Cisco Switching/Routing :: C3750-X Stacking Configuration

Mar 30, 2013

I am having troubles to get 2 C3750-X switches WS-C3750-X-48P-L) to stack.   They are both running  iOS 15.0(2)-UNIVERSALK9, and are licensed for IP Base.
 
If I connect stack port 1 of switch 1 to stack port 2 of switch 1, and  stack port 1 of switch 2to stack port 2 of switch 2 I get the following:
 
WS-C3750-X_STACK1_SW1>show switch stack-ports summary
Switch#/  Stack   Neighbor   Cable    Link   Link   Sync      #         InPort#     Port              Length    OK   Active   OK    Changes   Loopback          Status

[Code].....
 
I have tried restarting (powering off for about 1 min and turning back on) simultaneously, and powering off switch 1 for 1 min and switch 2 for 2 min.   I have also tried both enabling the stack ports, and disabling followed by enabling.

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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 :: C3750 - Running Configuration File

Aug 7, 2008

We have a bunch of switches that are running fine but the running-config file is missing and we can't save the config to the tftp server. IOS is c3550-ipbasek9-mz.122-37.SE1.  I've got lots of these switches running the same code that are just fine.

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Cisco Switching/Routing :: SG 500 Stacking SFP Cabling

Nov 14, 2012

How to stack a set of these switches with the copper 5G SFP on these switches. We currently have 4 switches stacked with Cat5e jumpers between S1&S2. We want to stop using this stacking method and go to the SFP. What is the best way to do this. Live would be preferable but whatever is the safest method is the way we will proceeed. Any goth'ca's in this process?

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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 :: C3750 - Data Center / IP Routing

Feb 21, 2013

I have a problem to solve in our data center, see attached drawing. HW: Our core switches consists of two stacked C3750 with ip routing. What I want to do is probably simple but I haven't been able to figure out the best method.
 
VLAN10 and VLAN20 should not be able to communicate with each other. (ACLs?)VLAN10 will have it's own default route/firewall. Both VLAN10 and VLAN20 should be able to send server backups to server in VLAN30. All 3 V LANs come in on a trunk from a pair of stacked C2960-S. I need it to be able to scale if we have 50 VLANs for instance, hopefully without long complicated ACLs. I've been considering VRF's, PBR but can't decide what's the simplest solution to this problem. I have never done this before so I would prefer to start off on the right foot.

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Cisco Switching/Routing :: 6500 - Stacking Over Fiber?

May 23, 2012

Someone had told me the 6500 switches can be stacked via fiber. This feature is available for the 3750s?

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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 :: 3750 POE Switch Stacking?

Aug 12, 2012

We have three Cisco 3750 - 48port  POE -LAN switches and i am trying to see if there are any issues when we stack POE and Non-POE type of switches.Aslo looking for information on the advanatage and disadvantage the stacking can provide on a Cisco 3750 48port.

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Cisco Switching/Routing :: Stacking 3750G And The 3750E?

Nov 20, 2012

have 2 3750's one is an 3750E the other one is a G... Since they are 2 different versions Do I need to correct ios for each for example my 3750E switch i would have
 
IP BASE
 c3750e-ipbasek9-mz.122-53.SE2.bin        and for my 3750G switch should i use
  
IP BASE
 
c3750-ipbasek9-mz.122-53.SE2.bin
  
Which would be 2 separate images

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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 :: 3560 V2 Stacking With 3560X?

Mar 14, 2012

Im going to be ordering a new 3560X L3 switch (ws-3560x-48pf-s). We currently have a 3560 V2 switch and I've read it supports stacking, but looking at the back I just see a console port. Is there an extra card I have to get for this 3560V2 to make it stakable with the 3560X?

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Cisco Switching/Routing :: Configure Q-in-Q On WS-C3750-24PS?

Nov 6, 2011

I have  WS-C3750-24PS  version 12.2(55)SE4.  I am configuring PBB VPLS.   MY PE/P routers are alcatel 7710/7750
 
my topology is like that. 
  
CE1<-------> Provider_switch(3750)<-------> PE1 < ----IP/MPLS----> PE2<-------> Provider_switch(3750)<----------->CE2
16                        11                                                                                                 11   

[Code].....

