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 :: 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 :: 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 :: 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 :: ASA And 3750x Switches - How To Get VLans Working

Jan 25, 2012

How to get vlans working properly between sub-interfaces on a ASA and a trunk port on a switch.There seems to be issue with the VLAN's being assigned to the correct VLAN and this information being properly sent to the ASA over the trunk.
 
We seem to be unable to ping most of the interfaces except for one on the switch. Sometimes if we are lucky we are able to ping a host on a different vlan that is on the switch. This seems sparadic at best.
 
Logs on the ASA show traffic does not seem to be assigned properly to the correct sub interface. We have access rules on the ASA disallowing traffic not part of the same vlan. For example you will see networkA blocked on networkB when it really should be directed through networkA's sub interface.
 
Any example commands for the ASA and Switch for at least the basic requirements to enable all the VLAN's to communicate properly with the ASA?

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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 :: 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 :: 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 :: 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 :: 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 :: 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 :: How To Monitor 3750 Stacking Port In LMS

May 24, 2012

I would like to ask about 3750 stacking and some Cat6 stuff...
 
1) How do we monitor 3750 stacking port in LMS?
2) Let say if I stack 3 switches, middle switch should be Master. Uplink should be at Top and Bottom. Is best practice?
3) Can we mixed 3750G and 3750X and what is result internal BW - fallback to 32Gps?
4) is there any Qos difference between WS-X6816-10G-2T and WS-X6816-10G-2TXL?
5) is there any Qos difference between MSFC5 PFC4 and MSFC5 PFC4XL?
6) What is main difference between PFC4 and PFC4XL in Sup2T?
7) Pls share more about Central and Distributed Switching in Sup2T and which card support Distributed DFCXL?

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Cisco Switching/Routing :: Shutdown Specific Port On 3750x And Monitor Port At Same Time?

Oct 23, 2011

is it possible to shutdown a  specific port on my 3750x and monitor this port at the same time .for example , im dealing with a mac authenticated network using port security , i want to shut down all the ports that are not used at the moment , however , if some one gets connected to the one of the shutdown ports  i want to know the mac address of the user or atleast to know that i have someone who is just plugged in to the one of the shutdowned ports .

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Cisco Switching/Routing :: 3750X-24 - SFPs In SFP+ Position Not Working

Mar 22, 2012

We have bought four Cisco 3750X-24 Switches with IP Base license for 2 offices (2 switches at each office). The offices are connected with 1 fiber pair and 2 CWDM units. We have 6 CWDM SFP (2x 1470nm, 2x 1490nm and 2x 1510nm). All the switches are up and running with 1 problem: the SFP's in the SFP+ position didn't work.

Only the gigabit port 1/1/1 and 1/1/3 are connected. Gigabit 1/1/2 stay disconnected. I already did some test with other SFP's and labels. Do I need to disable the ten gig ports in the configuration?

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Cisco Switching/Routing :: 3750x Application Not Working When Switch As Gateway

Jun 2, 2011

In change network topology, we are going to assign PC's Gateway as Switch (3750X) IP Address rather than server IP Address. Currently we have configured all Sytems's Gateway is Internet Server IP Address which we are going to replace with Switch IP as Gateway.Issue is while connecting specific application like team viewer in which application tried to send keepalive message to the live server and in case of switch/router IP as gateway. Connection doesn't established. However it is working fine when Internet Server IP treated as gateway.

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Cisco Switching/Routing :: 3750X - VTP Not Working With Switch Not Directly Connected

Sep 9, 2012

We have a 3750X VTP Server and the rest of the switches are clients.
 
Due to cabling issues, we have a switch (Switch F) that we can't connect directly to the 3750X so we have it connected through another switch. Everything is set to VTP client with the correct domain and password but this not-directly-connected switch isn't receiving any VTP VLANs.
 
Anything I need to do on Switch D so that Switch F can receive the VTP updates?

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Cisco Switching/Routing :: 3750x Implementing Macsec Between Two Switches

Aug 19, 2012

Can I implement MACsec betwen two Cisoc 3750X using the  C3KX-NM-1G? 3750x (C3KX-NM-1G) -------------------MMF------------------(C3KX-NM-1G) 3750x.

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Cisco Switching/Routing :: 3750X Out-Of-Band Management Port?

Nov 11, 2010

What is the point of it? It is not a remote console. If i reboot the switch i cannot get back to the out of band management port unless the switch is fully running. Is this only for security purposees? so all telnet/ssh is from an Out of band network?

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Cisco Switching/Routing :: 3750x Inbound Port Policing?

Dec 11, 2012

dont seem to be able to get policing working inbound on a port 3750X v 15.0(2)
 
Config is below:
 
ip access-list extended SMB
permit tcp host 192.168.1.14 host 172.16.1.30
permit tcp host 192.168.1.14 host 172.16.1.31

[Code]....

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Cisco Switching/Routing :: 3750X - Application Not Working (Switch / Router IP As Gateway)

Nov 12, 2012

In change network topology, we are going to assign PC's Gateway as Switch (3750X) IP Address rather than server IP Address. Currently we have configured all Sytems's Gateway is Internet Server IP Address which we are going to replace with Switch IP as Gateway. [code]
 
Issue is while connecting specific application like team viewer in which application tried to send keep alive message to the live server and in case of switch/router IP as gateway. Connection doesn't established. However it is working fine when Internet Server IP treated as gateway.

