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Switch Stack Problem

Hello

There are 3 3750G-24TS and 1 3750G-24TS-S1U switches. I stack the switches but the result of the "show switch neighbor" shows that cable between switch 1 port 1 and switch 4 port 2 is down. stack is not full,  I have tested all of the ports and all of the cables. the IOSs are the same on all switches.

what can I do ?

Thanks

3 REPLIES

Re:Switch Stack Problem

Hello

Are they cabled up correctly?

example:

sw1 p1 - sw2p2
sw2 p1 - sw3 p2
sw3 p1 - sw4 p2
sw4 p1 - sw1 p2

sh stack

res
paul

Sent from Cisco Technical Support Android App

Please don't forget to rate any posts that have been helpful. Thanks.
New Member

Re:Switch Stack Problem

Thanks for your help

yes I cabled them correctly

here is sh stack command result


today one of the switches (3750G-24TS-S1U) restarts randomly

so i removed it from the stack

SW-ED-01#show stack

Minimum process stacks:

Free/Size   Name

5040/6000   hulc_flash init

5768/6000   CDP BLOB

8536/9000   IP Background

10400/12000  master cfg mgr init process

5728/6000   vqpc_shim_create_addr_tbl

5712/6000   SPAN Subsystem

5712/6000   bulk config process

5760/6000   hpm bulk_vlan_state process

9376/12000  Init

5712/6000   stp_change_tree_type

8760/9000   cdp init process

5704/6000   HUDLD fiber table process

5560/6000   RADIUS INITCONFIG

5704/6000   Hulc Backup Interface Process

35176/36000  TCP Command

2600/3000   Rom Random Update Process

8096/12000  Virtual Exec

5552/6000   MDFS LC IPC Init Process

Interrupt level stacks:

Level    Called Unused/Size  Name

Interrupt level stacks:

Level    Called Unused/Size  Name

  4  3879339046   8096/9000  NETWORK INTERFACE CHIP

  5           0   9000/9000  SUPERVISOR EXCEPTIONS

  6      194556   8936/9000  NS16550 VECTOR

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Switch Stack Problem

Post the output to the command "sh switch details".

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