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30
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3750 Hangs

Ibrahim Jamil
Level 6
Level 6

Hi Folks

i removed this 3750 from stack, i wanna re-config it independtly , but it hangs at the below:

00:00:43: %STACKMGR-6-SWITCH_ADDED: Switch 2 has been ADDED to the stack
00:00:44: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
00:00:44: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
00:00:46: %SYS-5-CONFIG_I: Configured from memory by console
00:00:46: %STACKMGR-6-SWITCH_READY: Switch 2 is READY
00:00:46: %STACKMGR-6-STACK_LINK_CHANGE: Stack Port 1 Switch 2 has changed to state DOWN
00:00:46: %STACKMGR-6-STACK_LINK_CHANGE: Stack Port 2 Switch 2 has changed to state DOWN
00:00:47: %STACKMGR-6-MASTER_READY: Master Switch 2 is READY
00:00:47: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C3750 Software (C3750-IPBASE-M), Version 12.2(25)SEB2, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Wed 08-Jun-05 01:19 by yenanh
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/3, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/4, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/5, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/6, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/7, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/8, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/9, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/10, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/11, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/12, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/13, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/14, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/15, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/16, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/17, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/18, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/19, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/20, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/21, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/22, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/23, changed state to administratively down
00:00:48: %LINK-5-CHANGED: Interface FastEthernet2/0/24, changed state to administratively down

17 Replies 17

sdheer
Cisco Employee
Cisco Employee

Hi Ibrahim,


When you say switch hang do you mean that switch doesnt boots up at all ? or does it gets hang while you are configuring it ?

Does it comes up after some time or doesnt comes up at all ?

Regards,

Swati

Hi Ibrahim,

What I understand is that you have Catalyst 3750 stack each other, and you have removed one of them from stack but

still you want to use it with default configuration.


You don't need to to erase the configuration - you can just switch off the stack member you wish to remove, and then

unprovision it using the command:

no switch provision

Example:

To remove switch number 2 from a stack. The model number of the switch is WS-C3750G-48T:

3750(config)# no switch 2 provision ws-c3750g-48t
3750(config)# exit
3750# write memory


Hope this helps you.

Please rate the helpfull posts.

Regards,
Naidu.

Hi

what the below command means:

switch 1 provision ws-c3750-48ts
switch 2 provision ws-c3750-48ts

now i wanna add switch 3 to the stack, what do i nned to add on the master switch based on the output below,Please help line by line coz am scared when i add the new switch the network vlan users complain

3750#sh switch detail
Switch/Stack Mac Address : 0017.0ccb.5f70
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master 0017.0ccb.5f70     1      0       Ready              
2       Member 3416.9d7e.7F80     1      0       Ready             

         Stack Port Status             Neighbors    
Switch#  Port 1     Port 2           Port 1   Port 2
--------------------------------------------------------
  1        Ok         Ok                2        2
  2        Ok         Ok                1        1

Hi Ibrahim,

For adding a switch to the stack follow these steps:

Step 1) On the new switch give the global command: switch stack-member-number provision type
Where Type is the type of switch you are adding to the stack.

When adding for example a third Cisco switch to the Cisco stack, use the following command:
switch 3 provision ws3750g-24t


Step 2) Power off the new stack member

Step 3) Connect the new member to the Cisco stack using the stacking cables, 1 loop at a time.

Step 4) Power on the new stack member. The switch will come alive and will receive the Cisco IOS version from the master, when that is completed it will be ready to service network requests.

For removing a member switch from the stack use the following steps:

Step 1) Power off the stack member to be removed.

Step 2) Remove the stackwise cable from the switch.

Step 3) Issue the following command on the stack master: no switch stack-member-number provision type


Background

Cisco StackWise technology is a stacking architecture optimized for Gigabit Ethernet with 32-Gbps interconnect throughput. Cisco StackWise technology unites up to 9 individual Cisco Catalyst 3750 switches into a single logical unit, using special stack interconnect cables and stacking software. The stack behaves as a single switching unit that is managed by a master switch elected from one of the member switches. The master switch automatically creates and updates all the switching and optional routing tables. A working stack can accept new members or delete old ones without service interruption.


Also see the below link for Creation and Management of Catalyst 3750 Switch Stacks.

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00807811ad.shtml#conf


Finally I would suggest you to do this task in off working hours as it seems your setup is critical as you are getting vlan users complaints.

Please rate the helpfull posts.

Regards,
Naidu.

Hi Ibrahim,

Correct step by step procedure is available at:

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00807811ad.shtml#stack3

Change the switch priority of the switch to be added to "1".

switch stack-member-number priority new-priority-value
Note: This step is optional, but it will make sure that the switch has fewer chances to become a stackmaster in the future.

Power off the switch that is to be added.

