Cisco Switching/Routing :: 3750X - 48PS Switches Power Stacking

Mar 28, 2012

In my office we bought 7 cisco 3750X - 48PS switches. We configured Data Stacking between those switches. We also want to configure Power Stacking between those 7 devices.
 
I found in the Data Sheet that we can only configure 4 devices in power stacking at a time. If it is like that how to configure the rest of 3 devices. Need configuring power stacking between those devices in a better way..

power stack cable part no we have is
CAB-SPWR-30CM

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Cisco Switching/Routing :: 3750X Setting Up Power Stacking Switches

Dec 27, 2012

I'm trying to get some clarity on power stacking 3750X switches. I have a new stack of 6 switches. I know I can only have 4 in a power stack and all 6 in the data stack with a max of 8. I'm trying to find the proper way to connect the power stack cables for the 4 switch power stack.

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Cisco Switching/Routing :: Stacking WS-C3750-48PS-S With WS-C3750G-48PS?

Apr 17, 2013

I have production stack in the following config:
 
Switch   Ports  Model              SW Version              SW Image
------   -----  -----              ----------              ----------
*    1   52     WS-C3750-48P       12.2(25)SEE4            C3750-IPSERVICESK9-M
     2   52     WS-C3750-48P       12.2(25)SEE4            C3750-IPSERVICESK9-M
 
I want to add 3-rd switch to it:
 
Switch: WS-C3750G-48PS   12.2(25)SEE3           C3750-IPSERVICESK9-M
 
Will this configuration work? My main concern is IOS difference?

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Cisco Switching/Routing :: Stacking WS-C3750-48PS-S And WS-C3750G-48PS?

Mar 3, 2013

I have 3750-48PS-S in production and would like to stack it with C3750G-48PS. Both switches are running code:

c3750-ipservicesk9-mz.122-50.SE3.bin

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Cisco Switching/Routing :: Power Stacking For 3750x - Both Cables Needed?

Jun 7, 2012

Suppose I have a 3 member stack of 3750x switches.  Members a, b and c.I have all 3 members stacked with all 3 *data* stacking cables in a daisy-chain topology.  The 50 cm data stacking cable from switch a (on the very top) to switch c (on the very bottom) just barely reached.Of course, that means the 30 cm *power* stacking cable didn't reach between a & c.  Right now, the power stacking cable goes from a to b, and then another cable from b to c.  Leaving me with a useless extra 30 cm power stacking cable.
 
My question is, can switch "a" receive power from switch "c" through switch "b"?  Is this just a big electrical "bus"?  What if the power supply in switch "b" is removed?Just wondering if there is a need for me to get a longer power stacking cable (one of the 150 cm power stacking cables). 

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Cisco Switching/Routing :: Stacking 24 And 48 Port 3750X Switches Not Working?

Dec 11, 2012

We purchased a number of 3750X 48 and 24 port switches for the College Campus. Am finally getting around to getting them inserted on the network. Working with a WS-3750X-48PF-S and a WS-3750X-24P-L. Have them stacked with the 10Gb uplink on the 48 port switch. Have not been having fun.In the boot sequence, the switches recognize they are stacked, but as soon as they finish boot, I get the message on the 48 port switch: “Stack Port 1 Switch 1 has changed to state down.” Then “Stack Port 2 Switch1 has changed to state down.” Am noticing that I have a message preceding that: “Major version mismatch with stack neighbor.”The 48 port is running c3750e-universalk9-mz.150-1.SE3, HBOOT 12.2(53r)SE2.The 24 port is running c3750e-unversalk9-mz.122-55.SE3, HBOOT 12.2(53r)SE2Most of our 3750X and older switches are running 122-55 or 122.58 code. IP base or Universal. There is speculation that the problem is the 24 Port is Lan base, as the part number might indicate. (WS-C3750X-24-P-L.... I think that is the part number) and the 48 is IP base. Both switches are Universal, and my understanding is that they don't care about LAN or IP Base until you enable a function that falls in the IP Base domain. Then I have to call Cisco Licensing.For these switches, LAN Base is fine, based on the boot message, I feel the real problem is 122-55 versus 150-1 in the stack. So.. the question is: Do I downgrade the 48 port to match what we have in our environment, and what is on the 24 port switch. Or... Upgrade the 24 port switch to match the 48 port switch and have an installation that is not consistent with our environment? I do have two more edge closets to install with this purchase of 3750X 48 port switches.

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Cisco Switching/Routing :: WS-C3560-48PS-S Show Power Inline But No Power Available

Apr 14, 2013

We have two switches of the same model (WS-C3560-48PS-S) that are not providing PoE. I'm trying to remotely determine what the cause of the issue is.
 
