number is part of the switch numbering scheme.


You could try renumbering the switches.
This will require a downtime maintainance window as
the switches need to reload

1) Renumber switch 1 to 3

config t
!
switch 1 renumber 3
end
!
reload slot 1
!
show switch
! verify switch stack is now 2 & 3
copy run start

2)config t
!
switch 2 renumber 1
end
!
reload slot 2
!
show switch
! verify switch stack is now 1 & 3
copy run start


3)config t
!
switch 3 renumber 2
end
!
reload slot 3
!
show switch
! verify switch stack is now 1 & 2
copy run start

It is also recommended that you set thye priorities
for the switches making the highest prority (15)
affective on the master switch.(Usually 1)

conf t
!
switch 1 priority 15
switch 2 priority 1
!
end
!
copy run start

I would then power off both switches
Then power on switch 1 wait 30 seconds then power on switch 2

show switch

Hopefully you should now seethe status you want

Desk_3750>show switch
Switch/Stack Mac Address : 0017.9562.6500
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master 0017.9562.6500     15     0       Ready
2       Member 0017.9555.f600     1      0       Ready

This ifo can all be seen at :-
http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00807811ad.shtml

Regards,
Alex.
Please rate useful posts.

leepeiwai Thu, 07/19/2012 - 22:41

Hi Alex,

it works like a trick But how do I delete the third member?

I have power recycled both switches.

Switch#  Role   Mac Address     Priority Version  State

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

*1       Master f0f7.55b1.3980     5      1       Ready

2       Member f0f7.55b1.1900     1      1       Ready

3       Member 0000.0000.0000     0      1       Provisioned

Cheers,

Pei Wai

Correct Answer
acampbell Fri, 07/20/2012 - 03:15

Pei,

Sorry I did no include in my list.

!

no switch 3 provisioned

!

end

copy run start

Regards,
Alex.
Please rate useful posts.

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