Cisco Switching/Routing :: How To Upgrade 3750-X POE

Mar 24, 2013

I have a situation where I have a 3750-X stack bought with the 350w power supplies. A "show Inv" lists model as "WS-C3750X-48T-L". I now need to suport POE in that space. Is it possible to add in a 1100W power supply and have the switch support POE or is the chassis different and cannot support POE, no matter what PS is installed?

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Cisco Switching/Routing :: Upgrade IOS On 2960 And 3750?

Dec 19, 2012

We are going to upgrade our IOS on our WS-C2960G-48TC-L. But before we do that i want to ask whats the best IOS release to choose. Why we want to upgrade is because our switch software now don't support ssh just telnet access
  
Switch details:
 
Model: WS-C2960G-48TC-L 
SW Version:  12.2(25)SEE2
Image: C2960-LANBASE-M

I was thinking about upgrading the IOS to 12.2(44)SE6 are maybe i should upgrade it to a newer release?
 
One more thing we have a bunch of stacked 3750 switches, that also need to be upgraded.

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Cisco Switching/Routing :: Can Upgrade 3750 48TS-S To The EMI Software

Jun 13, 2012

Can I upgrade my 3750 48TS-S to the EMI software or does it need to be a 48TS-E?

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Cisco Switching/Routing :: Zero Downtime 3750 Stack Upgrade?

Jun 10, 2011

Zero downtime 3750 stack upgrade?

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Cisco Switching/Routing :: Zero Downtime 3750 Stack Upgrade

Feb 3, 2009

Zero downtime 3750 stack upgrade 

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Cisco Switching/Routing :: 3750 - Error Message While IOS Upgrade

Jan 6, 2013

Have a small stack of two 3750 routers.  Get the following error message every few secounds:
 
%STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 1 has changed to state DOWN
%STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 1 has changed to state UP
 
Now I replaced the stacking cables but no joy. It was ok for an hr or so but then the error messages popped up again. Also random links on this stack back to access layer user switches have been going up and down randomly. So I have decided to take the next step and upgrade the IOS.
 
 Although when I try and copy a new IOS I get the following error:
 
%Error writing flash:/c3750-ipservicesk9-mz.122-55.SE6.bin (No space left on device)
 
Seems this image is 130MB while the image that is currently on it is 74MB and free space is 54MB. How do I get the image onto the router? If I delete the current image from flash will that cause the router to stop functioning?
 
Also I noticed there seems to be more than one flash directory. See below:
 
copy tftp: ?
  flash1:         Copy to flash1: file system
  flash2:         Copy to flash2: file system
  flash:          Copy to flash: file system
  null:           Copy to null: file system
  nvram:          Copy to nvram: file system
  running-config  Update (merge with) current system configuration
  startup-config  Copy to startup configuration
  system:         Copy to system: file system
  vb:             Copy to vb: file system
 
The current router image seems to be in flash1 and flash 2 also. Could I delete the image from flash1. Upload it there and then boot the router from flash1?

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Cisco Switching/Routing :: 3750 Stack Switches IOS Upgrade?

Nov 13, 2012

I am trying to do ios upgrade on 5 stacked 3750 switches. All the switches have different model number, so i am wondering which image file i should download. As far as i understand all the stacked switches should have the same IOS, i may be wrong. The switches have the following model numbers and SW images;
  
Switch   Ports  Model              SW Version              SW Image
------   -----  -----              ----------              ----------
     1   28     WS-C3750G-24PS     12.2(35)SE5             C3750-IPSERVICESK9-M
*    2   28     WS-C3750G-24PS     12.2(35)SE5             C3750-IPSERVICESK9-M
     3   52     WS-C3750G-48PS     12.2(35)SE5             C3750-IPSERVICESK9-M
     4   30     WS-C3750E-24PD     12.2(35)SE5             C3750E-UNIVERSAL-M
     5   30     WS-C3750E-24PD     12.2(35)SE5             C3750E-UNIVERSAL-M
 
which image file i should use as they all have different model numbers and Cisco provides different image files for each model.

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Cisco Switching/Routing :: 3750 48PS Stack IOS Upgrade

Jul 9, 2012

I want to upgrade the IOS version of 3750 48PS switches. these stacks are located on different building some of the them having 2 members and some have 3 members in a stack.step by step to upgrade the IOS of these switches.

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Cisco Switching/Routing :: 3750 Switch IOS Upgrade Failed

Oct 4, 2012

I have upgraded my 3750X switch from

c3750e-universalk9-mz.122-53.SE3
c3750e-universalk9-mz.122-55.SE5.bin
 
later that by mistake i typed delete /force /recursive flash:now, I am unable to load new IOS error loading "flash:c3750e-universalk9-mz.122-55.SE5.bin" Interrupt within 5 seconds to abort boot process.Boot process failed...