Make sure that the stack is fully connected so that, when you connect the new switch, the stack will be at least in half connectivity and does not partition.

Connect the new switch to the stack with the StackWise ports.

Power on the newly added switch.

After the new switch comes up, issue the command show switch to verify stack membership.

connect the stack cable as shown below:


Cheers,

Shashank

Please rate helpful posts.

And also here is another step by step procedures for you.....

This is mostly simple to do, but there are several checks to make along your journey, and hopefully I can point them out clearly.

  1. First, check the stacking status of your existing stack using the below command. It should say that the stack ring speed is “full”. If it doesn’t you need to ensure you have a complete stack “ring” thereby having redundant stacking paths on each switch.

    ZZStack#show switch stack-ring speed
    
    Stack Ring Speed        : 32G
    Stack Ring Configuration: Full
    Stack Ring Protocol     : StackWise

    See this publication for stack-wiring help:
    http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/hardware/quick/guide/3750GSG3.html#wp49279

  2. Once you know your stack is a complete ring(“full”) you can safely break this ring to insert your new switch. ENSURE YOUR NEW SWITCH IS POWERED OFF. Rack this new switch adjacent to your existing switches. “Break” the ring in one place so you can wire your new switch so it fits nice and neat in this new stack, following the wiring schema linked above. Once everything is wiring in place, you may NOW power on your new switch.
  3. After a few minutes your switch will have booted and the existing stack should recognize it as joining the stack. You can verify its status with:
    ZZStack#show switch stack-ring speed
    
    Stack Ring Speed        : 32G
    Stack Ring Configuration: Full
    Stack Ring Protocol     : StackWise
    ZZStack#show switch
    Switch/Stack Mac Address : 0024.9803.8e80
                                               H/W   Current
    Switch#  Role   Mac Address     Priority Version  State
    ----------------------------------------------------------
    *1       Master 0024.9803.8e80     15     0       Ready
     2       Member 0023.ac0f.7880     1      0       Ready
     3       Member 001a.e267.0080     1      0       Version Mismatch

    In this example switch 3 was added to the stack, the stack ring looks good, but on the switch status output, instead of saying “Ready” it says “Version Mismatch.” You now need to ensure your switch gets the same IOS version as its stack-mates and reboots for this to take effect(see below).

    If your stack says your new switch is in the “Ready” state, you are in luck and you are done! (except for configuring your new user ports)

  4. Automatic Upgrade is a great thing in theory, but I’ve not had the best of luck with it. From what I can tell if your existing stack and this new member you are adding are running different IOS featuresets, the automatic upgrade will NOT WORK.

    To check to see if its working or not, check the log. If you see log entries resembling any of the below, it appears automatic upgrade is working as it should.

    ZZStack#show log
    ---snip---
    Nov 24 16:58:36.388 EST: %IMAGEMGR-6-AUTO_COPY_SW_INITIATED: Auto-copy-software process initiated for switch number(s) 3

    This shows that it has started the auto upgrade process. You can check the status with the “show archive status” command or by continually checking the log.

    If you see the below it was successful and is now rebooting this member switch so the correct IOS loads and it can finally join the stack as it should(and you should be done):

    ---snip---
    Nov 24 17:06:04.453 EST: %IMAGEMGR-6-AUTO_COPY_SW: Software successfully copied to
    Nov 24 17:06:04.453 EST: %IMAGEMGR-6-AUTO_COPY_SW: system(s) 3
    Nov 24 17:06:04.453 EST: %IMAGEMGR-6-AUTO_COPY_SW: Done copying software
    Nov 24 17:06:04.453 EST: %IMAGEMGR-6-AUTO_COPY_SW: Reloading system(s) 3

    If you don’t see any of the above log entries, go on to the next step.

  5. This is the step they don’t really explain well. Thankfully, the “Version Mismatch” state, while not activating any of its ports, does allow you to manipulate the flash filesystem of the inconsistent member so you can stage it from the main stack interface.

    If you made it to this step, it probably means there is a featureset mismatch(or some other problem) and you need to force this new member to take the IOS version that the stack is currently running. In this scenario, even the “archive copy-sw” command does not work, so you must either load the IOS bin file manually or use use the appropriate “archive download-sw” command with the “/allow-feature-upgrade” switch to load the IOS to the ENTIRE STACK again, including this new member(but you only need to reboot the new member). I prefer to use the archive command, its slow but its so easy!

Please rate the helpfull posts.

Regards,

Naidu.