Here is some output.
 
Hostname#show power inlineAvailable:0.0(w)  Used:0.0(w)  Remaining:0.0(w)
Interface Admin  Oper       Power   Device              Class Max                            (Watts)--------- ------ ---------- ------- ------------------- ----- ----Fa0/1     auto   off        0.0     n/a                 n/a   15.4Fa0/2     auto   off        0.0     n/a                 n/a   15.4Fa0/3     auto   off        0.0     n/a                 n/a   15.4Fa0/4     auto   off        0.0     n/a                 n/a   15.4Fa0/5     auto   off        0.0     n/a                 n/a   15.4Fa0/6     auto   off        0.0     n/a                 n/a   15.4Fa0/7     auto   off        0.0     n/a                 n/a   15.4Fa0/8     auto   off        0.0     n/a                 n/a   15.4Fa0/9     auto   off        0.0     n/a                 n/a   15.4Fa0/10    auto   off        0.0     n/a                 n/a   15.4(code)

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Cisco Switching/Routing :: Stacking With 3750X?

Jan 1, 2013

There seems to be a lot of conflicting information on what can and can't stack together in the 3750X range.
 
I know that LAN Base can only stack with other LAN Base switches.
 
Can IP Base stack with IP services in 3750X? I have also heard that the 15.x.x IOS restricts mixed feature set stacks?
 
I know that Cisco recommends that all switches in a stack have the same IOS and feature set but having all IP Services in a stack can get too expensive.

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Cisco Switching/Routing :: 3750X And 3750 Stacking Together

Nov 1, 2012

I have two WS-C3750-48PS-S switches and I need to add two more.  The new part number I am looking at is WS-C3750X-48P-S will these all stack together ?

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Cisco Switching/Routing :: Stacking 3750X With 3750G?

Apr 22, 2013

I have one 3750X with C3KX-NM-10GT, I need to interconnect using stackwise to 3750G-24TS. The 3750X needs IOS 15.0(1) to use C3KX-NM-10GT, and the latest IOS for 3750G-24TS is 12.2.55. How can I interconnect them using diferent IOS?

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Cisco Switching/Routing :: Stacking A 3750X With 3750Gs

Jan 23, 2013

We currently have a stack of 3750G switches that are running 12.2(46)SE C3750-ADVIPSERVICESK9-M
 
Our 3750X is currently running 15.0(2)SE C3750E-UNIVERSALK9-M and I believe we were told you can't stack with a Universal IOS image. We have the universal on there because we have some 10GB fiber connections on it that Cisco told us wouldn't work otherwise.
 
I realize that the switch versions need to match, but the question is, which version should we work off to have use of the 10GB SFP card?

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Cisco Switching/Routing :: Stacking Switch 3750E And 3750X?

Oct 3, 2012

can I make the stacking of these two switches WS-C3750E-48PD-SF and WS-C3750X-48PF-L. Both have universal IOS.

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Cisco Switching/Routing :: WS-C3560G-48PS-S Power Cord

Nov 23, 2011

I need to prepare a Bill of Material for WS-C3560G-48PS-S switch.
 
Whether we should go for CAB-AC-JPN -  AC power cord for Japan  OR CAB-AC-ACE   AC power cord for Europ

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Cisco Switching/Routing :: Catalyst 3750X Stacking Convergence Time?

Nov 14, 2011

convergence time in case of stack master will be switched over to other switch.In my understating, when the stack master will be switched over to other switch based on election algorithm, convergence time will be less than 10 second.
 
I tried to calculate concersion time during fail over testing but convergence time was 21 second. I think it is too long...

Expected reasons

・I configured Rapid Spanning tree protocol between L3 and L3. (But RSTP's convergence time is 2~3 second..)

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Cisco Switching/Routing :: 3560G-48PS-S - PoE Lockout After Power Outage

Oct 27, 2011

We had some problems with 3560G-48PS-S switches and PoE for our phones. IOS is 12.2(50)SE3. There were some problems after power outage. The switches didn't reboot because we have two eletric circuits. But after the problems we had no PoE on all ports.
 
The switches logged to following syslog message:
 
%ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi0/17: Power Controller reports power supply VDD under voltage
 
I can't find any informations in the error message decoder for that. But there was another thread here with quiet the same message, but another problem regarding RPS2300.
 
After reloading the device all works fine again. The workaround with the commands "power inline never" and "power inline auto" I didn't know till today.
   
Some information about that syslog message?
 
My guess is that there was a voltage swing and the switch powered down its supply? Is that possible?