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Cisco Switching/Routing :: 3750X / 3750 V2 - Upgrade License

Dec 6, 2011

I recently added a 3750X-24P-L into a stack of 3750V2 switches.  I did so by getting the temporary upgrade license from LAN Base to IP Services; I added the switch no problem.  I now have the permanent license and I was wondering if I could install the permanent license without having to remove the switch from the stack.  I tried a license install but that failed.  The switch is not currently the master but I figured I might promote it and then try the install. 

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Cisco Switching/Routing :: Catalyst 3750 Series Stack IOS Upgrade?

Oct 8, 2012

I have Cisco Catalyst Stack structure that  consist of;
 
3750E-48TD-S (MASTER) (UNIVERSAL Image)
3750G-48TS-S (IPBASE Image)
3750G-48TS-S (IPBASE Image)
3750G-48TS-S (IPBASE Image)
             
I want to upgrade their IOSs to k9 images.
 
I can not dowload Universal Image file from Cisco website because of the expired service contract.  I have IPBASE IOS files for all switches,
 
Can it be a problem to upgrade master switch IOS from Universal to IPBASE image?

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Cisco Switching/Routing :: Rolling Stack Upgrade Of Catalyst 3750

Apr 1, 2013

I want to run rolling-stack upgrades on several stacks containing Catalyst 3750X-switches. I have done as follows: Configured the redundant uplinks as active and stand-by.Started to upgrade by using archive download-sw /rolling-stack-upgrade /overwrite /reload The upgrade starts as expected BUT switch number 2 in the stack is reloaded BEFORE switch 1 is finnished, the result is of course downtime for the stack. The documentation says something about the command "boot time", but what is this command doing? The default seems to be 7 minutes, it this parameter the time the upgrade-process waits before booting the next switch in the stack? I would expect that switch number 2 is reloaded when switch 1 is up again after reload, and not after an absolute number of minutes, is the rolling-stack-upgrade not working this way ?

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Cisco Switching/Routing :: Catalyst 3750-X Roll Staking Upgrade

Nov 13, 2011

I have read that the 3750-X supports upgrading with minimal traffic lost with RSU feature, on the configuration guide the scnario is with the end user connected to the 3750-X stack with LACP and the uplinks to the network running STP, one uplink is forwarding and the other is blocked. I have the same scenario but for the network uplink i also have LACP. When i tried to configured the RU stanby one of the uplink LACP the switch gives an error.
 
                 -----------------------------    1-Stck-3750-X  ----------------------------
LACP-HOST                                                                                            LACP- Network Uplinks
                   -----------------------------    2-Stck-3750-X  ----------------------------

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Cisco Switching/Routing :: Upgrade IOS For Production Core 3750 Switch

May 7, 2013

I want to upgrade IOS for my production core 3750 switch. Below is Show version/fash output. I have IOS image "c3750-ipservicesk9-mz.122-55.SE7", need to confirm below concerns:-
 
1-As this is stackable switch do i need to upgrade on all Switch..i can see there are 3 flash while doing show flash?
2-Is above IOS image support with  my switch? do i able to enable ssh?
3-is flash memory is enough to succefully upgrade IOS?
4-Any other point which i should keep in mind before upgrading..any special feature which this IOS wont support.

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Cisco Switching/Routing :: Upgrade IOS 3750 Stack - Reboot Minimal Impact

Sep 13, 2012

I wanted to know if there is a way of upgrading the IOS on a stack of 6 - 8 3750's with minimal impact at reload. Is there a way to reload one member at a time?

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Cisco Switching/Routing :: 3750 - Firmware Upgrade Of Switch Stack Fails

May 9, 2012

I have a stack of 4 Cisco Switch 3750 (1 x WS-C3750G-24T, 2 x  WS-C3750-48P and 1 x WS-C3750V2-48PS) and I want to do an firmware upgrade of this stack. Actually, all the 4 switches are at the firmware version 12.2(50) SE1 "IPBase" and I want to upgrade them to 12.2(55)SE5 IPBase. According to the release notes, all the switches in my stack are supported.
 
To upgrade the firmware, I use the command "archive download-sw /imageonly /overwrite tftp://IP_Address/c3750-ipbaselmk9-tar.122-55.SE5.tar" The firmware gets uploaded correctly but then I get the error message "There is insufficient space in flash: to install the required image. Clean up some old images, and try again."
 
When I do a "show flash", I see that the switch has 5650944 bytes free of 15998976 bytes.
 
How can i upgrade my switches? Is there an error in my command which I use? Do I need to add an other option?
 
The problem is, the switches are located in a branch office and there is no direct access to them. Everything must be done remotely.

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Cisco Switching/Routing :: 3750 / 6509 - Upgrade Core Switch Without Disrupting Network?

Feb 2, 2013

I am planning to upgrade the current core switch(3750) to 6509 series switch. Since we have a production network running we have to plan for an online core switch upgrade.