Thanks folks,i ll do it than back to you

Hi Guys

on the Master Switch do i need to configure the  provision the 3rd swotch which to be added to the Stack

I have the below on the master switch,is okay to add switch 3 provision ws-c3750-24ts

switch 1 provision ws-c3750-24ts
switch 2 provision ws-c3750-24ts

Hi Ibrahim,

ibrahim.jamil wrote:

Hi Guys

on the Master Switch do i need to configure the  provision the 3rd swotch which to be added to the Stack

I have the below on the master switch,is okay to add switch 3 provision ws-c3750-24ts

switch 1 provision ws-c3750-24ts
switch 2 provision ws-c3750-24ts

you don't need to from what i have seen. Normally once the new switch becomes part of the stack , the master adds this by itself as it knows that its the 3rd switch in the stack. Alteast, thats what i have seen. However, when you remove the switch from the stack it doesnt automatically remove it . you have to manualy tell the master switch by typing "no switch 3 provision ws-c3750-24ts"

Just make sure that the IOS is the same on the new switch like that of the switches in the stack.

HTH,

Regards,

Please rate if helpful

thanks

I am having the same issue.  I can not recreate the stack because got this switch 3750 12S fiber out of storage to use as a replacement.  When booting up, this is what I get and it doesn't progress any farther no matter how long I let it sit.

File "flash:c3750-ipservicesk9-mz.122-55.SE.bin" uncompressed and installed, entry point: 0x1000000
executing...

              Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

           cisco Systems, Inc.
           170 West Tasman Drive
           San Jose, California 95134-1706

Cisco IOS Software, C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(55)SE, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Sat 07-Aug-10 22:45 by prod_rel_team
Image text-base: 0x01000000, data-base: 0x02F00000

Initializing flashfs...

flashfs[1]: 502 files, 7 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 15998976
flashfs[1]: Bytes used: 15360000
flashfs[1]: Bytes available: 638976
flashfs[1]: flashfs fsck took 2 seconds.
flashfs[1]: Initialization complete....done Initializing flashfs.

Checking for Bootloader upgrade.. not needed
POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: PortASIC Memory Tests : Begin
POST: PortASIC Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed

Waiting for Stack Master Election...
POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed

POST: No Cable found on stack port 1
POST: No Cable found on stack port 2

POST: PortASIC Stack Port Loopback Tests : Begin
POST: PortASIC Stack Port Loopback Tests : End, Status Passed

POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed

Election Complete
Switch 1 booting as Master
Waiting for Port download...Complete


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco WS-C3750G-12S (PowerPC405) processor (revision Z0) with 131072K bytes of memory.
Processor board ID FDO1437V2K5
Last reset from power-on
1 Virtual Ethernet interface
12 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : 6C:50:4D:5E:46:80
Motherboard assembly number     : 73-9678-14
Power supply part number        : 341-0048-03
Motherboard serial number       : FDO14380HZA
Power supply serial number      : DTN143230H4
Model revision number           : Z0
Motherboard revision number     : A0
Model number                    : WS-C3750G-12S-E
System serial number            : FDO1437V2K5
Top Assembly Part Number        : 800-26634-12
Top Assembly Revision Number    : B0
Version ID                      : V14
CLEI Code Number                : COMA410BRA
Hardware Board Revision Number  : 0x06


Switch Ports Model              SW Version            SW Image                
------ ----- -----              ----------            ----------              
*    1 12    WS-C3750G-12S      12.2(55)SE            C3750-IPSERVICESK9-M    


Press RETURN to get started!


*Mar  1 00:01:12.720: %STACKMGR-4-SWITCH_ADDED: Switch 1 has been ADDED to the stack
*Mar  1 00:01:14.230: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Mar  1 00:01:15.589: %SPANTREE-5-EXTENDED_SYSID: Extended SysId enabled for type vlan
*Mar  1 00:01:20.069: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan3, changed state to down
*Mar  1 00:01:20.136: %SYS-5-CONFIG_I: Configured from memory by console
*Mar  1 00:01:20.497: %STACKMGR-5-SWITCH_READY: Switch 1 is READY
*Mar  1 00:01:20.497: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 1 has changed to state DOWN
*Mar  1 00:01:20.497: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 1 has changed to state DOWN
*Mar  1 00:01:20.824: %STACKMGR-5-MASTER_READY: Master Switch 1 is READY
*Mar  1 00:01:20.958: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(55)SE, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Sat 07-Aug-10 22:45 by prod_rel_team
*Mar  1 00:01:20.975: %SSH-5-ENABLED: SSH 1.99 has been enabled
*Mar  1 00:01:22.032: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down

I cannot run the no switch command mentioned earlier in this post and I am stumped as to how to proceed.  I've tried wiping the switch so the IOS can be upgraded.  It sits at, switch:, and will not flash_init.

Any suggestions, please.

If you can't do anything, check your console terminal to make sure all the settings are correct.


If they are, try a different client. 

Thanks, leolaohoo.

It still does the same thing. I've used putty, hyperterm and secure crt with the same results.

Ok, so you used different softwares to console.  What about the settings?  Did you make sure that that you have 9600-8-none-1 and flow control is OFF?

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