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Cisco Switching/Routing :: 3750x Remove Stacking Option On Sunday For Testing

May 2, 2013

is it easy to remove the 3750x stacking?  i'd like to test one of them on a sunday and keep the other one on production.  it's just two stack of 3750x, is it hard and do i really need to remove the cables on the back?
 
basically i need to put a different config for my testing, i gues i need to remove the cables right?  and put it back on the stack before monday.

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Cisco Switching/Routing :: Stacking 3750g And 3750x - Hardware Version Mismatched

Jul 18, 2012

I am trying to stack a 3750g with a 3750x. At the moment they will not stack with their current IOS as the hardware version is mismatched.
 
According to various posts this is possible as long as the same IOS is in use. The following IOS are currently in use:
 
3750g     -     c3750-ipbaselmk9-tar.122-55.SE5
3750x     -     c3750e-ipbasek9-mz.150-1.SE3
 
I have tried to downgrade the IOS on the 'X' to 122-55.SE5 however, i get errors regarding firmware incompatibility.
 
I am unable to upgrade the IOS on the 'G' to 150-1.SE3, as the size of the IOS image is larger than the available flash (Version 15 IOS for the 3750G (c3750-ipbasek9-mz.150-1.SE3.bin) is 16,074,189 bytes whereas the 3750G has 16MB of flash memory or 15,998,976 bytes total which mean the IOS will not fit).
 
Has not actually stacked these devices successfully? I understand there may be license implications of upgrading to 15 but at the moment I just want them to stack!

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Cisco Switching/Routing ::WS-C3560G-48PS - IP Phone Gets Restart While Power Fluctuate

Jun 21, 2011

We are using WS-C3560G-48PS connected via UPS power supply. Whenever raw power supply gets fluctuates few of the IP phones (Alcatel) gets reset although switch is remain up and running. We checked the same by disconnecting the raw power supply but we didn't found any packet loss from the node which are connected through this switch. But few IP phone gets reset. What could be the reason

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Cisco Switching/Routing :: 3560v2 / Ws-c3560v2-48ps-s (inline Power Failure)

Jul 22, 2012

I have a switch 3560v2 with an IOS 12.2(50) SE1.All the lights ON and console error message below:POST: inline power post failed for port 0 up to port 15.Then, the system hanged and all lights (indicator) ON.

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Cisco Switching/Routing :: Stack-power 3750x / FRU Power Supply Is Not Responding

Sep 4, 2012

After stacking two 3750X switches, with four equal power-supply's, with StackWise and PowerStack , still got the next message every few hours %PLATFORM_ENV-1-FRU_PS_ACCESS: FRU Power Supply is not responding (gn4m-rt1p08-04-2)( note that the message revers to the second switch in the stack ) although the stackwise and powerstack on the switches is oke and are working correctly. !
 
Config  : Stack-power in power-sharing mode/strict With CLI on the switch : All the power supply's and stack-power details, prio look OK.
 
Only: LMS prime /inventory/cisco-view/configure/power supply status  result :  some power supply's are marked as disabled.with the command  > power supply 2 slot a off/on I manage to get the status back to "normal", but after a few hours some power supply's are again marked as "disabled".
 
Looks like SNMP en IOS difference from opinion.
 
Hardware
WS-C3750X-24S-S
C3KX-PWR-350WAC
 
Software
15.0(2)SE
C3750E-UNIVERSALK9-M

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Cisco Switching/Routing :: 3750X Stand Alone Secondary Power Supply Act As Pool Of Power

Apr 4, 2012

In a stand alone 3750x switch configuration, can the secondary power supply only act as a redundant power supply (active/standby), or can it become a "pool" of power similar to power sharing mode for StackPower (somewhat active/active)?  I understand there is no stack involved here but I'm curious if this functionality is possible.

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Cisco Switching/Routing :: Downgrade 3750X With IP Base To LAN Base For Stacking

May 6, 2012

I have a WS-C3750X-12S-S (IP Services) that I THINK I'd like to downgrade to LAN Base so I can stack it with a WS-C3750X-48T-L that is already LAN Base..

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Cisco Switching/Routing :: WS-C3560-48PS SFPs Compatible With 2960-S Switches

Jan 3, 2013

I need to replace an older 3560 with a new 2960-S and am wondering if the SX SFPs I already have will be compatible with the 2960-S. [code] I cannot find any way to get the part numbers of the SFPs.