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Cisco Switching/Routing :: Perform STFTP On 3750 Or 3750-X?

Jun 30, 2012

Do I need the Universal image to perform stftp on a 3750 or 3750-X?

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Cisco Switching/Routing :: Stacking 3750-X With Universal Image With 3750-G Running BIN Image?

Oct 10, 2011

I'm looking at adding a Cisco 3750-X switch running c3750e-universalk9-mz.122-55.SE1 (IP base license) into a stack of 3750-G switches running c3750-ipbasek9-mz.122-55.SE1.bin Given that the version and feature sets are the same I don't forsee any compatibility issues. Would there be any reason why a universal image wouldn't stack correctly with other switches running the single .bin file?

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Cisco Switching/Routing :: Replacing 3750 24 Port With 3750 48 Port?

May 21, 2012

We have a stack of switches that is at the max number of members allowed in the stack. Problem is we are running out of port density and need to add more ports. So instead of adding a whole new stack I would rather replace 2 of the 24-port swicthes with 48-port switches.
 
If the two 24-port swicthes we are removing are stack members and neither of them are the stack master, I should be able to replace the 24-port switches with the 48-port switches without bringing the master offline? If the new 48-port switches are running the same IOS version as the current 24-port swicthes, they should add themselves to the stack?Would I have to tell the new 48-port swicthes what switch numbers they are replacing in order for them to be added to the stack since we are at the max number of members?Also since the 48-port swicthes are replacing 24-port switches will the master give the 48-port switches the configuration for only the 24-ports?

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Cisco Switching/Routing :: 3750 - L2 Trunking Versus L3 Switching

Dec 9, 2011

some of our switches have the switchport mode trunk command configured between the 3750 switches but other 3750 switches connected to our 6509 core switch do not have the switchport mode trunk command to permit Vlans from going across the swtiches instead it has an ip address and says no switchport what is the difference between does two. Is trunking used only for Layer 2 and L3 is used to route  interface vlans?

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Cisco Switching/Routing :: Multiple VLAN Routing Tables For 3750 Catalyst

Oct 24, 2012

I have a network with a Catalyst 3750 as the main switch and then some Catalyst 2960 switches that are plugged in to that. I have a server running windows server 2008 with a couple of virtual machines running in Hyper-V. I created 4 VLANS listed below and gave the 3750 the following IP Address.I would like the 3750 to only be configurable from VLAN 40 but currently every VLAN can connect to it, I noticed in the standard web page settings there was a setting for "Management VLAN" but it was set to 1 and would not let me change it, I kinda assumed that was for the management port in the back.-Now the tricky part, I was trying to set up routing between the VLANs and so far I have only been able to get a sort of "all or nothing" routing to work. I can turn IP routing on and add two or more VLANs to the routing and it works fine. But what I was hoping to do is create a couple of "junction vlans" that would only route to one or two other vlans. For instance, I wanted to create a VLAN 100 that routed to VLAN 20 and 30 but nothing else. I also want to route VLAN 1 just to VLAN 30, and so on. I am able to do each one of the cases but only one, it seems like the switch only supports one "routing table" am I missing something or is this just a limitation of the switch?

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Cisco Switching/Routing :: Is 3750 SW Capable Of Handling Full Routing Tables

Oct 8, 2012

Is a 3750 sw capable of handling full routing tables and what can you recommend in a small mutihomed BGP router or switch capable of handling full routing tables?

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Cisco Switching/Routing :: Catalyst 3750 Multi-cast VLAN Routing

Oct 28, 2012

I have a network with several catalyst 2960 switches and one catalyst 3750. I have created two VLAN and set up the proper routing and everything is working fine there. I have a client/server application that used multicast in the initial start up for the client to determine available servers, the issue is one of my clients is on a different VLAN then the server. I am able to route the multicast using MVR as long as both the server and the client are plugged into the 3750 by creating a static route, making the server a source port and the client a receive port. Unfortunately I need the client and the server plugged in to different 2960s. My question is how do I establish multicast routing between the two and perferably do it dynamically (always route multicast traffic from one VLAN to another).

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Cisco Switching/Routing :: Inter-VLan Routing On Catalyst 3750 Switch

Dec 17, 2011

I have been looking into this for a while and I can't seem to figure out why my 2nd vlan is not able to connect properly to the net.
 
My switch has 12 ports where my devices connects directly, they are all on Vlan 1 and they all work perfectly. on Port 12 I have a dlink router that is connected to a cable modem. the dlink router has an Ip address of 192.168.0.20
 
I created a second vlan (vlan2) and enabled dhcp relay on it. then I assigned port 9 on the switch to  (vlan2)my laptop which is connected to port 9 seems to get an ip address fine and able to ping only some devices on my network (vlan1) and is not able to go out to the internet.  I think it has to do with the routes. [code]

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Cisco Switching/Routing :: 3825 / Replacing Routing Function With 3750 Switch?