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Cisco Switching/Routing :: Possible To Do LACP Using 2 X 10GB Between 3750X / 2960S Switches

Sep 4, 2012

I need to know if is possible to do a LACP using  2 x 10GB between 3750X and 2960S (WS-C2960S-48LPD-L) switches.

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Cisco Switching/Routing :: Difference Between IP Base And Universal For 3750X Switches?

Apr 9, 2013

What is the difference between IP Base and Universal for 3750X switches?

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Cisco Switching/Routing :: 3750X / IP Base And IP Services Stackable Switches?

Aug 16, 2012

I'm building a wired closet to aggregate user's connections, Im planning to have 5x 3750X stacked switches and there is a need to run EIGRP, I'm thinking to order one switch with IP service image while the rest will run IP base image, is it workable scenario and what are the drawbacks of such combination of images ?  

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Cisco Switching/Routing :: 3750x Stacked Switches With Latest Firmware

Feb 25, 2013

I have two 3750x stacked switches , both with the latest firmware on them. I enter the configuration onto one switch and it obviously copies over onto the other switch. Although in the configuration I have both a console username and password and an enable password, when I try to log onto the initial switch that I entered the configuration on, I am prompted for a username and password, which works fine, but when I try to enter enable mode i get an error stating that no password has been set. However when logging onto the other switch I am not prompted for a username or password but when I try to enter enable mode I am prompted for a password and can access it with no problems.

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Cisco Switching/Routing :: Port Numbering On A Catalyst 3560 / 3750X

Apr 10, 2012

Assume I had Catalyst 3560X/3750X with 24 ports. The partnumber is WS-C3560X-24P-LI would like to how is the numbering defined if the switches have a C3KX-NM-10G installed with 4 SFP-GE-L.

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Cisco Switching/Routing :: Policy Map Redirect Port 80 Switch 3750X

May 15, 2012

I would like to know if it possible to create a policy map in order to redirect the traffic ( 80 , http, 8080) to a proxy.
 
My current equipment its a 3750X using a IP Service License ,I was reviewing some options but i want to be sure before implement in production.

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Cisco Switching/Routing :: 3750x Switch Port Rate Limit

Oct 8, 2012

I want to limit the bandwidth going to remote site on the switch connecting to our netapp.We have a 4 port channel group setup on our 3750x switch going to our netapp storage. We have a Wan 100mb link to our remote site and we want only 60MBs of that link to be used for Netapp traffic all other local traffic needs to use the full amount of the bandwidth to the netapp.
 
Is possible to allocate bandwidth in this way and how would I go about this? We dont have access to the routers for the link and they plug directly into a port on our cisco.

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Cisco Switching/Routing :: 3750x / Stackpower Switches Show In Standalone Mode?

May 29, 2013

I have a stack of 8 3750x switches connected via Stackwise.  In addition, I have these switches configured as two Powerstacks. When I look at the Powerstacks, they are showing as being in power-sharing mode.  When I look at the individual switches, they show as standalone.   Right now, I have 1 switch in each powerstack that has two power supplies, and then the other three have a single power supply. Below is the output for "Show stack-power detail" as well as the Powerstack configurations.
 
Power Stack           Stack   Stack    Total   Rsvd    Alloc   Unused  Num  NumName                  Mode    Topolgy  Pwr(W)  Pwr(W)  Pwr(W)  Pwr(W)  SW   PS--------------------  ------  -------  ------  ------  ------  ------  ---  ---Powerstack_1          SP-PS   Ring     2145    45      570     1530    3    3Powerstack_2          SP-PS   Ring     2860    60      760     2040    4    4Powerstack_1-1        SP-PS   Stndaln  1430    520     190     720     1    2
Power stack name: Powerstack_1    Stack mode: Power sharing    Stack topology: Ring    Switch 4:        Power budget: 700        Power allocated: 190        Low port priority value: 20        High port

[code].....

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Cisco Switching/Routing :: 3750X Switches Dropping Packets On Uplink Interface?

May 9, 2013

We have a remote site that is using 3750X switches as layer 2 switches back to our home site.  The uplink port is showing dropped packets but the utilization on the link is never about 10%.  We have a 100Mb circuit to this site.  Our speed tests and iperf tests are not showing any issues that we can see.  However the port is still droping packets.  It is not dropping at a high rate but they are dropping.          
  
switch#sh platform port-asic stats drop gi1/1/4
  Interface Gi1/1/4 TxQueue Drop Statistics    Queue 0      Weight 0 Frames 0      Weight 1 Frames 0      Weight 2 Frames 0    Queue 1      Weight 0 Frames 52876      Weight 1 Frames 2      Weight 2 Frames 0    Queue 2      Weight 0 Frames 0      Weight 1 Frames 0      Weight 2 Frames 0    Queue 3      Weight 0 Frames 0      Weight 1 Frames 0      Weight 2 Frames 1330874    Queue 4      Weight 0 Frames 0      Weight 1 Frames 0      Weight 2 Frames 0    Queue 5      Weight 0 Frames 0      Weight 1 Frames 0      Weight 2 Frames 0    Queue 6      Weight 0 Frames 0      Weight 1 Frames 0      Weight 2 Frames 0    Queue 7      Weight 0 Frames 0      Weight 1 Frames 0      Weight 2 Frames 0switch#
         
Is there a way to capture these dropped packets to see what they are?  We do have VOIP phones at the site and are using Qos.

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