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Cisco Switching/Routing :: C3750 SFP Failure After Reload

Mar 11, 2013

I have a cable from an SFP module in a WS-C3750-48P with 12.2(55)SE1 running to a Gigabit port on a Cisco WLC. After the switch recovers from a power failure, the gigabit autonegotiation fails. The cure is a long drive to unplug and reseat the SFP. Note this happens at too many similar sites for this to be a loose connection. Interface shutdown then 'no shutdown' is not sufficient. The state is 'line protocol is down (not connected)'. Interface is configured for switchport mode trunk (auto speed, auto duplex). Command 'switchport nonegotiate' makes no difference. Is there a more powerful command than 'shutdown' which might toggle the interface signals? Is there some way of resetting the SFP? sh int gi 1/0/1 displays 'media type is 10/100/1000BaseTX SFP' and zero packets received.

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Cisco Switching/Routing :: Message Error With C3750-I5-M

Jan 2, 2008

I have this system: IOS (tm) C3750 Software (C3750-I5-M), Version 12.1(19)EA1d, RELEASE SOFTWARE (fc1
 
An error appear in console (many times in one minute):
 
Jan  3 16:25:37: %LINK-3-BADMACREG: Interface StackPort1, non-existent MACADDR registry for link 0
-Process= "<interrupt level>", ipl= 4
-Traceback= 20A364 187F04 58D6FC 58B950 2D7CE0 2E00C8 2E2BEC 2E2F24 2B0BF8
 
What is the problem? What is the solution?

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Cisco Switching/Routing :: C3750 - ACL Building For QOS Or Policing

Jun 6, 2012

I would like to apply policing on a C3750 interface, for all traffic matching 10.0.0.0 / 8, except for sub net 10.0.0.0 / 24. I plan to apply the following configuration, with an ACL that denies 10.0.0.0 / 24 then accept 10.0.0.0 / 8. I am quite sure of the answer but need a confirmation about the following configuration correct ? (10.0.0.0 / 24 will be not blocked, and no policing will be apply on it?)
 
ip access-list extended TEST
deny tcp 10.0.0.0 0.0.0.255 any eq 5000
permit tcp any 10.0.0.0 0.255.255.255 any eq 5000
[code]....

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Cisco Switching/Routing :: C3750 - Packets Lost

Nov 21, 2011

I have a stack of 2 C3750-switches (WS-C3750G-24TS-1U) with IPBASE-firmware (12.2(52)SE). 
 
When I ping to a machine (in this case a virtual one), the replies are always received on the port where the machine is connected, but on the port-channel connecting to the stack of the 'pinging device' the reply comes only for certain initiators, and not for all.
 
Setting:
Gi1/0/6: Device/Server I want to connect too ; defined as access port
Gi1/0/25 + Gi2/0/25, as Port-Channel 1: The location of the devices I connect (read as: the uplink to the stack of the PC's), defined for Dot1Q-trunking
 
Monitoring setup: Source ports: Both: Gi 1/0/6, Po1 (or Po1 replaced by both interfaces)
 
For the machines which can ping the server I see 2 echo (ping) requests, followed by 2 echo (ping) replies ... So once seen on the Po1, and once seen on the interface Gi1/0/6.

However for other machines, the 2nd reply is missing ; which must be caused by the dropping of these packets in the switch.  At least, I my opinion this must be the reason... But I can't see any (change of) output drops at int Po1, nor at Gi1/0/6.  The CPU doesn't seem to have high usage, and even then, I don't think the error would be constant, as it's always failing for some PC's, and never for others... (at least for a certain time, a few hours it can be constant, the problem dissapears from time to time).

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Cisco Switching/Routing :: Stacking Or 10GE Link Between Two 3750

Jan 22, 2013

We have two 3750 stackable switches in core layer.
 
1. We are planning to stack two 3750 for greater bandwidth to use
 
2. We could configure 10GE link (by Network module) between these two switches
 
which solution provides increased bandwidth and redundancy?

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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 :: Catalyst 2960-S Stacking Connection

Apr 11, 2012

I followed the 3-switch Redundant stacking diagram and now when I boot up the stack Switch 2 is acutally Member 3 and Switch 3 is Member 2.
 
