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unable to add a 3750G-24T in a existing stack

when i tried to add a 3750 in an existing stack i've got 2 stack.

what should be the state of stackwise port reported by the cmde sh switch stack-port

the cmde report some down port on my stack

6 REPLIES

Re: unable to add a 3750G-24T in a existing stack

In a working state the ports should be up. It is worth checking that the new switch is provisioned within the config of the stack, and that they are all running the same SDM template, and have the compatible IOS versions. I would expect to see warnings about version mismatch and SDM template mismatch within the output of a show switch command.

Community Member

Re: unable to add a 3750G-24T in a existing stack

thanks for answering , the version is the same on all switch (12.2.40 ipservices)

here are the results of cmd sh switch stack-port (4th switch removed)

sumatra#sh switch stack-port

Switch # Port 1 Port 2

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

1 Down Ok

2 Ok Down

3 Ok Ok

is that normal?? or should i 've OK for all ??

regards

Purple

Re: unable to add a 3750G-24T in a existing stack

Post a show version" and a "show switch detail" . Looks like a problem with at least 2 of your switches are not working . Usually a version mismatch or something like that .

Community Member

Re: unable to add a 3750G-24T in a existing stack

i glen thanks for answer

here is a show platform stack-manag all

sumatra#sh platform stack-manager all

Switch/Stack Mac Address : 000f.340f.3180

H/W Current

Switch# Role Mac Address Priority Version State

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

1 Member 000d.290a.3a00 10 0 Ready

2 Member 000d.2926.4500 12 0 Ready

*3 Master 000f.340f.3180 15 0 Ready

4 Member 0000.0000.0000 0 0 Provisioned

Stack Port Status Neighbors

Switch# Port 1 Port 2 Port 1 Port 2

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

1 Down Ok None 3

2 Ok Down 3 None

3 Ok Ok 1 2

Stack Discovery Protocol View

==============================================================

Switch Active Role Current Sequence Dirty

Number State Number Bit

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

1 TRUE Member Ready 029 FALSE

2 TRUE Member Ready 029 FALSE

3 TRUE Master Ready 131 FALSE

Stack State Machine View

==============================================================

Switch Master/ Mac Address Version Current

Number Member (maj.min) State

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

1 Member 000d.290a.3a00 1.36 Ready

2 Member 000d.2926.4500 1.36 Ready

3 Master 000f.340f.3180 1.36 Ready

Last Conflict Parameters

Switch Master/ Cfgd Default Image H/W # of Mac Address

Number Member Prio Config Type Prio Members

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

1 Member 10 No 5 2 0 000d.290a.3a00

2 Member 12 No 5 2 0 000d.2926.4500

3 Member 15 No 5 2 0 000f.340f.3180

Silver

Re: unable to add a 3750G-24T in a existing stack

1. Is the problem only between stack members 1 and 2?

2. (banality) Have you tried different stack cable?

3. I've seen this problem before, when the loop was not able to close, and one stack connection was always going down. But I think it was a hardware issue.

There is a requirement for switches to have the same SDM template, but with different SDM you wouldn't even be able to create a stack.

I'd try to disconnect member 3 and see if stack between 1 and 2 comes up.

Purple

Re: unable to add a 3750G-24T in a existing stack

How is the stack wired ? Normally it should go from port 1 on the first switch to port 2 on the 2nd switch and port 1 on the 2nd switch to port 2 on the third switch and port 1 on the 3rd switch should go up to port 2 on the first switch .

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