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Cisco Switching/Routing :: 3750X Power Needs For PoE

Mar 21, 2013

I am building a switch stack using 4 48 port 3750X switches that will also have the power stacked.  If I install a single 715W power supply in each switch will the stack support 802.3af accross all 48 ports on each switch?  My calculations are 48 ports x 15.4W which gives me almost 740W needed which is over hte 715W power supply.  I was reading somewhere were it mentioned that in a powerstack additional power can be drawn from the stack.  I know this will not work if you are trying to support power on all switches accross all ports but would it if say 2 of the 4 switches are needing to provide PoE accross all 48 ports?  If I say we can only use 24 ports per switch for PoE that drops the power need down to 370W which I believe should work.  Just trying to get a better understanding of PoE consumption.  Would the best solution be to just add a second power supply to each switch?

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Cisco Switching/Routing :: Stacking 2960S Switches Options?

Oct 10, 2012

I have 2  Catalyst 2960S (24 ports and 48 ports). Can I stack them using the Uplink connection instead of the stack modules. I know Stack module is the best option but it is kind of expensives (half price of the 24 ports switch) and I only need to stack no more then 2 switches.

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Cisco Switching/Routing :: WS-C3750G-48PS / Unable To Update Boot Path In Stack Switches

Sep 11, 2012

I am in the process of upgrading our stack of 4 switches consist of WS-C3750G-48PS. Upon reading release notes found that there are two versions of release notes 1 day apart, the one 02 Sep 2012 saying that WS-C3750-48PS is not supported in this version. Then in release next day 03 Sep 2012 that note has been removed. Which one is correct. Is it supported with my model of switch or not.also unable to update boot path in the stack switches, "switch all" is not supported in the current IOS. Master switch has new boot path but unable to change in slaves.

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Cisco Switching/Routing :: Power Supplies In Stack With 3750X

Mar 12, 2012

I have two WS-C3750X-48PF-S in stack, but every one has just one power supply. In the package of the switches is included one stack power supply cable.does it make sense to use stack power cable if every switch has just one power supply ??

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Cisco Switching/Routing :: 3750X / 3560X - Power Cord For PDU?

Aug 28, 2011

Is the CAB-C15-CBN - Cabinet Jumper Power Cord, 250 VAC 13A, C14-C15 Connector, supported on the Cisco Catalyst 3750X/3560X. I need to plug the switches into a UPS PDU, that requires a C14 plug.

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Cisco Switching/Routing :: Finding Specification For 3750x PoE Power Supply?

Jul 11, 2012

Looking at the specs for the 3750 power supply - is the WS-C3750X-48P-S model with the 715W power supply referring to the amount for both power supplies per switch or just one power supply per switch? Meaning, is the 715 a accumulative number or, just the watts of one power supply. I would like to purchase a 3750x PoE switch with redundant power supplies. If this model is not the correct one?give me the model that offers 48 port PoE with redundant power supplies?

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Cisco Switching/Routing :: 3750X Stack Power Limitation With Non-POE Switch?

Oct 28, 2012

We have 9 x 3750x switches with 5-nonPOE and 5-POE. There is a limitation with 4 POE per stack with Stack Power.
 
Can we combine all 9 to one stack since there are only 4 POE?
 
Or, is the 4-switch limitation applied regardless if they are mixed with POE and non-POE?

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Cisco Switching/Routing :: Enable Second Power Supply On 3750x Switch

Nov 6, 2012

I have a 3750x 48port POE switch that I installed a second power supply in. But it doesnt power on. Am I supposed to enable it in the switch somewhere? I've plugged it into a couple different outlets so I know that's not the problem.

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Cisco WAN :: 3750G-48PS-E Stack-Wise 50CM Stacking Cable

Jan 21, 2013

just wonder if the Cisco Stack Wise 50CM Stacking Cable is freely available when purchasing Cisco Catalyst 3750G-48PS-E or we need to pay for it?

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Cisco Switching/Routing :: Catalyst 3750X With PoE Secondary Power Supply Options?

Jul 21, 2012

When quoting a Catalyst 3750X with PoE (WS-C3750X-48P-E) the Dynamic Configurator Tool allows to include as the secondary power supply option the Catalyst 3K-X 350W AC Secondary Power Supply (C3KX-PWR-350WAC/2), but the default included primary power supply is the Catalyst 3K-X 715W AC Power Supply (C3KX-PWR-715WAC). My questions are the following:
 
1. Will this combination of power supply work?

2. Will the C3KX-PWR-350WAC/2 be able to power up the switch if the primary power supply of 715W fails?

3. Will the PoE will be lost if the primary power supply fails and only the secondary power supply of 350W keeps working?

4. If this secondary power supply of 350W is not suitable for PoE, why it is available as a secondary power supply option in the Dynamic Configurator Tool for a PoE switch?

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