We plan on having Port-Channels spanning across Switch 1 - Master and Switch 2 (Member 3) of identical port types. Switch 3 (Member 2) is going to have 2 10GIG port channel created.
 
Is there going to be a problem renumbering the stack as they physically sit or should I just configure the devices based on thier logical member numbers.
 
I don't understand why the stack connection is Switch 1 - 1 ----> Switch 2 -1
                                                                    Switch 2 - 2 ----> Switch 3- 1
                                                                    Switch 3 - 2 ----> Switch 1 - 2

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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 :: 3560x Stacking And Multicast Traffic

Dec 20, 2012

I am trying to resolve a situation where we need to send multiple (2 atleast) multicast feeds from a source to our multilayer switch (3560x).
 
The problem with the source is that it can only send a feed to a single switch at a given time. It can not send 2 (identical) feeds to two 3560x devices (on 2 different subnets/vlans). I was wondering if i could make the two 3560x devices appear as  1 device (using virtual  chassis system or a similar feature). I am running ip services IOS feature set (c3560e-universalk9-mz.122-58.SE2.bin).

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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 :: Stacking WS-C3750X-24P With WS-C3750G-24PS?

Dec 10, 2011

I'm having trouble stacking a new WS-C3750X-24P with existing switches WS-C3750G-24PS ?I can see the license is on the  new WS-C3750X-24P:
 
 switch#sho lic
Index 1 Feature: ipservices
Period left: 8  weeks 4  days
License Type: Evaluation
License State: Active, Not in Use, EULA not accepted
License Priority: None

[code].....
 
I could put on the c3750e-ipbasek9-mz.122-55.SE1 image, but I may need to get the license sorted still, but not sure if that will work or how to add it if i got one.....

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Cisco Switching/Routing :: Switch 2960 / 3750 Stacking?

Feb 19, 2013

how to stack 2 switches catalyst 2960 also haw to stack 2 cisco 3750 switches

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Cisco Switching/Routing :: WS C3750 Stack Switch Compatibility

Mar 13, 2011

We have existing stack of  3 units of  WS-C3750-48TS-S ( 100 mbps ports with Gigabot uplinks). with IOS as follows, Can we add  WS-C3750G-48PS-S  in this same stack (this is 48 Gigabit ports)?

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Cisco Switching/Routing :: Recommended IOS For Switch C2960S And C3750

Jun 13, 2013

We have several of these WS-C2960S-24PS-L running 12.2(55)SE5  C2960S-universalK9-M and need to upgrade to a better.IOS since we have a sitution where CPU would get to 100% but we have only a few ports connected.Also we have several of WS-C3750-48P running 12.2(55) SE6 C3750-IPBASEK9-M.

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Cisco Switching/Routing :: To Change SDM Template C3750 Stack

Feb 4, 2013

According to cisco manual in order to change SDM template i need to reboot switch, but when i have C3750-X stack do i need to reboot stack or maybe will be enough reboot in sequence the stack members?

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Cisco Switching/Routing :: C3750 Switches MAC Address Authentication

May 9, 2013

We are deploying the  ISE MAC address authentication by-pass (mab) feature in our network as an alternative to port security on the switch port. Works well except for certain devices e.g. printers, snmp modules, and Unix/Linux Operating systems which can range from 5-10 minutes to never in authentication/opening the port.

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Cisco Switching/Routing :: Can Stack (ws-c3750G-12s) With (ws-c3750X-24p-poe-s) With (ws-c3750-48p-10/100 Poe)

Feb 3, 2012

can i stack cisco (ws-c3750G-12s) with (ws-c3750X-24p-poe-s) with (ws-c3750-48p-10/100 poe) i mean even a switch is 10/100 and the other switch is 10/100/1000?

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Cisco Switching/Routing :: Upgrade C3750-stack Without Downtime?

Sep 30, 2009

Is it possible to upgrade a c3750-stack one member at a time to avoid downtime? I need to keep L3-functionality up.
 
If I have one etherchannel from access-switch (2 channel-ports in 3750, in different stack-members), my 3750-stack as a distribution layer switch, and another etherchannel (also spread over multiple stack members) to core, can I upgrade the entire stack without traffic interruption?

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