Cisco Switching/Routing :: 3750 Stack - Changing Switch Member Number From 3 To 2?

Sep 24, 2012

1)  current  switch have below mentioned  switch stack details
   . 
switch#sh switchSwitch/Stack Mac Address : fcfb.xyz.8b80H/W CurrentSwitch# Role Mac Address Priority Version State----------------------------------------------------------*1 Master fcfb.xyz.8b80 10 0 Ready3  Member 2893.xyz.3180 1 0 Ready
 
2) I am in process of changing switch member number from  3 to 2   , I executed the command on the global config mode " switch 3 renumber 2 "but I yet to reload the switch .
 
here I have I doubt . as currently  the ports module are   fas 1/0/1-48  and  fas 3/0/1-48 under respective vlan  . once I reload the switch is the switch port module number will get change to  fastethernt 3/0/1-48 to   fastethenet 2/0/1-48 ???  .  if it happens  the vlan configuation which configured on the fas 3/0/1-48 module  also get configured automatically  or I need to configure  manually
   
3) as i said  i have execuated  the command  :  "switch 3 renumber 2 " , how to remove this or revert the change  , as i checked in the running config  this command not exist .

switch ( config) # switch 3 renumber 2WARNING: Changing the switch number may result in aconfiguration change for that switch.The interface configuration associated with the old switchnumber will remain as a provisioned configuration.Do you want to continue?[confirm]Changing Switch Number 3 to Switch Number 2New Switch Number will be effective after next reboot

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Cisco Switching/Routing :: 3750 - Changing Stack Member Numbers

Feb 5, 2012

I've got a 3750 stack with a 3750-48p being switch 1 and a 3750-12s being switch 2 and switch 2 is the master. I would like to change the stack member numbers. I would like the 3750-12s to be switch 1 and the 3750-48p to be switch 2. I undertand I will have to reboot the stack for the change to take affect but here are my questions:
 
- How would this change affect the stack running-config ?

- will the switchport config follow the change ?
 
switch 1 provision ws-c3750-48p
switch 2 provision ws-c3750g-12s

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Apr 5, 2012

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Jul 10, 2012

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[code],....

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Cisco Switching/Routing :: 3750 - Change Stack Member Numbers

Mar 3, 2011

I've got a 3750 stack with a 3750-48p being switch 1 and a 3750-12s being switch 2 and switch 2 is the master. I would like to change the stack member numbers. I would like the 3750-12s to be switch 1 and the 3750-48p to be switch 2. I undertand I will have to reboot the stack for the change to take affect but here are my questions: How would this change affect the stack running-config ? will the switchport config follow the change ?

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Apr 16, 2013

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Cisco Switching/Routing :: CBS 3120X-S Switch Stack Member Down

Mar 4, 2012

I have a 3 member CBS3120X-S stack in a HP C7000 enclosure (switches 1, 3, and 5). Switch 1, (the previous stack master) is not showing up in the stack and all the ports are down. Switch 3 has taken over as master, but I don't know what happened to switch 1.  The system and stack lights are green and I am not seeing any messages in the log. I reset switch 1 and that did not resove the issue. I disconnected the stack cable and reset the switch again (pulled it out and pushed it back in) and connected to it with a console cable. I get nothing on the console, not even rommon mode. I was connected at the default baud rate that worked when I connected the conole of the other switches in the stack, so I don't think is a serial configuration issue. If this is CBS hardware problem, I don't understand why the system light is green.

Switches 1,3, 5 and provision configuration:
 
switch 1 provision ws-cbs3120g-s
switch 3 provision ws-cbs3120x-s
switch 5 provision ws-cbs3120g-s

[Code].....

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Apr 30, 2013

We currently have a stack of 5 x 3750 switches and i want to remove switch number 3 (it has the least number of things plugged in). What will happen to switch 4 and 5 will they be renumbered 3 and 4, and will the config automatically update this if it does?

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Jun 21, 2012

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Cisco :: 3750 Stack Member Loss Power?

Jun 10, 2012

I have a switch stack with three WS-C3750X-48 switches running 12.2(55)SE. Recently, stack member 3 went offline for a few minutes, after being online for over a year. A show version on member 3 reports that the system returned to ROM by power-on.

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Feb 7, 2012

I have two 3750X in a stack. Each 3750X has one 10Gb uplink to primary core1 and one 1Gb uplink to backup core2 configured in 2 etherchannel groups. The member switch has bad ports, so I need to replace it. I have spare 3750X unit. Is it possible to connect the spare unit to the stack and then move the RJ-45 cables from the member with bad ports to the new member? That way I can minimize servers downtime to just a few seconds..If that would work, then the last step would be to move the 10Gb networking module from old member to the new one, as well as the secondary PSU. Is it doable? Also according to the documentation, all I need to add new member is matching IOS version, correct?

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Nov 17, 2012

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Aug 11, 2011

I have a doubt. In my environment I have two Switch 3750-X in stack.

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Oct 30, 2011

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Sep 12, 2012

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Feb 7, 2011

I have a stack with a lot of stack-port changes, but on all the ports, how can I determine the faulty switch in the stack, cables are already verified. We did also a restart of the whole stack power off/on
 
running version
 
WS-C3750-48P       12.2(55)SE            C3750-IPBASEK9-M
 
This is the output after 6weeks
 
Switch#/  Stack   Neighbor   Cable    Link   Link   Sync      #         In  Port#     Port              Length    OK   Active   OK    Changes   Loopback          Status                                          To LinkOK          --------  ------  --------  --------  ----  ------  ----  ---------  --------  1/1     OK         4      1

[Code].....