Jul 27, 2012

I have the task of replicating the router config on a 3825 router on a 3750 switch. Reason is we are taking out the router and replacing it with the switch to make use of the router for other functions.
 
Below is main part of the router config:
 
!
ip source-route
ip cef
!
!
multilink bundle-name authenticated
!
license udi pid CISCO3825 sn FCZxxxxxxx
!
vlan internal allocation policy ascending

[code].....
 
The 3750 switch I have runs C3750E-UNIVERSALK9-M, Version 12.2(55)SE3 on a LAN BASE license.
 
The first thing I have done is to order for a license upgrade to IP BASE which would give the support for OSPF routing.I do not see much of an issue with the Interface configs, however, I am not too sure about replicating the routing config on the switch.
 
My question is can I run the commands as shown for the OSPF routing on the switch? If not, can I get suggestions on how best to set this up on the switch?

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Cisco Switching/Routing :: 3750 Inter Vlan Routing Configuration

Mar 24, 2013

In 3750 switch,I have configured intervlan routing.I have three vlans Vlan 10,vlan 20,Vlan 30 and I have assigned IP address for that Vlan.In vlan 10,I have connected one systen gigabitethernet 0/1 interface.From my system I am able to ping vlan 10 ip address but I can't able to ping other vlan ip address (vlan 20,vlan 30).Is it possible to up the protocol for all that time.

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Cisco Switching/Routing :: IP Routing On 6500 Series Versus 3750?

Jan 24, 2013

For intervlan routing, Is 'IP routing' command enabled by default on a 6500 series switches based on the IOS?and on 3750 switches, do we need to enable the "ip routing" command manually for intervlan routing?

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Cisco Switching/Routing :: InterVlan Routing With 3750 And 2960 Switches?

Nov 21, 2012

I am using a 3750 as a default gateway for multiple Vlans on a few 2960 switches. The trunk lines are configured and working and I have assigned ip addresses to each of the Vlan interfaces on the 3750. My issue is that I can only ping the ip address on the Vlan interface of the 3750 if I have a working computer plugged directly into the Vlan on the 3750. I only have 3 vlans on the 3750 that have hosts directly connected (vlans 2, 10 and 40) the other vlans ( 20 and 70) don't have any clients plugged into them on the 3750 but the hosts reside on 2 different 2960s that connect via trunk ports. How do I keep the vlan interface on the 3750 switch pingable when I don't have hosts directly connected in that vlan on the 3750? (yes, I have enabled ip routing on the 3750)

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Cisco Switching/Routing :: Policy Based Routing With 3750 Switches

Oct 17, 2011

I have a simple design with 3750. I configured a route-map which define a next hop. I defined this route-map on a policy on a vlan interface.When I test some ping and a debug ip policy and it seems that my policy never match.Is there any mechanism that prevent the switch from using PBR? I think of CEF .

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Cisco Switching/Routing :: How To Configure Policy Based Routing On 3750

Jan 28, 2013

In our datacenter we have a 3750 stack with IP base image.  I have enabled PBR and reloaded the switch.  Show sdm prefer says i am using default template.  The reason i want to use PBR is that we have 2 firewalls on the same work and want to be able to have granular control over which gateway out of the network they use but still be able to access all internal resouces accross wan and locally.

Created access list to identify traffic:
 
access-list 10 permit 10.2.3.59 (test workstation on vlan 3)
 
Created policy:
 
route-map TestASA permit 10
match ip address 10
set ip next-hop 10.2.0.3
 
Assigned policy to the user vlan3:
 
ip policy route-map TestASA
 
Results:It changed the default gateway to the above gateway but i could not access any resources on any other vlan, could not access resouces accross wan. 

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Cisco Switching/Routing :: About Intervlan Routing On Catalyst 3750 Switch

Apr 16, 2012

I have been looking into this for a while and I can't seem to figure out why my 2nd vlan is not able to connect properly to the net. My switch has 12 ports where my devices connects directly, they are all on Vlan 1 and they all work perfectly. on Port 12 I have a dlink router that is connected to a cable modem. the dlink router has an Ip address of 192.168.0.20,I created a second vlan (vlan2) and enabled dhcp relay on it. then I assigned port 9 on the switch to  (vlan2),my laptop which is connected to port 9 seems to get an ip address fine and able to ping only some devices on my network (vlan1) and is not able to,go out to the internet.

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Cisco Switching/Routing :: Policy Based Routing And 3750 Switches?

Sep 5, 2012

I have a simple design with 3750.I configured a route-map which define a next hop.I defined this route-map on a policy on a vlan interface.When I test some ping and a debug ip policy and it seems that my policy never match.Is there any mechanism that prevent the switch from using PBR?

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