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Jan 6, 2013

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Oct 2, 2012

One switch of our stack of 8 3750 have reboot with no reason. Nobody was in the room server when it appears et there was'nt any electrical problem at this moment.

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Nov 12, 2011

I have four-switch Cat 3750 stack that has been working reliably for a couple years. Suddenly the other morning it reboots itself, and has been doing so every 24 hours since. take a look at the attached log? This should really be a Smartnet thing, but as it turns out the warranty we have on this is not Smartnet .

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Cisco Switching/Routing :: High Memory And CPU With 3750 Stack Switch?

Dec 26, 2012

We are having 3750 Stack switch as our edge switch. Here we are having some issues as low memory & itermediate High CPU utilization.For memory when we checked its shwoing maximum memory is allocated to DHCPD receive & ARP Input as follows
 
Processor Pool Total:   70829380 Used:   56809532 Free:   14019848
      I/O Pool Total:   12582912 Used:    8554920 Free:    4027992
Driver te Pool Total:    1048576 Used:         40 Free:    1048536

[code].....

i want to understand why this 2 proceses (DHCPD & ARP input) taking more memory?High CPU: We also facing intermediate high CPU utilization (above 95%). When CPU is high there were 2 processes consuming more CPU are 'Spanning Tree' (about 20%) & ARP Input (about 66%). we also checked the ARP entries, there were 1500 ARP entries & 2 incomplete ARP (out of 6000 ARP supported)

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Cisco Switching/Routing :: 3750 Connect Stack Cables To New Switch

Dec 11, 2011

At a customer i've tried to add a new 3750 switch til a running stack.I used the following proccess:
 
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Cisco Switching/Routing :: Adding A New Switch In Existing Two 3750 Stack

Mar 25, 2012

in our network we were using three 3750-48-s switches with stacking one of the switch due to some hardware failure power problem,
 
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how to add this switch in the existing two stack switches , with documentation

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Nov 30, 2011

I have WS-C3750-48PS-S, i wanted to implement GLBP on this switch, Is it possible to configure GLBP on this switch?
 
IOS :                    c3750-ipservicesk9-mz.122-55.SE4.bin
Part number:     WS-C3750-48PS-S

[Code].....

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Cisco Switching/Routing :: 3750 / Stack Switch With Etherchannel Configuration

Dec 20, 2012

I have stack of 2 switches 3750?I config etherchannel between them.
 
here is result
 
2      Po2(SD)         LACP      Fa1/0/15(I) Fa2/0/15(I)
 
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Cisco Switching/Routing :: Stack L3 With L2 3750 Without Upgrading L2 Switch IOS To IP Services

Nov 20, 2012

is there a document that explains the compatibility of 3750 series that can be stacked together? for example can we stack 3750-x with 3750-v2 without the power sharing? Can we stack a L3 3750 with L2 3750 without upgrading the L2 switch IOS to ip services?

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Cisco Switching/Routing :: Removing Provisioned Switch - Cat 3750 Stack

Oct 27, 2012

We have a live stack with 4 Cat 3750 switches of mixed varieties.  Switch 1 crashed the other day and didn't come back up.  A power reset brought the switch online again, and switch 2 is now running as the stack master.  We are going to replace switch 1 in a staged approach to minimise client downtime.  Switch 1 is a ws-c3750-48ts and we will be replacing it with a ws-c3750g-48ts.  I will be pre-provisioning and installing the new switch into the stack as switch 5 and configuing the ports to be the same as switch 1.  The cables will then be moved over from switch 1 to switch 5 so the changeover time should be minimal.  When all cutover, I'll power down switch 1, reconfigure the stack cables and remove switch 1 from the stack.
 
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Cisco Switching/Routing :: Adding 3750 Switch To Existing Stack?

Nov 23, 2011

I am looking to add a new 3750 Switcch to an existing stack shown below
 
Switch   Ports Model             SW Version             SW Image
------   ----- -----             ----------             ----------
*   1   26     WS-C3750-24P       12.2(35)SE5             C3750-IPBASE-M
     2   26     WS-C3750-24P       12.2(35)SE5             C3750-IPBASE-M
     3   26     WS-C3750-24P       12.2(35)SE5             C3750-IPBASE-M

[code]....
 
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Jun 5, 2012

I have a Cisco 3750G-48PS Running IOS 12.2(40) and was wondering how many physical ports are supported in an LACP Configuration.  Is it 4 or 8 ports in a single switch.
 
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Mar 26, 2012

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Jan 16, 2012

I have 4 switches in a 3750-X stack.Here is the output from the stack why are the switches out of order and I'm not able to bring up switch 1 port 1.

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Power stack name: Powerstack-4
    Stack mode: Power sharing
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        High port priority value: 13
        Switch priority value: 4
        Port 1 status: Shut
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        Neighbor on port 1: 0000.0000.0000
        Neighbor on port 2: c471.fe84.e100
 
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        Low port priority value: 21
        High port priority value: 12
        Switch priority value: 3
        Port 1 status: Connected
        Port 2 status: Connected
        Neighbor on port 1: c471.fe85.3000
        Neighbor on port 2: c471.fe80.2800
 
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        Low port priority value: 19
        High port priority value: 10
        Switch priority value: 1
        Port 1 status: Connected
        Port 2 status: Not connected
        Neighbor on port 1: c471.fe80.2800
        Neighbor on port 2: 0000.0000.0000
 
    Switch 3:
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        Low port priority value: 20
        High port priority value: 11
        Switch priority value: 2
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        Port 2 status: Connected
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Oct 18, 2012

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Oct 16, 2012

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